[elrepo] Update to kmod-nvidia-331.20-1.el6.elrepo.x86_64 breaks 3D support (SOLVED)

[B.J. McClure]

On 11/13/2013 06:36 PM, Phil Perry wrote:
> On 13/11/13 23:26, B.J. McClure wrote:
>> On 11/13/2013 06:03 PM, B.J. McClure wrote:
>>> On 11/13/2013 05:49 PM, Phil Perry wrote:
>>>> On 13/11/13 22:38, B.J. McClure wrote:
>>>>> Replying to my own post, looking at /var/log/Xorg.0.log shows glx
>>>>> module
>>>>> is not loading and the sim link to
>>>>> /usr/lib64/xorg/modules/extensions/nvidia/libglx.so.331-20 is broken.
>>>>> Repairing the symlink should fix it.
>>>>
>>>>
>>>> Strange, you are the second person to report this.
>>>>
>>>> http://elrepo.org/bugs/view.php?id=425
>>>>
>>>> I am unable to replicate the issue - the symlink is fine on my system
>>>> after updating.
>>>>
>>>> $ ll /usr/lib64/xorg/modules/extensions/nvidia/
>>>> total 9588
>>>> lrwxrwxrwx. 1 root root 16 Nov 8 16:18 libglx.so -> libglx.so.331.20
>>>> -rwxr-xr-x. 1 root root 9815912 Nov 8 15:52 libglx.so.331.20
>>>>
>>>> Did you reboot after updating the nvidia drivers? That was the cause
>>>> of the issue for the previous report.
>>>>
>>>> Phil
>>>>
>>>>
>>> Yes, I did reboot and now I have fixed the broken symlink and the
>>> libglx.so.331.20 module now loads.  The GUI now shows compiz thinks
>>> there is 3D support but there are none of the wobbly windows or cube
>>> effects working.
>>>
>>> In var/log/Xorg.0.log I see some error messages that appear to say the
>>> monitors do not support "Nvidia 3D stereo".  Not sure exactly what it
>>> is trying to tell me but the monitors functioned well with 3D and
>>> previous kmod-nvidea-325.15.
>>>
>>> B.J.
>>>
>> Replying to my own post again. ;-/
>>
>> I disabled compiz settings in System>Preferences>Desktop Effects
>> followed by Ctrl-Alt-Backspace.  Then went back to
>> System>Preferences>Desktop Effects, reselected compiz and wobbly windows
>> as well as windows on a cube and everything works again.  Guess I will
>> call this solved and wait for the next episode.
>>
>> B.J.
>
> Glad you got it working and thanks for posting back.
>
> Is this the first time you've updated with desktop effects enabled? 
> I've never tested the packages with desktop effects so can't really 
> offer much insight here.
>
> Phil
>
>
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No, I have updated the kmod-nvidia package at least a couple times on 
this same hardware with no change in desktop effects.  I have had the 
broken symlink issue on each update but with different symptoms.  On 
previous occasions the GUI fails to come up at all as a result of 
failure to load libglx.so.  The latest update did not kill the GUI but 
did apparently kill desktop effects.

B.J.