*** This bug is a duplicate of bug 562005 ***
https://bugs.launchpad.net/bugs/562005
** This bug has been marked a duplicate of bug 562005
Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no
longer function while using proprietary drivers
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You received this bug
I've removed all my X11 quirks and tested 304.60, the backlight controls
seem to work. They're still really buggy, but no effort is needed to get
them working. Packages meant for Ubuntu 12.04 arr available here:
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates?field.series_filter=precise
.
Not to say that /etc/X11/xorg.conf has been deprecated, but: The X11
Quirks files are a quick way to fix backlight control issues. I have
smashed/replaced my LCD panel since reporting this bug, and no longer
hear a buzzing noise when changing brightness while forcing the
proprietary NVIDIA driver
Also, Martin: Brightness increments are still uneven for me. I'm
terrified of hitting brightness up/down hotkeys too quickly, because I
get a frozen display. No kernel panic though, I'll see if I can acess my
laptop through SSH next time this happens. So anoying, no satisfaction!
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You received
This Ubuntu Advantage program has failed us, I have and will probably
whine again here:
http://www.ubuntu.com/certification/hardware/201101-7181/
The Lenovo Thinkpad T510 laptop has been awarded the status of
Certified for Ubuntu.
Follow-up! I'm not a paying customer, but I'll whine if I can't
Retraction: I meant Ubuntu Certification program, not Ubuntu
Advantage. Different people, sorry!
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You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/562005
Title:
Backlight
I market this bug as affecting the Ubuntu-Certification, referencing the
Certified status of the Lenovo ThinkPad T510 whose backlight does not
properly function. https://answers.launchpad.net/ubuntu-
certification/+question/163597
** Also affects: ubuntu-certification
Importance: Undecided
The nvidiabl driver now detects ThinkPad T510s with model 4313CTO. This
will not allow gnome-power-manager to control the backlight, but at
least the keys will worksort of. With autodetected values,
brightness can be turned down all the way, but can only be set to a
proper maximum by switching
And alternately, there are .deb packages that install nvidiabl via dkms
available from https://github.com/guillaumezin/nvidiabl/downloads .
Currently only 4313CTO models have backlight support by default, but
it's only a matter of adding PCI IDs and some basic detection stuff.
That stuff can be
The nvidiabl driver now detects ThinkPad T510s with model 4313CTO.
This will not allow gnome-power-manager to control the backlight, but at
least the keys will worksort of. With autodetected values,
brightness can be turned down all the way, but can only be set to a
proper maximum by switching
Brendan Donegan of Canonical responded to the request I made to the
Ubuntu Hardware Certification Programme, acknowledged the problem and
said a T510 would be tested. At the very least, the problem will be
noted. Considering I don't pay for support, that's a pretty good
response!
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You received
I have linked this bug to Ubuntu Hardware Certification.
https://answers.launchpad.net/ubuntu-certification/+question/163597
Hopefully they will treat this bug with respect. Switching between text
mode VT and a Nvidia-proprietary powered X server is not stable!
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You received this bug
Sorry, thought I already replied: No, nvidia's bug reporting system
sucks. It doesn't even use HTTPS for login and they don't seem to pay
attention to Linux bugs. Someone like an OEM or big developer will need
to pick this up if it's going to be fixed, I think.
** Tags added: t420 t520 w520
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This is still broken with 270.30, from natty repositories.
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/562005
Title:
Backlight controls of laptops with NVIDIA NVS and
Sent a bug report to linux-b...@nvidia.com, should have done it a year
ago.
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/562005
Title:
Backlight controls of laptops with
I've bumped the bug report at nvnews.net repeatedly and have done so
again today. The lack of formality with regard to NVIDIA bug reports is
very irritating!
http://www.nvnews.net/vbulletin/showthread.php?p=2359095#post2359095
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You received this bug notification because you are a member of
The issue persists with 256.53.
This problem won't be solved through launchpad, please fell free to bump
http://www.nvnews.net/vbulletin/showthread.php?t=150069 to notify the nvidia
developers.
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Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer
function while
Changes in Maverick packages are now synced with the Ubuntu X-Swat PPA,
thank you very much! The issue is solved.
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nvidia-current-dev 256.35-0ubuntu1 conflicts with mesa-common-dev and all its
dependencies
https://bugs.launchpad.net/bugs/600397
You received this bug notification because you
This bug still affects the Ubuntu X-Swat PPA packages.
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nvidia-current-dev 256.35-0ubuntu1 conflicts with mesa-common-dev and all its
dependencies
https://bugs.launchpad.net/bugs/600397
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to
Also: Sorry, I didn't mean to subscribe the Ubuntu X-Swat team to this
bug, this seems like a rude thing to do but I can't undo it! I only
wanted to associate it with their packages.
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nvidia-current-dev 256.35-0ubuntu1 conflicts with mesa-common-dev and all its
dependencies
NVIDIA's 256.29 beta driver is available from this PPA:
https://launchpad.net/~ubuntu-x-swat/+archive/x-updates .
The issue is not solved, and I didn't expect it to be. Again, the bugs for both
NVS *100m series and FX 880M have been reported to the NVIDIA developers @
nvnews.net, the links to
Here's the lshal output from my T510 without backlight controls force-
enabled in xorg.conf:
udi = '/org/freedesktop/Hal/devices/computer_backlight'
info.addons = {'hald-addon-generic-backlight'} (string list)
info.capabilities = {'laptop_panel'} (string list)
info.category = 'laptop_panel'
Also I'm running nvidia driver version 195.36.15 . Next time I restart
this machine, I'll check for changes to lshal output caused by forcing
nvidia to control the backlight.
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Backlight controls of laptops with NVIDIA NVS and Quadro FX 880M GPUs no longer
function while using proprietary
lshal output seems to be identical when the nvidia driver is forced to
control the backlight. I agree, the nvidia driver is probably passing
the wrong number of brightness levels. Thanks for the link to bug 7779,
i'll play around wth that script later.
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Backlight controls of laptops with
Delyan, are you able to force the NVIDIA proprietary driver to control
the backlight? You can do this by adding
Option RegistryDwords EnableBrightnessControl=1
to the Devices section of xorg.conf and then restarting. Also, does
your backlight emit a buzz or humming noise when the brightness has
** Summary changed:
- Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
+ Backlight controls on ThinkPad T510 and W510 no longer function when using
proprietary drivers
** Description changed:
- The brightness controls on this laptop with NVS 3100m work
** Changed in: nvidia-graphics-drivers (Ubuntu)
Status: Confirmed = In Progress
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Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you are a member of Ubuntu-X,
which
I have created a thread about this bug at nvnews.net, where NVIDIA
developers often respond to user issues:
http://www.nvnews.net/vbulletin/showthread.php?p=2240345#post2240345
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Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
** Tags added: t410
** Tags removed: w510
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Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers in
** Attachment removed: dmidecode output from t510 4313CTO
http://launchpadlibrarian.net/44387565/dmidecode.t510.txt
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Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you
Also, dmesg reports that thinkpad_acpi's backlight controls are not
enabled, so it is certainly not controlling the backlight in the VT:
thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control,
supported by the ACPI video driver
thinkpad_acpi: Standard ACPI backlight
I can now force the nvidia driver to control the backlight. I don't know
why it didn't work before, I did 2 hard reboots and the setting didn't
take effect. Regardless, the nvidia's backlight controller is still less
effective than the one used by nouveau or in a text mode VT. The nvidia
driver's
I have no idea how to effectively monitor changes in /sysfs. The best
method i'm using is to use tree to map out Sysfs, and then search for
interesting things and monitor them. If someone could please share a
better method i'd be very appreciative.
I have not found if there is a difference in
** Attachment added: dmidecode output from t510 4313CTO
http://launchpadlibrarian.net/44387565/dmidecode.t510.txt
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Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you
** Changed in: nvidia-graphics-drivers (Ubuntu)
Status: New = Confirmed
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Backlight controls on ThinkPad T510 no longer function when using proprietary
drivers
https://bugs.launchpad.net/bugs/562005
You received this bug notification because you are a member of Ubuntu-X,
which is
Public bug reported:
The brightness controls on this laptop with NVS 3100m work while running
Nouveau or when using a text mode VT, but not while running X and using
proprietary NVIDIA drivers. About 3 weeks ago it was possible to force
the nvidia driver to control the backlight by adding [Option
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/43989223/BootDmesg.txt
** Attachment added: CurrentDmesg.txt
http://launchpadlibrarian.net/43989224/CurrentDmesg.txt
** Attachment added: Dependencies.txt
http://launchpadlibrarian.net/43989225/Dependencies.txt
**
I apologise for having posted this report with a less-than-minimal
xorg.conf . I have ensured that none of those options affect this
problem.
** Summary changed:
- Backlight brightness on ThinkPad T510 can only be changed in Text Mode, not X
+ Backlight controls no longer function on ThinkPad
Plymouth causes blank screen with nVidia Quadro NVS 3100m on Lenovo
ThinkPad T510. Display functions normally after X loads.
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Lucid Alpha3 live cd failing to boot properly, monitor powers off during boot.
https://bugs.launchpad.net/bugs/529563
You received this bug notification because you
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