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 Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
To manage notifications about this bug go
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 Ubuntu
Bugs, which is subscribed to 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 Ubuntu
[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 Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
ping Michael and Urschl
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
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 Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness
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 Ubuntu
Bugs, which is subscribed to 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 Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad
> 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 Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
To manage notifications about this bug go to:
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 Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1747273
Title:
Can not control brightness on Thinkpad P51
To manage notifications about this bug go to:
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people
15 matches
Mail list logo
