The problem was indeed related to the "Too much work for IRQ 3" message I received during boot of the -generic kernel. Switching the Infrared in BIOS from IRQ3 to IRQ4 solved all my problems! I will therefore re- close.
** Changed in: linux-source-2.6.22 (Ubuntu) Status: Confirmed => Fix Released -- Gutsy hangs at boot with COMRESET failed error (kernel 2.6.22-13 and 2.6.22-14) https://bugs.launchpad.net/bugs/150259 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs