I can confirm this bug using Ubuntu 10.04 on a HP Compaq 6715s with a Radeon X1200. The screen freezes except the cursor. In tty(x) the above posted error message keeps rolling. Me as well I had the impression this was connected to a certain homepage I opened in Firefox, can't be sure though. I haven't made any upgrades.
Very annoying since the only 'solution' is a brutal restart. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/586243 Title: Xorg freeze: "Failed to schedule IB" Radeon X1200 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs