после старта системы вижу такое:
$ sudo cat /var/log/messages | grep -i error
Aug 30 09:03:20 turbid-pc kernel: [ 1.529688] usb-storage: probe of 1-3:1.2 failed with error -1
Aug 30 09:03:20 turbid-pc kernel: [ 1.530694] usb-storage: probe of 1-3:1.3 failed with error -1
Aug 31 00:38:43 turbid-pc kernel: [ 1.529698] usb-storage: probe of 1-3:1.2 failed with error -1
Aug 31 00:38:43 turbid-pc kernel: [ 1.530698] usb-storage: probe of 1-3:1.3 failed with error -1
Aug 31 00:47:06 turbid-pc kernel: [ 513.049873] saa7134[0]/irq: looping -- clearing PE (parity error!) enable bit
Aug 31 07:05:58 turbid-pc kernel: [23245.185409] usb-storage: probe of 1-3:1.0 failed with error -1
Aug 31 07:06:06 turbid-pc kernel: [23252.973512] usb-storage: probe of 1-3:1.2 failed with error -1
Aug 31 07:06:06 turbid-pc kernel: [23252.974501] usb-storage: probe of 1-3:1.3 failed with error -1
Aug 31 23:59:19 turbid-pc kernel: [ 1.529546] usb-storage: probe of 1-3:1.2 failed with error -1
Aug 31 23:59:19 turbid-pc kernel: [ 1.530422] usb-storage: probe of 1-3:1.3 failed with error -1
То что usb - это, судя по всему, 3g-мопед Huawei 160G, а saa7134 - тюнер beholder. И первое и второе работают в штатном режиме. Ведро 2.6.30 из Debian sid.