Monday, October 15, 2007

Ubuntu Gutsy + ATI + Suspend workaround

The latest release of Ubuntu (Gutsy) which is in beta testing right now has a problem where laptops with ATI graphics cards will hard hang when you attempt to suspend.  The screen goes blank but the suspend light (usually a moon or something) just flashes forever.

Here is bug with the insanely long bug comment thread:

http://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/121653/

Here is the workaround:

Create this file:
   /etc/modprobe.d/blacklist-fglrx

Put this in it:
   blacklist fglrx

Reboot. 

This will allow you to continue to use the fglrx X.org driver but without the kernel module which causes the problem with suspend. .  This means you get 2D acceleration but not 3D.  So no cool Compiz eye candy.  But at least you can put your laptop to sleep.


1 comment:

Bao-Long said...

Awsome. That worked great for me. It has been bugging me for a while.