This still happens in a fresh install of 19.10 with discrete-only
graphics (Nvidia enabled, Intel disabled in BIOS) and with the nvidia
driver.
Backlight control works when booting with the 19.10 live iso which the
uses nouveau driver.
--
You received this bug notification because you are a
Does this still happen on an up-to-date system?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
Status in linux package in
I can reproduce this bug on my ThinkPad p51, this is a new bug in 18.10.
Any progress?
** Changed in: linux (Ubuntu)
Status: Expired => New
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
I did some testing: deactivated the dedicated graphics in the bios,
booted to ubuntu 18.04 and 18.10 (installed parallel) and both worked.
Though with the dedicated graphics enabled (nvidia) the brightness does
not work...
--
You received this bug notification because you are a member of Kernel
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
ping Michael and Urschl
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on
Not familiar with Thinkpad laptops, does it only show backlight sysfs
with thinkpad-acpi.brightness_enable=1?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not
The directory `/sys/class/backlight` is empty.
However, on my 16.04.3 system -- where the backlight works just fine --
this directory is also empty.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
Does change the value of /sys/class/backlight/thinkpad_screen/brightness
change the brightness?
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness
> Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
I can not say if brightness controls worked immediately after installing
the system. However, they were definitely broken after installing a few
standard
Did this issue start happening after an update/upgrade? Was there a
prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.15
This bug also affects me
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
Status in linux package in Ubuntu:
Confirmed
Bug
apport information
** Tags added: apport-collected
** Description changed:
I can not modify the screen brightness in Ubuntu 17.10. Controls aside,
the classes in `proc` are either not available or non-functional
depending on what arguments I provide in GRUB_CMDLINE_LINUX_DEFAULT.
On
** Package changed: ubuntu => linux (Ubuntu)
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
Status in linux package in Ubuntu:
14 matches
Mail list logo
