[Triumf-linux-managers] Is your OPENGL broken?

[Frederick Jones]

Recently the following happened on geant4 and lin26:

1. The yum updates were magically turned back on
    (previously they were disabled)

2. The faulty x.org distribution was re-installed.

3. There is no record of this in yum.log on either machine.

4. OPENGL is broken again.

5. I had to back out these updates as before
    and disable the yum updates again.

How can I stop this?

Is it something to do with the fact that these systems
were built from a TRIUMF kickstart disk and somehow
the updates are being forced on them?

Or, is it something to do with Scientific Linux?

Either way I am not impressed.

Cheers,
Fred

Frederick Jones wrote:
> Back in early October, x.org issued a faulty update
> to the X11 packages that causes OPENGL applications
> to fail, at least on three SL 4.x systems here at
> TRIUMF.  The fault is apparently with the X server
> itself (file "Xorg").  The fix I used was to back up to the
> previous rpms:
> 
> xorg-x11-6.8.2-1.EL.69.i386.rpm
> xorg-x11-Xdmx-... etc.
>      -x11-Xnest-
>      -x11-Xvfb-
> 
> I am not sure if this affects any SL 5.X or 6.x systems
> but would be curious to find out.
> 
> If you have a desktop Linux machine, you can check it
> by running "glxgears".  With the faulty X server it will
> fail with an X protocol error.  If it works you will see
> some spinning gears in a small window.
> Also you can check the date on the file Xorg and see if
> it was updated on around October 6 or so.
> 
> Cheers,
> Fred
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