Thank you for the detailed report. Could you please provide the
following?
- From a boot where the problem occurred, open a terminal and copy and
paste the command below. It will save the complete kernel log as
dmesg.txt in your home folder. After the command finishes, attach that
file to this bug:
sudo dmesg > ~/dmesg.txt
- While running an affected Ubuntu kernel, open a terminal and copy and
paste the command below. It will add the diagnostic information directly
to this report:
apport-collect 2161148
This issue looks to be much alike
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161309, would you
mind looking at comment #4 and #10 and possibly doing a few more checks?
You'll need to revert any boot line params you have added and update
grub to I can have a clear picture whether you are hitting exactly the
same issue. Thanks!
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Krystian Kaniewski (kkaniewski)
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https://bugs.launchpad.net/bugs/2161148
Title:
[SRU] intel_backlight (i915/eDP AUX-DPCD) stops responding to live
brightness writes in 7.0.0-28-generic (works in 6.17.0-40-generic)
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