[Desktop-packages] [Bug 1518473] Re: /sys/class/backlight/acpi_video0/brightness is broken

I have also this problem with Clevo P775DM3. With one (big) difference, neither xbacklight nor nvidia-settings works in my case :( -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-352 in Ubuntu.

[Desktop-packages] [Bug 1518473] Re: /sys/class/backlight/acpi_video0/brightness is broken

link-dupont really nailed it! I am having the same issue on an HP Elitebook 8770w with ONLY an NVIDIA Quadro K3000M, using the proprietary driver version 387.34 on Fedora 27, Kernel 4.14.3-300 I tried all: acpi_backlight=video acpi_backlight=vendor acpi_backlight=native to no avail, so removed

[Desktop-packages] [Bug 1518473] Re: /sys/class/backlight/acpi_video0/brightness is broken

Same issue with GTX 980M on Ubuntu 16.04, even with latest NVIDIA drivers (367.27). I described this on NVIDIA forums: https://devtalk.nvidia.com/default/topic/942337/linux/backlight-brightness-not-hooked-to-acpi-events-ubuntu-16-04-/ I manually fixed it by created an acpid event handler,

[Desktop-packages] [Bug 1518473] Re: /sys/class/backlight/acpi_video0/brightness is broken

Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: nvidia-graphics-drivers-352 (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-352 in