[mythtv-users] VAAPI / OpenGL and myth 0.26 - black screen on playback

[Gary Buhrmaster]

On Fri, Oct 4, 2013 at 10:36 AM, Andrey Zhunev <a-j at a-j.ru> wrote:
.....
> Yes, you're right. In fact, I used to use NVidia GT220 before, with
> proprietary NVidia drivers. Then I took it out, and got all this mess
> with the built-in Intel video.
>
> I reinstalled all the xorg-* packages. Also the output of 'glxinfo'
> contains some interesting details. Full output is here:
> http://pastebin.com/raw.php?i=8ucGapak
>
> From what I see there, the system still tries to use 'NV-GLX' -
> something related to NVidia. The 'client glx' is also not clear:
> 'client glx vendor string: NVIDIA Corporation'
>
> There are definitely some leftovers from NVidia driver. But I don't
> know what else I should reinstall in order to get a clean system.

The nVidia distributed installer was notorious in not completely
uninstalling (reverting) the system files it replaced when requested
to uninstall itself (read the caveats in the wiki regarding nVidia
cards and VDPAU).  I guess that is still true today.

I *think* the files are going to be part of the OpenGL functions.
While it is likely still possible to pull down the installer and
manually reverse engineer what the installer is doing, it is
probably the easiest solution to just have yum reinstall all
the X and mesa packages, and then you may have to edit
the /etc/ld.so.conf file (or /etc/ld.so.conf.d/* files) to remove
any traces of the nVidia directories.  In some recent versions
they are named like /usr/lib[64]/nvidia<something>.

There is always the reinstall solution (and blame it on nVidia).

Gary