As it says in the title, I am trying to get screen brightness controls working (ideally via the built in keyboard buttons on the laptop). Thanks in advance for any help.
I am running Tumbleweed (updated today) on a new Thinkpad X1 Extreme (4K). I have turned on discrete graphics in bios (rather than “hybrid” graphics) so I should be using only the Intel graphics and not the NVIDIA card, although that is all that I see in lspci:
# lspci | grep -i vga 01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] (rev a1)
# modinfo nvidia filename: /lib/modules/4.19.11-1-default/updates/nvidia.ko alias: char-major-195-* version: 410.78 supported: external license: NVIDIA suserelease: openSUSE Tumbleweed srcversion: E6823ED882C76894D74F1C2 alias: pci:v000010DEd00000E00sv*sd*bc04sc80i00* alias: pci:v000010DEd*sv*sd*bc03sc02i00* alias: pci:v000010DEd*sv*sd*bc03sc00i00* depends: ipmi_msghandler name: nvidia vermagic: 4.19.11-1-default SMP preempt mod_unload modversions
I don’t have anything in “/sys/class/backlight” nor do I have any plausible “backlight” or “brightness” files/directories in “/sys/”
“xbacklight -g” reports “No outputs have backlight property”
I have tried updating grub with ether