I tried setting SATA to "compatible" in BIOS (instead of AHCI as it was in the reported case) and the problem went away. Dmesg attached.
** Summary changed: - weird USB and behavior ("irq 18: nobody cared"?) + SATA/AHCI related weird USB and behavior ("irq 18: nobody cared"?) ** Attachment added: "dmesg with AHCI disabled" http://launchpadlibrarian.net/11029865/dmesg -- SATA/AHCI related weird USB and behavior ("irq 18: nobody cared"?) https://bugs.launchpad.net/bugs/178072 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