I have an RPi 3b running Arch Linux.
I'm attempting to run Redshift:
redshift -O 3300
The output is:
Gamma ramp size too small: 0 Failed to start adjustment method randr. Trying next method... Using method 'vidmode'.
Nothing happens! The Arch Arm Wiki says:
The X.org driver for Raspberry Pi can be installed with the xf86-video-fbdev or xf86-video-fbturbo-git package.
Both are installed, I've alternated removing and reinstall them. No luck. Any advice? Redshift has become essential these days. :D