I'm guessing the user has/had an nvidia graphics card. It sounds like a known problem with a fairly easy workaround. See the following link:
http://www.nvnews.net/vbulletin/showthread.php?t=131221 In short, the XVideo settings get zeroed. I personally suspect the culprit is actually nvidia-settings and users perhaps have this run as part of their login sequence. I only saw the problem after I had run nvidia-settings (it had been working fine for me before that). The easy workaround is to start nvidia-settings, go to the "X Server XVideo Settings" item and you will probably see contrast, hue and saturation all set to zero. Click on the "Reset Hardware Defaults" button, contrast and saturation will change to 4096 and your picture will instantly appear. HTH. -- mplayer unable to play DV avi files https://bugs.launchpad.net/bugs/240348 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs