https://bugs.freedesktop.org/show_bug.cgi?id=38478
Stephen Kitt steve@sk2.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |INVALID
--- Comment #6 from Stephen Kitt steve@sk2.org 2011-08-13 16:06:22 PDT --- I've just figured out what was going on - I noticed after rebooting (to check whether the bug was fixed in 3.0) that the IRQ used by my Radeon card was disabled. It's shared with some of the USB ports and an interrupt arrives before all the drivers have initialised correctly. Reloading the uhci-hcd module re-enables the interrupt and restores full functionality!