Good time of day everyone!
I'm facing this problem with my Ubuntu 12.04.1 and a new ViewSonic monitor. The trouble is that the monitor has it's default gamma value set too high and there is no way I can adjust it by monitor hardware controls.
So far I've been using the
xgamma -gamma .75 command to get a comfortable picture. The problem is that after the system is locked or after I go to the "Switch User" menu gamma is reset back to 1.0 level. What can I do to adjust it once and for all?
UPD: I tried to use
lprof to create a new
*.icm and to load it with
gnome-color-manager, but I don't see any difference between the new and the default one. I don't even know if the profile had been applied correctly.