Created attachment 93033 [details]
/var/log/Xorg.0.log when Xorg crash

Hello,

Step to reproduces the bug :
Watch a video on youtube.com.
Select another video to play on the suggested list (on the right of the actual video).
On 50+ % of the time, the Xorg crash : back to tty1, with an error message (see attachment)


My configuration :
Dell latitude E6400 (with Intel chipset)
Archlinux (latest version up-to-date)
Firefox 26 - HTML5 player on youtbe
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[anael@anael-arch ~]$ Xorg -version

X.Org X Server 1.15.0
Release Date: 2013-12-27
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.12.5-1-ARCH x86_64 
Current Operating System: Linux anael-arch 3.12.8-1-ARCH #1 SMP PREEMPT Thu Jan 16 09:16:34 CET 2014 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux root=UUID=14a58399-c23c-43e9-a705-24516ecc9a65 rw quiet
Build Date: 09 January 2014  08:47:24AM
 
Current version of pixman: 0.32.4
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
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Regards,
Anael