Can't control gamma/brightness from ioquake3 menu/console


Running ioquake3 1.36 on Linux Mint. The game is quite dark, even during the intro video. The in game brightness slider on the options menu does nothing. The r_gamma command does nothing, even after a vid_restart.
I am using the official AMD drivers for my video card.

Anyone have a workaround for me? (except adjusting brightness values on my display every time I want to play).

Please upgrade to a test build. It may resolve the issue.

I am having this problem , i have upgraded to the latest test build.

I work around this by using the xgamma command in ubuntu before starting up quake to brighten the display eg.:-

xgamma -gamma 1.4

then setting it back afterwards