Any suggestions on how to debug this problem? I have tried using powertop to see the interrupt usage. With no USB devices plugged in, my machine shows about 450 ehci_hcd interrupts per second. When I unload the ehci_hcd module these interrupts stop. This is all with boot parameters "noapic noirqdebug". My machine still won't boot without those parameters.
-- HP Pavilion dv6103eu laptop - all Ubuntu versions gets frozen during X startup until I specify "noapic" boot option https://bugs.launchpad.net/bugs/89746 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs