I've found this forum thread: https://forums.developer.nvidia.com/t/solus-nvidia-gtx-1070-brightness- control-not-working/54472
If I understand correctly, the OP resolved his issue by setting the kernel boot parameter nvidia.NVreg_EnableBacklightHandler=1 This did not solve the issue for me, however. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1720438 Title: brightness control broken nvidia To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-power/+bug/1720438/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs