It seems this is a recurring issue, see #855199 and #993425. The problem is that the irqfixup code gets broken. There is of course an underlying problem of spurious interrupts but booting with the irqpoll option should handle this. It worked for awhile but seem to have reoccured from at least kernel 3.2.0-39 in precise, possibly earlier.
I am now running quantal 3.5.0-27 and the problem remains. If the wrong IRQ gets disabled the system gets sluggish and needs rebooting. It is extremely frustrating. I am running an AMD Fusion board. For example of my dmesg output see #993425. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1082304 Title: Kernel error causing mouse "slow down" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1082304/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
