Thank you Alec and Mark. Yes it seems that it is the reason.
"xhost +" seems also to be needed to authorize x server access to users.
Is it expected?


Mark Whidby <[log in to unmask]> a écrit :

> On Wed, 2013-11-06 at 16:14 +0100, [log in to unmask] wrote:
>> Dear Scientific Linux users,
>>
>> Since few days, the computers from our lab running under SL 5.7 - 64
>> bits experience all the same bug that prevents using applications such
>> as: firefox, thunderbid, glxgears, glxinfo.
>> The update policy is based on the default configuration.
>> The bug seems to result from a recent update, maybe end of October
>> (more info on the recent updates in the enclosed yum.log).
>>
>> The easiest way to reproduce this bug is to execute glxinfo. The
>> outcome is that the screen turns black and the session restarts. Since
>> this bug was first noticed under firefox and thunderbird, a "strace"
>> was executed on those applications and it turned out that the bug was
>> labeled as "Error 104" which indicates a restart by the X server. If
>> you are interested, you may find enclosed more information.
>>
>> Has this problem been reported by other institutes or users?
>
> Did you reinstall the Nvidia driver after the update to
> xorg-x11-server-Xorg on 17/10?
>
> --
> Mark Whidby
> Infrastructure Coordinator (Unix)
> Physics/Chemistry/EAES/Mathematics Team
> IT Services, Faculty of Engineering and Physical Sciences
>



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