Comment 9 for bug 374284

purged the machine of all RT kernel images and modules, then reinstalled using "aptitude install linux-rt" and it seemed to work, the machine rebooted and was reasonably speedy until I tried to enter text into this form, then it started to slow down dramatically; I tried to test the playback of a youtube page, but didn't get very far -- on entering text into the firefox location bar, the CPU halted, no ctrl-alt-del, no response from the off switch.

so something is desperately wrong with the RT kernel in the Jaunty environment. don't know if drm or the radeon modules were loaded, but I think they must have been to have given the good performance for the first few minutes of us (in the situation that started this ticket, performance was bad right from the login and even in svga mode)