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

[Alexandre Gorelov]

In fact, NVIDIA chips are used very often for onboard graphics.

Alexandre Gorelov
TRIUMF
tel. (604)-222-1047, ext. 6489


Frederick Jones wrote:
> Hi Konstantin,
> Thanks for your comments.
> The use of nvidia drivers may explain why this problem
> has not been seen very much.
> The machines I have dealt with do not have nvidia
> graphics (I wish they did).  They are just using
> whatever cheap graphics chips are on the motherboard.
> Cheers,
> Fred
>
> Konstantin Olchanski wrote:
>> On Tue, Feb 14, 2012 at 01:17:25PM -0800, 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.
>>>
>>
>> Fred - we have seen trouble with glxgears, too (through Femlab, G4&  co).
>>
>> My solution is to install NVidia proprietary drivers which happen
>> to install OpenGL libraries that seem to work just fine.
>>
>> I have done this on desktop machines with NVidia graphics,
>> on server machines with no graphics (only the Nvidia OpenGL libraries
>> are used, kernel and x11 drivers are not used); but did not try
>> this on any machine with ATI graphics (I would expect a conflict
>> between ATI and NVidia proprietary drivers.
>>
>> I do not know if the ATI proprietary drivers come with usable OpenGL libraries.
>>
>>
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