I try my best to understand (though I don't really understand :)) the command(s) that I should execute.
Hope following result helps (I ran it while printer unplugged) : $ dmesg | grep usb [ 0.874558] usbcore: registered new interface driver usbfs [ 0.874558] usbcore: registered new interface driver hub [ 0.874558] usbcore: registered new device driver usb [ 1.482878] usbcore: registered new interface driver libusual [ 1.772030] usb 1-6: new high-speed USB device number 2 using ehci_hcd [ 21.968792] input: CNF9012 as /devices/pci0000:00/0000:00:1a.7/usb1/1-6/1-6:1.0/input/input5 [ 21.968902] usbcore: registered new interface driver uvcvideo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1159358 Title: USB Printer & HDD external can't wake up after a moment of time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1159358/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs