[kde-freebsd] No opengl desktop effects after xorg-server update
nolden at kde.org
Thu Oct 22 10:54:40 UTC 2015
Am Donnerstag, 22. Oktober 2015, 10:54:48 schrieben Sie:
> Ralf Nolden <nolden at kde.org> writes:
> > Am Mittwoch, 21. Oktober 2015, 23:53:25 schrieb Bengt Ahlgren:
> >> Bengt Ahlgren <bengta at sics.se> writes:
> >> > After the xorg-server update to 1.17, KDE is not able to make use of
> >> > opengl for desktop effects. Only xrender works.
> >> >
> >> > The system is running 9.3-RELEASE-pX, using the nvidia proprietary
> >> > driver, with my own poudriere-compiled packages.
> >> >
> >> > Any ideas? KDE issue or xorg issue?
> >> This turned out to be due to that Xorg 1.17 per default disables
> >> indirect glx, while earlier versions didn't. Kwin apparently didn't
> >> properly detect direct opengl with the nvidia driver, and silently fell
> >> back to indirect glx. Setting KWIN_DIRECT_GL=1 in the environment fixed
> >> the issue!
> > HI,
> > that means you didn't recompile xorg and setting the environment uses the
> > NVIDIA driver ?
> Right, I did not recompile - xorg-server (and nvidia-driver) were
> compiled with default settings. KWIN_DIRECT_GL is a runtime knob.
> > Maybe someone with access to the website could add a small HOWTO on this
> > issue>
> > :)
> The issue isn't present with the intel driver, so it might be nvidia
> only. Previously, with nvidia driver and xorg-server 1.14, I always got
> a core file from kwin_opengl_test in my home directory. With
> KWIN_DIRECT_GL set in the env, this does not happen.
I have the same file :))
Thanks for the hint. A similar knob is KDE_FORK_SLAVES for using virtualbox'
file open dialog.
Maybe this should somehow really be documented on the website....
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