[Bug 49531] Powering down inactive GPU while running X causes NULL pointer dereference

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=49531





--- Comment #7 from Matthieu Baerts <matttbe at gmail.com>  2013-02-17 13:07:48 ---
Created an attachment (id=93461)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=93461)
Kernel Oops with version 3.8-rc7

Hello,

I also have this crash with the version 3.8-rc7 on Ubuntu Raring 13.04.

I added this line in my /etc/rc.local file:
   echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

I don't have this crash each time at startup but I guess it depends if the
previous command is launched before or after that X11's launch.

I'm using this card: Mobility Radeon HD 4650

I'm attaching a file with lines from /var/log/kern.log

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