Try typing this command in a terminal
xgamma -gamma 0.75
I have posted my own solution here:
http://ubuntuforums.org/showthread.php?p=4168042#post4168042
Try typing this command in a terminal
xgamma -gamma 0.75
I have posted my own solution here:
http:// ubuntuforums. org/showthread. php?p=4168042# post4168042