Yes, I am booting off of an external SSD connected through USB 3.1 port
with windows on the internal SSD. Rebooting directly from Windows 10 to
5.8.0-22 kernel has no effect on changing brightness.
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Installed nvidia-driver-450 and no noticeable difference.
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https://bugs.launchpad.net/bugs/1899626
Title:
Backlight does not work on the legion 5 15arh
To manage notifications about th
Also, Kernel 5.6 mainline works perfectly until I force shutdown the
laptop (hold power button) then it breaks and gets stuck at around 90%
brightness.
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https://bugs.launchpad.net/bugs/189
I tried those parameters but there seems to be no difference. Brightness
still stuck at max.
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https://bugs.launchpad.net/bugs/1899626
Title:
Backlight does not work on the legion 5 15ar
5.8.0-22.23-generic 5.8.14
Uname: Linux 5.8.0-22-generic x86_64
ApportVersion: 2.20.11-0ubuntu49
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC1: tanapoom 1505 F pulseaudio
/dev/snd/controlC0: tanapoom 1505 F pulseaudio
CasperMD5CheckResult
I have Lenovo Legion 5 15ARH05 with Ryzen 5 4600H. I've checked that the issue
is present in Ubuntu 20.10 beta, Fedora 32 with Kernel 5.8, Fedora 33, Manjaro
with latest 5.8 kernel, opensuse tumbleweed.
On manjaro and fedora 32 with any kernel 5.6, and MX Linux backlight can be
changed at first.
