This problem began with an upgrade to kernel 2.6.31-14-generic. I have no HP printers nor any other USB devices plugged in. Basic Error Message lucas@lucas-laptop:~$ tail -f /var/log/kern.log Nov 23 03:46:54 lucas-laptop kernel: [ 1739.932045] hub 2-0:1.0: connect-debounce failed, port 3 disabled Nov 23 03:46:54 lucas-laptop kernel: [ 1740.236049] hub 2-0:1.0: unable to enumerate USB device on port 4 Nov 23 03:46:54 lucas-laptop kernel: [ 1740.684112] hub 8-0:1.0: unable to enumerate USB device on port 2 Nov 23 03:46:56 lucas-laptop kernel: [ 1742.604054] hub 2-0:1.0: connect-debounce failed, port 3 disabled Nov 23 03:46:57 lucas-laptop kernel: [ 1742.844054] hub 2-0:1.0: unable to enumerate USB device on port 4 Nov 23 03:46:57 lucas-laptop kernel: [ 1743.472067] hub 8-0:1.0: unable to enumerate USB device on port 2 Nov 23 03:46:59 lucas-laptop kernel: [ 1745.412045] hub 2-0:1.0: connect-debounce failed, port 3 disabled Nov 23 03:47:00 lucas-laptop kernel: [ 1745.876050] hub 2-0:1.0: unable to enumerate USB device on port 4 Nov 23 03:47:00 lucas-laptop kernel: [ 1746.128060] hub 2-0:1.0: unable to enumerate USB device on port 5 Nov 23 03:47:01 lucas-laptop kernel: [ 1746.740075] hub 8-0:1.0: unable to enumerate USB device on port 2 And so on... ---------------------------------------------------------------------------------------------------------------------------------------- When plugging in my HP web cam I get: (Works) Nov 23 03:44:39 lucas-laptop kernel: [ 1604.968064] usb 2-1: new high speed USB device using ehci_hcd and address 124 Nov 23 03:44:39 lucas-laptop kernel: [ 1605.134083] usb 2-1: configuration #1 chosen from 1 choice Nov 23 03:44:39 lucas-laptop kernel: [ 1605.137394] uvcvideo: Found UVC 1.00 device HP Deluxe Webcam KQ246AA (04f2:a13c) Nov 23 03:44:39 lucas-laptop kernel: [ 1605.144975] input: HP Deluxe Webcam KQ246AA as /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/input/input14 Nov 23 03:44:39 lucas-laptop kernel: [ 1605.179984] 124:3:1: cannot get freq at ep 0x84 Nov 23 03:44:39 lucas-laptop kernel: [ 1605.194494] input: HP Deluxe Webcam KQ246AA HP Deluxe Webcam KQ246AA as /devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.4/input/input15 Nov 23 03:44:39 lucas-laptop kernel: [ 1605.194683] generic-usb 0003:04F2:A13C.0003: input,hidraw0: USB HID v1.11 Joystick [HP Deluxe Webcam KQ246AA HP Deluxe Webcam KQ246AA] on usb-0000:00:1d.7-1/input4 Nov 23 03:44:39 lucas-laptop kernel: [ 1605.287350] 124:3:1: cannot get freq at ep 0x84 Nov 23 03:44:39 lucas-laptop kernel: [ 1605.321487] 124:3:1: cannot get freq at ep 0x84 The camera and all its functions work. ---------------------------------------------------------------------------------------------------------------------------------------- When plugging in a Motorola Cliq phone (works), I get: Nov 23 03:45:12 lucas-laptop kernel: [ 1638.488438] usb-storage: device scan complete Nov 23 03:45:12 lucas-laptop kernel: [ 1638.488907] scsi 8:0:0:0: Direct-Access Motorola MB200 001 PQ: 0 ANSI: 2 Nov 23 03:45:12 lucas-laptop kernel: [ 1638.489572] sd 8:0:0:0: Attached scsi generic sg2 type 0 Nov 23 03:45:12 lucas-laptop kernel: [ 1638.497517] sd 8:0:0:0: [sdb] 3842048 512-byte logical blocks: (1.96 GB/1.83 GiB) Nov 23 03:45:12 lucas-laptop kernel: [ 1638.498255] sd 8:0:0:0: [sdb] Write Protect is off Nov 23 03:45:12 lucas-laptop kernel: [ 1638.498259] sd 8:0:0:0: [sdb] Mode Sense: 00 00 00 00 Nov 23 03:45:12 lucas-laptop kernel: [ 1638.498262] sd 8:0:0:0: [sdb] Assuming drive cache: write through Nov 23 03:45:12 lucas-laptop kernel: [ 1638.500742] sd 8:0:0:0: [sdb] Assuming drive cache: write through Nov 23 03:45:12 lucas-laptop kernel: [ 1638.500747] sdb: sdb1 Nov 23 03:45:12 lucas-laptop kernel: [ 1638.507683] sd 8:0:0:0: [sdb] Assuming drive cache: write through Nov 23 03:45:12 lucas-laptop kernel: [ 1638.507689] sd 8:0:0:0: [sdb] Attached SCSI removable disk ------------------------------------------------------------------------------------------------------------------------------------------------ With those two device plugged in, lsusb looks like: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 008: ID 22b8:2d67 Motorola PCS Bus 002 Device 124: ID 04f2:a13c Chicony Electronics Co., Ltd Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub ----------------------------------------------------------------------------------------------------------------------------------------------- Finally, the mouse (mice) that dont work: Nov 23 03:47:17 lucas-laptop kernel: [ 1762.756042] usb 7-1: new low speed USB device using uhci_hcd and address 5 Nov 23 03:47:17 lucas-laptop kernel: [ 1762.876031] usb 7-1: device descriptor read/64, error -71 Nov 23 03:47:17 lucas-laptop kernel: [ 1763.100041] usb 7-1: device descriptor read/64, error -71 Nov 23 03:47:17 lucas-laptop kernel: [ 1763.316049] usb 7-1: new low speed USB device using uhci_hcd and address 6 Nov 23 03:47:17 lucas-laptop kernel: [ 1763.436043] usb 7-1: device descriptor read/64, error -71 One mouse is corded USB, the other is cordless, both work fine on my 8.04 machine. I hope this helps find a fix.