I am trying to convert from Ubuntu to OpenSUSE, and I am liking it so far. But I am having difficulty with the screen brightness. I cannot change it via the brightness app (through the battery icon) or through my function keys. When I press the function keys, the brightness icon appears and the bar moves up and down appropriately, but the brightness does not actually change. I’ve tried adding the following to /usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device" Identifier "card0" Driver "intel" Option "Backlight" "intel_backlight" BusID "PCI:0:2:0" EndSection
But when I reboot, the graphical component does not load, and I have to log in via CLI and remove that file before I can proceed. I’ve also tried adding /usr/share/X11/xorg.conf.d/20-intel.conf with the following content:
Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "sna" Option "Backlight" "intel_backlight" # intel instead of acpi_video0 BusID "PCI:0:2:0" EndSection
It had the same result. I also tried adding /usr/share/X11/xorg.conf.d/80-backlight.conf with these contents:
Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "sna" Option "Backlight" "intel_backlight" # use your backlight that works here BusID "PCI:0:2:0" EndSection
Again, the same result. It would not fully reboot until I removed that file.
I’ve also tried editing the GRUB entry in /etc/default/grub as follows:
After rebooting, I saw no change in the behavior.
Here is my kernel information
> uname -a Linux linux-dkbi 4.4.87-25-default #1 SMP Wed Sep 13 07:19:13 UTC 2017 (3927ef5) x86_64 x86_64 x86_64 GNU/Linux
Please let me know if there is anything else I can provide that will help in resolving this. Your help is greatly appreciated.
Btw, this does work for changing the brightness:
sudo echo 1000 > /sys/class/backlight/intel_backlight/brightness