I am seeing this on my system with a Radeon HD 4250 and I have the updated version of both xserver-xorg-video-radeon and xserver-xorg- video-ati installed.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1100286 Title: [drm:radeon_cs_ib_chunk] *ERROR* Failed to schedule IB ! Status in X.org XServer - ATI gfx chipset driver: Fix Released Status in “xserver-xorg-video-ati” package in Ubuntu: Confirmed Bug description: Problem : On boot my computer is perfect for a few minuts, then my screen start to panic and finally totaly freeze. Graphic card : VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Manhattan [Mobility Radeon HD 5430 Series] Driver : xserver-xorg-video-ati How to reproduce : Booting on Ubuntu Raring Ringtail 13.04 Syslog : [drm:radeon_cs_ib_chunk] *ERROR* Failed to schedule IB ! To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/1100286/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp