[+amd-glx, +lkml, +dri-devel] On 27.07.24 18:52, serg.partizan@xxxxxxxxx wrote: > > After updating from 6.8.9 to 6.9.1 I noticed a bug on my HP Envy x360 > with AMD Ryzen 5 4500U. > > [...] > After waking up from sleep brightness is set to max level, ignoring > previous value. > > With the help of Arch Linux team, we was able to track bad commit to > this: > https://gitlab.freedesktop.org/agd5f/linux/-/commit/63d0b87213a0ba241b3fcfba3fe7b0aed0cd1cc5 Hamza Mahfooz, in case you missed it, that is a patch of yours: 63d0b87213a0ba ("drm/amd/display: add panel_power_savings sysfs entry to eDP connectors") [v6.9-rc1]. > I have tested this on latest mainline kernel: > > Results after waking up: > >> cat /sys/class/backlight/amdgpu_bl1/{brightness,actual_brightness} > 12 > 252 > > Then, on exact this commit (63d0b87213a0ba241b3fcfba3fe7b0aed0cd1cc5), > result is the same. > > Then, on commit just before this one (aeaf3e6cf842): > >> cat /sys/class/backlight/amdgpu_bl1/{brightness,actual_brightness} > 12 > 12 > > I hope I included all relevant information, more info can be found here: > > https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/issues/52 Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page. P.S.: #regzbot introduced: 63d0b87213a0ba241
