Public bug reported: USB devices (such as USB flash storage, USB mouse, etc) worked in kernel version 2.6.31-20 and prior (perhaps Ubuntu 10.04 kernel?), but stopped working in 2.6.35-22 and thereafter.
When a device is plugged in, it is indicated via dmesg of the device being detected, but nothing afterwards (no errors and so on). For example, plugging in a USB device under a non-working kernel version (dmesg): [ 144.156079] usb 1-4: new high speed USB device using ehci_hcd and address 2 And under the kernel version that USB devices work properly: [ 134.640072] usb 1-4: new high speed USB device using ehci_hcd and address 2 [ 134.894173] usb 1-4: configuration #1 chosen from 1 choice [ 134.952249] Initializing USB Mass Storage driver... [ 134.952434] scsi6 : SCSI emulation for USB Mass Storage devices [ 134.952543] usbcore: registered new interface driver usb-storage [ 134.952547] USB Mass Storage support registered. [ 134.957729] usb-storage: device found at 2 [ 134.957733] usb-storage: waiting for device to settle before scanning [ 139.956235] usb-storage: device scan complete [ 139.958212] scsi 6:0:0:0: Direct-Access CENTON DS Pro 8.07 PQ: 0 ANSI: 2 [ 139.958676] sd 6:0:0:0: Attached scsi generic sg2 type 0 [ 139.965445] sd 6:0:0:0: [sdb] 16424960 512-byte logical blocks: (8.40 GB/7.83 GiB) [ 139.965936] sd 6:0:0:0: [sdb] Write Protect is off [ 139.965941] sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 [ 139.965944] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 139.969062] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 139.969069] sdb: sdb1 [ 140.254318] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 140.254326] sd 6:0:0:0: [sdb] Attached SCSI removable disk ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.35 Regression: Yes Reproducible: No ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: caleb870 1826 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd0340000 irq 43' Mixer name : 'Conexant CX20551 (Waikiki)' Components : 'HDA:14f15047,103c30a5,00100000' Controls : 15 Simple ctrls : 7 Date: Sun Jan 16 23:48:48 2011 Frequency: Once a day. HibernationDevice: RESUME=UUID=d33b1611-f434-4f32-8ea7-1137c709d2b9 Lsusb: Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 111d:0000 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Hewlett-Packard Presario C300 (RL177UA#ABA) ProcCmdLine: root=UUID=187f8dcc-8c77-43cb-84a5-a1d6b84270df ro quiet splash ProcEnviron: LANG=en_US.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.38 SourcePackage: linux WpaSupplicantLog: dmi.bios.date: 04/25/2007 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.24 dmi.board.name: 30C6 dmi.board.vendor: Hewlett-Packard dmi.board.version: 78.10 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: N/A dmi.modalias: dmi:bvnHewlett-Packard:bvrF.24:bd04/25/2007:svnHewlett-Packard:pnPresarioC300(RL177UA#ABA):pvrF.24:rvnHewlett-Packard:rn30C6:rvr78.10:cvnHewlett-Packard:ct10:cvrN/A: dmi.product.name: Presario C300 (RL177UA#ABA) dmi.product.version: F.24 dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 kernel-uncat maverick needs-upstream-testing regression-release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/703798 Title: No USB device works (regression) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs