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‎05-13-2022 12:58 PM

HP Recommended
Product: HP EliteBook 8770w Mobile Workstation
Operating System: Linux

I need help getting the brightness control to work.  My hardware is

system:
Host: 8770w Kernel: 5.13.0-41-generic x86_64 bits: 64 ; F71 BIOS
Desktop: Cinnamon 5.2.7 Distro: Linux Mint 20.3 Una

Graphics:
Device-1: NVIDIA GK104GLM [Quadro K3000M] driver: nvidia v: 390.147
Display: server: X.Org 1.20.13 driver: nvidia
unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~60Hz
OpenGL: renderer: Quadro K3000M/PCIe/SSE2 v: 4.6.0 NVIDIA 390.147

Both the Fn+f9, F10 bring up a brightness widget which can be incremented or decremented as can the task tray battery brightness control.

The problem is the brightness is at 100% regardless of the setting.  I upgraded the Kernel to 5.14 and still no luck.

Category:
2 REPLIES 2

‎05-13-2022 02:18 PM

HP Recommended

No question the brightness control is part of the video driver. I'm afraid this is something you are going to have to search out on the help boards for your Linux distro. Do you have the nVidia xserver settings app on your system? 

 

https://www.youtube.com/watch?v=MjeBfdTWFjI

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‎05-13-2022 03:02 PM

HP Recommended

Thank you for that info.  I'll look into the video and report later.

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