[Pkg-systemd-maintainers] Bug#738799: systemd: Somehow systemd breaks compositing OpenGL graphics

[Michael Biebl]

severity 738799 normal
thanks

Am 13.02.2014 01:54, schrieb Salvo Tomaselli:
> Package: systemd
> Version: 204-7
> Severity: critical
> Justification: breaks unrelated software
> 
> Dear Maintainer,
> 
> I know this is very very strange, I promise I will do my best to provide the
> requested information.
> 
> I normally use kwin, OpenGL 2.0, Native (not raster).
> 
> By just changing sysv to systemd, kwin will automatically fall back to
> XRender, if I manually set it back to OpenGL 2.0 it will inform me that
> some effects (that work just fine when using sysv) are not available, so
> I will not be able to reverse colours, and a few other things.

You are most likely missing access rights to the dri device.
What's the output of
getfacl /dev/dri/card0

> Versions of packages systemd recommends:
> pn  libpam-systemd  <none>

libpam-systemd ensures proper ACLs are setup for those types of devices.
You really should trust the package maintainers and install recommends
unless you have a really good reason not to and you know what you are doing.

Michael

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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