xrandr brightness settings permanent

[Michal Srb]

On středa 14. listopadu 2018 21:22:28 CET Riccardo Berto wrote:
> Thanks for the answer.
> No, I don't use redshift. As far as I know, it can only happen twice
> during each Xorg start up. After these 2 times and me readjusting the
> backlight manually with the xrandr command previously posted, it stays
> that way even for a week of continued usage. It has done that for years.
> In the meantime I changed browsers, usage habits, Xorgs versions, PCs,
> GPUs, drivers, ...
> I have a keyboard shortcut with that xrandr command saved for this exact
> reason as I have to execute it up to 3 times during each session. I
> finally decided to go public with this issue as I can hardly bare the
> default minimum brightness of my "new" subpar screen.

What desktop environment are you using? I know that at least KDE/Plasma has 
its own configuration for gamma and will apply it itself on start.

Michal