Here are my specs:
OS - Ubuntu 20.04.1 LTS 64-bit
Device - iMac mid 2011 21.5 inch
Processor - Intel® Core™ i5-2400S CPU @ 2.50GHz × 4
Graphics - AMD® Turks / AMD® Turks
Screen - 1920 by 1080 pixels
I have switched off auto adjust, and moving the slider does not adjust screen brightness. It remains the same. Luckily, it has been fixed at a kind of medium brightness, so it's neither too bright nor too dark, but I would obviously like to be able to adjust it. Is there a fix to get control functionality working, as opposed to having to use commands?
Beware that I'm not too command/linux savvy.
Thanks in advance to any answers!