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I have a USB keyboard that works fine when the system starts, but if I disconnected and then reconnected it stops working. I'd exclude a keyboard issue because I can disconnect and reconnect the very same keyboard on another machine running Ubuntu 11.10.
The keyboard is equipped with a usb hub, that is recognized when reconnected, but no trace of the input device
This is the dmesg output:
[ 2.616510] usbcore: registered new interface driver usbfs
[ 2.616527] usbcore: registered new interface driver hub
[ 2.616641] usbcore: registered new device driver usb
[ 2.619319] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.619477] ehci_hcd 0000:00:12.2: new USB bus registered, assigned bus number 1
[ 2.619571] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 2
[ 2.629662] hub 2-0:1.0: USB hub found
[ 2.629808] xhci_hcd 0000:03:00.0: new USB bus registered, assigned bus number 3
[ 2.630032] ehci_hcd 0000:00:12.2: USB 2.0 started, EHCI 1.00
[ 2.630249] hub 3-0:1.0: USB hub found
[ 2.630567] hub 1-0:1.0: USB hub found
[ 2.630868] ehci_hcd 0000:00:13.2: new USB bus registered, assigned bus number 4
[ 2.631486] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 2.640096] ehci_hcd 0000:00:13.2: USB 2.0 started, EHCI 1.00
[ 2.640211] hub 4-0:1.0: USB hub found
[ 2.640366] ehci_hcd 0000:00:16.2: new USB bus registered, assigned bus number 5
[ 2.650104] ehci_hcd 0000:00:16.2: USB 2.0 started, EHCI 1.00
[ 2.650215] hub 5-0:1.0: USB hub found
[ 2.651994] ohci_hcd 0000:00:12.0: new USB bus registered, assigned bus number 6
[ 2.707517] hub 6-0:1.0: USB hub found
[ 2.707722] ohci_hcd 0000:00:13.0: new USB bus registered, assigned bus number 7
[ 2.764192] hub 7-0:1.0: USB hub found
[ 2.764361] ohci_hcd 0000:00:14.5: new USB bus registered, assigned bus number 8
[ 2.820862] hub 8-0:1.0: USB hub found
[ 2.820990] ohci_hcd 0000:00:16.0: new USB bus registered, assigned bus number 9
[ 2.877530] hub 9-0:1.0: USB hub found
[ 2.936754] usb 1-5: new high-speed USB device number 2 using ehci_hcd
[ 3.060900] hub 1-5:1.0: USB hub found
[ 3.166745] usb 4-1: new high-speed USB device number 2 using ehci_hcd
[ 3.300597] hub 4-1:1.0: USB hub found
[ 3.406722] usb 4-3: new high-speed USB device number 3 using ehci_hcd
[ 3.610288] usb 1-5.1: new full-speed USB device number 3 using ehci_hcd
# KEYBOARD RECOGNIZED AT BOOT
[ 3.720847] input: Topre Corporation HHKB Professional as /devices/pci0000:00/0000:00:12.2/usb1/1-5/1-5.1/1-5.1:1.0/input/input0
[ 3.720905] generic-usb 0003:0853:0100.0001: input,hidraw0: USB HID v1.11 Keyboard [Topre Corporation HHKB Professional] on usb-0000:00:12.2-5.1/input0
[ 3.720920] usbcore: registered new interface driver usbhid
[ 3.720921] usbhid: USB HID core driver
[ 3.793757] usb 4-1.3: new full-speed USB device number 4 using ehci_hcd
[ 3.892329] hub 4-1.3:1.0: USB hub found
[ 4.157331] usb 4-1.3.1: new full-speed USB device number 5 using ehci_hcd
[ 4.244434] input: HID 0a5c:4502 as /devices/pci0000:00/0000:00:13.2/usb4/4-1/4-1.3/4-1.3.1/4-1.3.1:1.0/input/input1
[ 4.244491] generic-usb 0003:0A5C:4502.0002: input,hidraw1: USB HID v1.11 Keyboard [HID 0a5c:4502] on usb-0000:00:13.2-1.3.1/input0
[ 4.310299] usb 4-1.3.2: new full-speed USB device number 6 using ehci_hcd
[ 4.399254] input: HID 0a5c:4503 as /devices/pci0000:00/0000:00:13.2/usb4/4-1/4-1.3/4-1.3.2/4-1.3.2:1.0/input/input2
[ 4.399321] generic-usb 0003:0A5C:4503.0003: input,hidraw2: USB HID v1.11 Mouse [HID 0a5c:4503] on usb-0000:00:13.2-1.3.2/input0
[ 4.463653] usb 4-1.3.3: new full-speed USB device number 7 using ehci_hcd
[ 6.328033] Bluetooth: Generic Bluetooth USB driver ver 0.6
[ 6.328266] usbcore: registered new interface driver btusb
[ 6.840353] usbcore: registered new interface driver uas
[ 6.842301] Initializing USB Mass Storage driver...
[ 6.842423] scsi6 : usb-storage 4-3:1.0
[ 6.842515] usbcore: registered new interface driver usb-storage
[ 6.842516] USB Mass Storage support registered.
[ 53.658571] input: Microsoft Bluetooth Notebook Mouse 5000 as /devices/pci0000:00/0000:00:13.2/usb4/4-1/4-1.3/4-1.3.3/4-1.3.3:1.0/bluetooth/hci0/hci0:11/input7
# KEYBOARD DISCONNECTED
[ 533.674942] usb 1-5: USB disconnect, device number 2
[ 533.674946] usb 1-5.1: USB disconnect, device number 3
# KEYBOARD RECONNECTED
[ 538.850023] usb 1-5: new high-speed USB device number 4 using ehci_hcd
[ 538.974090] hub 1-5:1.0: USB hub found
[ 538.974208] hub 1-5:1.0: 3 ports detectedI've noticed that the same happens if I disconnect the keyboard while the grub menu is displayed, does this mean it's an hardware issue? (the motherboard is an Asus M5A88-EVO)
The kernel is
Linux 3.2.1-2-ARCH #1 SMP PREEMPT Mon Jan 23 12:40:01 UTC 2012Any idea?
Last edited by xan (2012-01-28 19:30:51)
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