If your Linux video is playing back with green tints (MPlayer, VLC, Totem, etc) then your XV_HUE settings may have somehow got scrambled. I think mine became scrambled when I updated to Ubuntu 9.10, but I am not sure. I currently run under NVidia drivers.

Before doing anything else, please check your monitor cable, both ends. Make sure the cable is plugged in firmly. If you have a spare cable test that as well. A bad monitor cable can cause all kinds of color and flicker issues.

To see if it is an X-Windows HUE issue try the following and if this works then hues are probably the issue.

mplayer -vo gl video-file-name

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