[kde-freebsd] No opengl desktop effects after xorg-server update

[Ralf Nolden]

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....
> 
> Bengt

-- 
Kind regards,

Ralf Nolden