[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I can confirm for Lenovo Thinkpad (P15/P17/T15g/T15p/P15v Gen 1) that
backlight control is working now since the last BIOS update Version 1.28
below excerpt from the readme file:
CHANGES IN THIS RELEASE
Version 1.28
[Important updates]
Update includes a security fix.
[New functions or enhancements]
Updated the Diagnostics module to version 04.22.000.
Update Regulatory Information.
[Problem fixes]
Fixed an issue where Power-On Password is set by WMI even if Power-On
Password Control was disabled.
Fixed an issue where Linux adjust brightness fail in discrete mode.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Thanks, "nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1" works on
Ubuntu 20.04 5.11.0-40-generic with Nvidia driver 495.44 on Lenovo
Legion 15ARH05.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Thanks Kunal for the update, this regkey is already incorporated in future
released driver.
So we should not have to explicitly define it in near future.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I had already tried the "EnableBrightnessControl=1" kernel parameter a
year ago but I tried it anyway, no effect. However, trying the
suggestion of @paulplusx I can happily report that brightness works
flawlessly after using
"nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1" with the latest
495 driver. nvidia-smi shows GPU is loaded and opengl works on glxgears
and CG:GO. If someone can test CUDA that would be great.
Thank you everyone and especially @paulplusx for solving this issue,
hopefully this means we can close this bug soon.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi Kamal / David,
Please confirm if anyone get a chance to try with above suggested regkey.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All,
Please try with the EnableBrightnessControl =1 as kernel parameter or add it in
xorg.conf file.
You can add it in device section as shown below -
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVIDIA RTX A3000 Laptop GPU"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
After change in the xorg, please uninstall / install the driver.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All,
Please try with the EnableBrightnessControl =1 as kernel parameter or add it in
xorg.conf file.
You can add it in device section as shown below -
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVIDIA RTX A3000 Laptop GPU"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
After change in the xorg, please uninstall / install the driver.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All,
Please try with the EnableBrightnessControl =1 as kernel parameter or add it in
xorg.conf file.
You can add it in device section as shown below -
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVIDIA RTX A3000 Laptop GPU"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
After change in the xorg, please uninstall / install the driver.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All,
Please try with the EnableBrightnessControl =1 as kernel parameter or add it in
xorg.conf file.
You can add it in device section as shown below -
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVIDIA RTX A3000 Laptop GPU"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
After change in the xorg, please uninstall / install the driver.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Changed in: oem-priority
Status: Confirmed => New
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https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Changed in: oem-priority
Status: New => Confirmed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Now, it works for me (ubuntu 20.04.3) with the kernel (v5.11.0.34.36)
parameter
nvidia.NVreg_RegistryDwords=EnableBrightnessControl=1
And nvidia drivers 460.91.03. No need to do anything else.
The parameter is mentioned in arch wiki
https://wiki.archlinux.org/title/NVIDIA#Enabling_brightness_control
This is all for discrete mode. Credits to @Chaplan from legion discord
for finding this.
For hybrid mode, there is different kernel parameter (for AMD)
amdgpu.backlight=0
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Nothing changed after removing parameter.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Can you also try to boot the system without parameter without nvidia-
drm.modeset=1 and share test results.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
My content of /sys/class/backlight is just the /acpi_video0 directory.
Ubuntu 20.04.1
kernel 5.8.0-63-generic
Lenovo Legion 5 15ARH05
GTX 1650 Ti
Driver Version: 470.57.02
Brightness control still not working.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Please list the content of /sys/class/backlight folder.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Hi All,
Please list the content of /sys/class/backlight folder.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Just to add to the report by @manzood, this bug affects my variant of y540 as
well.
My complete laptop spec is as follows:
Lenovo Legion Y540
NVIDIA GTX 2060 Mobile
Ubuntu 18.04
kernel 5.4.0-72-generic
and again, the workaround suggested by @sureshot16 does not work, editing
/sys/class/backlight/acpi_video0/brightness does not work(except when
prime-select is set to intel),
adding 'Option "RegistryDwords" "EnableBrightnessControl=1"' to
/usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf does not work neither does
adding kernel parameters in grub config.
This brightness issue has been a thorn in my side for the better part of
a year, the only version which works is the Nouveau display driver
installed via "Software & Updates" but has no CUDA support or Steam
integration so that's a deal breaker for me.
Unlike @manzood, suspending the laptop and resuming has never worked for
me and causes artifacts and flickering in 460 specifically. Issue
persists in 465 as well.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The 460 driver is broken again. No brightness control.
01 May 2021: nvidia-driver-460 (proprietary, tested).
A reboot fixed everything. Reporting this here as it's not a bug with
the driver.
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https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
To add more info on what I tried, I have put it here:
https://askubuntu.com/questions/1329928/legion-5-pro-brightness-control-
doesnt-work-on-ubuntu-20-04-with-nvidia-driver . Surprisingly the
brightness also works on Manjaro (as mentioned in my post) after adding
'Option "RegistryDwords" "EnableBrightnessControl=1"' to x.conf.d. Also,
it also works on Regolith Linux 1.5.3.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
As a temporal workaround, this works for me
https://linuxhint.com/display_brightness_commandline/
xrandr --output DP-0 --brightness 0.7
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Same problem on Legion 5 AMD® Ryzen 7 4800h with radeon graphics × 16 RTX 2060
Solution in comment 11 didn't work for me
Also tried some grub commands that did not work.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
It (link above) didn't work for me, even with Kernel 5.10 and 5.11.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Same problem with Legion 5 pro, 5800H+3070. Tried config
https://www.reddit.com/r/GamingLaptops/comments/ls9k5r/legion_5_pro_other_info_64gb_ram_upgrade_linux/
This guy claims that after 'upgrading to Kernel 5.10', 'Blacklisting
noveau drivers', 'changing the .conf file' and 'adding modules in
initramfs', brightness control works. https://www.notion.so/Legion-5
-Pro-Regolith-Important-Steps-2c468d1b33cc481dbd92d5ea59a6b74b
Will try this later. So far I have tried changing .conf and adding
modules in initramfs and it didn't work.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-460 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I have the same problem with Asus Rog Strix (GL502VY). Nvidia 980M.
Ubuntu 20.10, kernel 5.8.0-43-generic. Driver nvidia-driver-460.
Movement of modules to initramfs did not help.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I have the same problem and the fix in comment #11 fixed it.
I agree with comment #16. I join a copy of my dmesg and Xorg.0.log
before and after the fix. I hope it will be useful.
** Attachment added: "dmesg and Xorg.0.log before and after the fix."
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-455/+bug/1905591/+attachment/5462682/+files/XorgLogs.zip
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The workaround suggests that there's an interaction between the NVIDIA
driver and another kernel module at play here. Presumably, adding the
NVIDIA kernel modules to the initrd causes them to be loaded before the
other module. Maybe video.ko, which registers its own brightness
handler?
The modeswitch glitch should probably be tracked as a separate issue.
Can somebody who is experiencing this glitch provide an example video?
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Problem persists with nvidia-driver-460 (460.39-0ubuntu0.18.04.1) on
Lenovo X1 Extreme. The comment #11 workaround still works for this
laptop model.
** Description changed:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX
1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
+ nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not
for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do pop
up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/*
values do change, but the actual display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive or
the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage while
mode-switching during the graphic login sequence. Only a minor glitch,
but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
nvidia-driver-460: 460.39-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I can confirm that this bug affects me too, but unfortunately the
workaround suggested by @sureshot16 that worked for some users here did
not work for me, so I think it wouldn't for some makes and models.
For reference, I'm on a laptop with the following specifications:
Lenovo Legion Y540
NVIDIA GTX 1650 Mobile/Max-Q
Ubuntu 20.04
kernel 5.8.0-38 generic
I've had brightness issues on previous versions of the NVIDIA drivers as
well, somewhat constantly, but they'd stop once I suspended the laptop
and opened it up again once. This is not the case for the 460 driver.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
@sureshot16 thanks a lot!! fixes on my system too! (hp omen 15)
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The workaround outlined by @sureshot16 in comment #11 (add the nvidia
drivers to initramfs) fixes it my Lenovo X1 Extreme too: Brightness
control works again with nvidia-460.32.03, and no pixel garbage on mode
switch either. Thanks, @sureshot16!
** Description changed:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX
1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
+
+ *WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not
for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do pop
up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/*
values do change, but the actual display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive or
the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage while
mode-switching during the graphic login sequence. Only a minor glitch,
but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*WORKAROUND: See comment #11 (add nvidia drivers to initramfs).
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I tried the fix for a different problem in this link randomly and it
worked for me.
https://forums.developer.nvidia.com/t/problem-driver-nvidia-455-45-01
-on-linux-mint-20-4-6-7/165402
I am adding steps here:
1. Add the following lines to the file "/etc/initramfs-tools/modules"
nvidia
nvidia-drm
nvidia-modeset
2. Run "sudo update-initramfs -u" in the terminal
3. Reboot
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Changed in: nvidia-graphics-drivers-455 (Ubuntu)
Status: Triaged => In Progress
** Changed in: nvidia-graphics-drivers-455 (Ubuntu)
Status: In Progress => Confirmed
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
I have the same problem. My system config is:
Lenovo X1 extreme
NVIDIA 1050 Ti max Q
Ubuntu 20.04
kernel 5.8.0-36-generic
Brightness control works on Nvidia 450 driver and not on Nvidia 460.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Triaged
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Here's my log
** Attachment added: "nvidia-bug-report.log.gz"
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-455/+bug/1905591/+attachment/5451331/+files/nvidia-bug-report.log.gz
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Triaged
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Confirming the bug on HP Omen 15 - with GTX 1070.
Driver 450, brightness works. When installing 455 or 460, latest updates.. it
gets stuck at max brightness. (Using ubuntu 20.04.1)
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https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Triaged
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-graphics-drivers-460 (Ubuntu)
Status: New => Confirmed
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Triaged
Status in nvidia-graphics-drivers-460 package in Ubuntu:
Confirmed
Bug description:
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce
GTX 1050 Ti Mobile]:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
*Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but
not for my 18.04.5 Lenovo ThinkPad X1 per comment #5.
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Description changed: + On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX + 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 - - On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile], and other laptop model(s): + *Note that 460 fixes it for Lenovo P73 per comment #6, but not for + Lenovo X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ** Description changed: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 - *Note that 460 fixes it for Lenovo P73 per comment #6, but not for - Lenovo X1 per comment #5. + *Note that 460 fixes it for a 20.04 Lenovo P73 per comment #6, but not + for my 18.04.5 Lenovo X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the problem: https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5 Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: 18.04 Codename: bionic kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux ** Description changed: On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile]: WORKS FINE: nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1 NO BRIGHTNESS CONTROL: nvidia-driver-455: 455.38-0ubuntu0.18.04.1 nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1 - *Note that 460 fixes it for a 20.04 Lenovo P73 per comment #6, but not - for my 18.04.5 Lenovo X1 per comment #5. + *Note that 460 fixes it for a 20.04 ThinkPad P73 per comment #6, but not + for my 18.04.5 Lenovo ThinkPad X1 per comment #5. Updating to nvidia-driver-455 (or -460) results in loss of brightness control. On boot, the laptop display brightness is somewhat less than fully bright and cannot be changed. The brightness up/down keys do pop up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/* values do change, but the actual display's brightness does not. Problem occurs with either version of nvidia-driver-455 (the archive or the ~graphics-drivers/PPA) or any version of -460. Normal functionality returns if I downgrade to any version of nvidia- driver-450. Also observed: 455 and 460 temporarily display some pixel garbage while mode-switching during the graphic login sequence. Only a minor glitch, but note that 450 does not exhibit that issue either. Note also that manually applying this to /lib/systemd/system/nvidia-persistenced.service has no effect on the
[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
The 460 driver package was installed with the latest updates and I've
rebooted.
For me, at least, it's working perfectly again.
And I made a mistake on my machine type: it's a ThinkPad P73.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Triaged
Bug description:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050
Ti Mobile], and other laptop model(s):
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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[Kernel-packages] [Bug 1905591] Re: no brightness control in {455, 460} after update from 450
** Description changed:
- On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX
- 1050 Ti Mobile]
- Updating to nvidia-driver-455 results in loss of brightness control. On
- boot, the laptop display brightness is somewhat less than fully bright
- and cannot be changed. The brightness up/down keys do pop up the gnome
- gui brightness widget, and /sys/class/backlight/nvidia_0/* values do
- change, but the actual display's brightness does not.
+ WORKS FINE:
+ nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
+
+ NO BRIGHTNESS CONTROL:
+ nvidia-driver-455: 455.38-0ubuntu0.18.04.1
+ nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
+
+
+ On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050
Ti Mobile], and other laptop model(s):
+
+ Updating to nvidia-driver-455 (or -460) results in loss of brightness
+ control. On boot, the laptop display brightness is somewhat less than
+ fully bright and cannot be changed. The brightness up/down keys do pop
+ up the gnome gui brightness widget, and /sys/class/backlight/nvidia_0/*
+ values do change, but the actual display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive or
- the ~graphics-drivers/PPA). Normal functionality returns if I downgrade
- to any version of nvidia-driver-450.
+ the ~graphics-drivers/PPA) or any version of -460.
+
+ Normal functionality returns if I downgrade to any version of nvidia-
+ driver-450.
+
+ Also observed: 455 and 460 temporarily display some pixel garbage while
+ mode-switching during the graphic login sequence. Only a minor glitch,
+ but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
-
- nvidia-driver-455: 455.38-0ubuntu0.18.04.1
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to nvidia-graphics-drivers-455 in Ubuntu.
https://bugs.launchpad.net/bugs/1905591
Title:
no brightness control in {455,460} after update from 450
Status in OEM Priority Project:
New
Status in nvidia-graphics-drivers-455 package in Ubuntu:
Triaged
Bug description:
WORKS FINE:
nvidia-driver-450: 450.102.04-0ubuntu0.18.04.1
NO BRIGHTNESS CONTROL:
nvidia-driver-455: 455.38-0ubuntu0.18.04.1
nvidia-driver-460: 460.32.03-0ubuntu0.18.04.1
On my Lenovo X1 Extreme with GPU: NVIDIA Corporation GP107M [GeForce GTX 1050
Ti Mobile], and other laptop model(s):
Updating to nvidia-driver-455 (or -460) results in loss of brightness
control. On boot, the laptop display brightness is somewhat less than
fully bright and cannot be changed. The brightness up/down keys do
pop up the gnome gui brightness widget, and
/sys/class/backlight/nvidia_0/* values do change, but the actual
display's brightness does not.
Problem occurs with either version of nvidia-driver-455 (the archive
or the ~graphics-drivers/PPA) or any version of -460.
Normal functionality returns if I downgrade to any version of nvidia-
driver-450.
Also observed: 455 and 460 temporarily display some pixel garbage
while mode-switching during the graphic login sequence. Only a minor
glitch, but note that 450 does not exhibit that issue either.
Note also that manually applying this to
/lib/systemd/system/nvidia-persistenced.service has no effect on the problem:
https://github.com/hugh712/nvidia-graphics-drivers/commit/bccad5ee6444dd8c5c47ba19ea0232106a1086f5
Distributor ID: Ubuntu
Description: Ubuntu 18.04.5 LTS
Release: 18.04
Codename: bionic
kernel: 5.4.0-54-generic #60~18.04.1-Ubuntu SMP Fri Nov 6 17:25:16 UTC
2020 x86_64 x86_64 x86_64 GNU/Linux
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1905591/+subscriptions
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