Public bug reported:
Binary package hint: totem
A few people have encountered totem suddenly (after an upgrade)
displaying weird colors or just a black window.
This was caused by a "contrast" preference setting in totem changing to
"0" after the upgrade (instead of the default "midscale").
The issue here is not that the contrast setting suddenly changed, but
that totem seems to leave its contrast settings somewhere in the
hardware resulting in other players like mplayer and vlc also displaying
weird colors (with the open source driver) or a black window (with the
proprietary video driver).
My analysis is that totem sets up some sort of pixel-processing
pipeline, that includes its contrast pipeline. You could accuse mplayer
and vlc of not properly initializing that pipeline because they seem to
use totem's. But I think they simply don't use that feature, so they may
not know about it. I think that totem should leave the hardware as it
found it, and properly set the pipeline back to its original state.
This was a friends system. I think it has an NVIDIA video card (onboard,
AMD X3 processor).
** Affects: totem (Ubuntu)
Importance: Undecided
Status: New
--
Totem changes system video hardware.
https://bugs.launchpad.net/bugs/615235
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