Showing results for 
Search instead for 
Did you mean: 
New member
1 0 0 0
Message 1 of 2
Flag Post

Cannot change brightness with Fn+F3 and Fn+F4 on linux (Ubuntu 20.4) on Elitebook 840 G6

HP Recommended
Elitebook 840 G6
Ubuntu LTS

I have the same problem described here:

Fn+F3, Fn+F4 and Fn+F8 still return the same keycode. (Mute/unmute microphone)

I am on the latest available bios version to date 2021.january.18 (updated via windows).

Please help with this issue.

Level 19
Level 19
91,951 91,832 11,857 25,324
Message 2 of 2
Flag Post
HP Recommended



On Windows, you don't need to gold Fn key. Hotkeys driver only works on Windows.





**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

0 Kudos
Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation