Public bug reported:
I've just upgraded to Kubuntu 12.04 and I've noticed that an opengl
application I'm developing failed to work. Among the problems,
rendering has since become terribly slow, even with nvidia proprietary
drivers, and the opengl rendering screen sometimes turns black.
As a test, I've turned on KDE's desktop effects. Once I did that and
restarted KDE, the desktop became excruciatingly slow and the desktop's
background became black.
This leads me to suspect that something with opengl isn't working since
the upgrade, and this is a bit of a showstopper.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/990862
Title:
opengl ceased to work properly since upgrade to 12.04
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