Thanks for the bug report. That kernel looks old and should have been
updated by now. Please try:
sudo apt install linux-generic-hwe-22.04
and reboot.
** Summary changed:
- I cannot change or control display brightness
+ [Lenovo LOQ 15ARP9] I cannot change or control backlight brightness
** Package changed: xorg (Ubuntu) => linux-hwe-6.2 (Ubuntu)
** Changed in: linux-hwe-6.2 (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/2078814
Title:
[Lenovo LOQ 15ARP9] I cannot change or control backlight brightness
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