https://bugzilla.kernel.org/show_bug.cgi?id=216921
Bug ID: 216921
Summary: Xiaomi Redmi Note 14 2022 notebook backlight brighness
control does not work
Product: ACPI
Version: 2.5
Kernel Version: 6.1.5
Hardware: AMD
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
Assignee: acpi_power-vi...@kernel-bugs.osdl.org
Reporter: xxx...@mail.ru
Regression: No
Created attachment 303589
--> https://bugzilla.kernel.org/attachment.cgi?id=303589&action=edit
dmesg
Xiaomi Redmi Note 14 2022 notebook backlight brighness control does not work
with /sys/class/backlight/acpi_video0 correctly initialized (but it worked on
5.19 kernel).
Using KDE tools or manually setting /sys/class/backlight/acpi_video0/brightness
does nothing.
xrandr output brightness works fine.
KUbuntu 22.04
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