https://bugs.freedesktop.org/show_bug.cgi?id=28402
--- Comment #62 from Lukas Schneiderbauer lukas.schneiderbauer@gmail.com 2010-09-09 06:27:12 PDT --- (In reply to comment #60)
However, I don't know, if this influenced the kernel behaviours during the patch tests, but I will remove this line and see, if something changes.
I removed this line and experienced a sudden freeze after X-restart and firefox-start. Could you please add this option to your xorg.conf and see and test this case?