Is the solution that i can't upgrade again forever?
Which video driver are you using? Are read what wrote above. It gives you good
hints what to do.
I am using the original NVIDIA-_Linux-x86_64-260.19.21driver, because
the standard driver has not offered openGL.
Is there an alternative original debian package?
(If yes - how can i remove the original driver?)
Maybe it would help to reinstall the original driver when compositing fails.
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