Pander, please open a new bug by running:
ubuntu-bug linux
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https://bugs.launchpad.net/bugs/1796573
Title:
Keyboard backlight not working on ubuntu 18.10, but works on
Thank you for reporting this bug to Ubuntu.
Ubuntu 18.10 (cosmic) reached end-of-life on July 18, 2019.
See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases
We appreciate that this bug may be old and you might not be interested
in discussing it any more.
I have tried that on 19.04 with kernel 5.0.0-25-generic but it did not
work. What are ways to debug this?
/sys/class/leds/asus::kbd_backlight/brightness exists and can hold a
value of 0, 1, 2 or 3. Lower than 0 results in
bash: echo: write error: Invalid argument
Values over 3 result in 3.
Try:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1806343/comments/34
?
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Title:
Keyboard backlight not working on ubuntu
Pander,
In that case we require a separate bug report from your affected laptop
to get its specific details. To do that please run this on the affected
laptop:
ubuntu-bug linux
and create a new bug.
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There are two 'versions' of this issue. One for users with
/sys/class/leds/*::kbd_backlight* and one for users missing
/sys/class/leds/*::kbd_backlight*
I do have /sys/class/leds/*::kbd_backlight* and upower 0.99.8-2ubuntu0
does not solve the issue. I can change the keyboard leds via the command
Launchpad has imported 1 comments from the remote bug at
https://bugzilla.kernel.org/show_bug.cgi?id=201359.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
Sounds like bug 1797862, if not bug 1796550.
Can you please list the files in /sys/class/leds/ and paste it here?
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Title:
Keyboard
Hello Nadav,
> When the official release will be?
https://wiki.ubuntu.com/CosmicCuttlefish/ReleaseSchedule
'October 18'
Best regards,
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Cristian Aravena Romero (caravena)
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I managed to sign vmlinuz myself and the backlight is back :)
When the official release will be?
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Title:
Keyboard backlight not
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
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Title:
Keyboard backlight not working on ubuntu 18.10, but works
** Tags removed: regression-proposed
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Title:
Keyboard backlight not working on ubuntu 18.10, but works on 18.04
Status in Linux:
** Tags added: regression-proposed
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Title:
Keyboard backlight not working on ubuntu 18.10, but works on 18.04
Status in Linux:
I can't upgrade my kernel because every time I do when I'm trying to
boot after kernel upgrade it's giving me "invalid signature" error on
vmlinuz (Maybe because I have dual boot?)
It's a brand new computer so I installed ubuntu 18.04 and upgraded it to
18.10 right after the installation, but
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
v4.19-rc7
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