Mám asi podobný problém... připojení čehokoliv mi odstřihne USB myš (viz
http://forum.ubuntu.cz/index.php/topic,46664.0.html)
lsusb:
Bus 002 Device 002: ID 046d:c069 Logitech, Inc.
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
dmesg | tail -20:
[ 13.076609] skge eth0: Link is up at 100 Mbps, full duplex, flow control both
[ 13.076756] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 13.561826] CPU0 attaching NULL sched-domain.
[ 13.561833] CPU1 attaching NULL sched-domain.
[ 13.601369] CPU0 attaching sched-domain:
[ 13.601374] domain 0: span 0-1 level MC
[ 13.601377] groups: 0 1
[ 13.601382] CPU1 attaching sched-domain:
[ 13.601385] domain 0: span 0-1 level MC
[ 13.601387] groups: 1 0
[ 23.610069] eth0: no IPv6 routers present
[ 110.618680] Intel AES-NI instructions are not detected.
[ 110.646539] padlock: VIA PadLock not detected.
[ 126.408977] end_request: I/O error, dev fd0, sector 0
[ 138.489035] end_request: I/O error, dev fd0, sector 0
[ 380.549667] usb 2-7: USB disconnect, address 2
[ 382.410021] usb 2-7: new low speed USB device using ohci_hcd and address 3
[ 382.636209] usb 2-7: configuration #1 chosen from 1 choice
[ 382.651546] input: Logitech USB Laser Mouse as /devices/pci0000:00/0000:00:0b.0/usb2/2-7/2-7:1.0/input/input6
[ 382.653037] generic-usb 0003:046D:C069.0002: input,hidraw0: USB HID v1.10 Mouse [Logitech USB Laser Mouse] on usb-0000:00:0b.0-7/input0