Same/Similar problem here, interestingly the resets happen exactly every 30 or 60min. The USB harddrive still works as normaly, but the reset wakes it up out of being suspended which can get a little annoying.
/var/log/messages.1:Nov 24 00:35:04 localhost kernel: [32462.112023] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 01:35:04 localhost kernel: [36062.104030] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 02:35:04 localhost kernel: [39662.112026] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 03:35:04 localhost kernel: [43262.101674] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 04:35:04 localhost kernel: [46862.112027] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 05:35:04 localhost kernel: [50462.116031] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 06:35:04 localhost kernel: [54062.118087] usb 2-2: reset high speed USB device using ehci_hcd and address 4 /var/log/messages.1:Nov 24 07:05:04 localhost kernel: [55862.100021] usb 2-2: reset high speed USB device using ehci_hcd and address 4 -- USB-Harddisk resets after about 30 minutes https://bugs.launchpad.net/bugs/474823 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