I wonder if it could be something to do specifically with USB-connected HDD's, since my other devices work just fine? The controller in the drive/enclosure, perhaps? I wouldn't know where to start to look there.
I tried what Toby tried as well, without success: I had never tried actually disabling autosuspend, only unloading ehci-hcd. I applied the usbcore autosuspend module option to a file in modprobe.d/, rebuilt my initramfs, and shut down. On reboot, I tried investigating the contents of find /sys/ -name "autosuspend" && cat `find /sys/ -name "autosuspend"` on my system. All reported -1, which is autosuspend off (as was set by the usbcore module option). However, on access to my USB external hdd, the same symptoms occur - all usb activity halts. My mouse and keyboard fail to respond, and the machine they are connected to must be rebooted to bring them back up - a simple rmmod/modprobe combo doesn't do the trick to re-enable them. If I unload the ehci-hcd module, everything is as it was before I tried the fix. I can use my mouse, keyboard, and external hdd. -- ehci_hcd module causes I/O errors in USB 2.0 devices https://bugs.launchpad.net/bugs/88746 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
