Brightness keys not working on Openbsd

KonkyBonky

Hello I've been using OpenBSD on my thinkpad t450 for a while, but I have an issue, whenever I press the backlight buttons, or invoke xbacklight through the terminal, the backlight of the display goes all the way down. I've been using intel_backlight_fbsd and it does change the brightness, but I would prefer to use the xbacklight method, does anyone have any insight?

dmesg

Xorg.0.log

Any help would be appreciated.

rvp

KonkyBonky Can you try the modesetting Xorg video driver instead of intel?

KonkyBonky

rvp Tried to no effect, here is my new Xorg.0.log if that helps

rvp

KonkyBonky This is a kernel issue. The kernel is suppose to trap these WMI keys and change the brightness on its own, and if it doesn't, pass the key up to userspace (like the NetBSD kernel does) so that something can be done there.

Run xev -event keyboard and find out what keysyms are being sent. These should look like XF86...BrightnessUp/XF86...BrightnessDown. Then, you can trap those keysyms either in the WM, or using a program like xbindkeysand run commands to change the brightness.

KonkyBonky

rvp the brighness keys arent the issue, even when I use xbacklight in the terminal, no matter the number I give to set, increase or decrease the brightness, the brightness goes all the way down.

rvp

KonkyBonky no matter the number I give to set, increase or decrease the brightness, the brightness goes all the way down.

Kernel issue, I think--report it. But, you said intel_backlight worked, so you can hook that up to the WMI keys instead.

KonkyBonky

rvp will do, thanks for your help