This originally happened with my USB mouse, but somehow it doesn't happen anymore, but the exact same thing still happens when I plug in a Plantronics USB headset.
When I plug in the USB headset everything quits out and I'm left with a black screen that lists a few things about setting IRQ priorities, but most importantly it states "Stopping System V Runlevel compatibilit[OK]"
Once I remove the device it lists a bunch of identical error messages about generic-usb, with the hardware address, and states that it can't reset the device.
If I try to boot with the USB headset plugged in I see the boot splash image, then it kicks me back to TTY1.
In all cases I'm able to restart XFCE with "sudo service lightdm restart" but everything I was running at the time of the crash has been closed. There are no logs in /var/crash, and .xsession-errors doesn't list anything new after the crash, and dmesg has no new output during the crash. The only trace that anything has crashed was found in /var/log/syslog, which I've pasted here: http://pastebin.com/cNTrYBG1
A little background, I recently wiped 10.04 from my Toshiba Satellite A205 to install 12.04, the USB headset was working well before the upgrade. The LiveDVD will not run with the headset plugged in either. After the crash I am able to switch to TTY1 and run lsusb and see that Plantronics IS listed there. Help troubleshooting this problem would be appreciated as I'm out of ideas. I tried asking the question on AskUbuntu at Stack Exchange, but was referred to Launchpad: http://askubuntu.com/questions/124042/plugging-in-usb-mouse-or-usb-headset-crashes-xserver-in-fresh-install-of-12-04
I'm not entirely convinced this is a bug since I'm unable to find anybody else having similar symptoms.
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: airlynx 1780 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc500000 irq 48'
Mixer name : 'Realtek ALC268'
Components : 'HDA:10ec0268,1179ff02,00100003 HDA:11c11040,11790001,00100200'
Controls : 16
Simple ctrls : 9
Card1.Amixer.info:
Card hw:1 'Interface'/'M-Audio USB Uno MIDI Interface at usb-0000:00:1d.7-5.6, full speed'
Mixer name : 'USB Mixer'
Components : 'USB0763:0150'
Controls : 0
Simple ctrls : 0
Card1.Amixer.values:
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=b13ae042-651b-4866-84d0-22dec59d51af
InstallationMedia: Ubuntu-Studio 12.04 "Precise Pangolin" - Beta i386 (20120418)
MachineType: TOSHIBA Satellite A205
Package: linux 3.2.0.25.27 [origin: LP-PPA-canonical-kernel-team]
PackageArchitecture: i386
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-25-generic-pae root=UUID=f2d359b3-c808-4c9c-b0e8-251da97ecca8 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
RelatedPackageVersions:
linux-restricted-modules-3.2.0-25-generic-pae N/A
linux-backports-modules-3.2.0-25-generic-pae N/A
linux-firmware 1.79
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: third-party-packages precise
Uname: Linux 3.2.0-25-generic-pae i686
UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 08/28/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V2.60
dmi.board.name: ISKAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV2.60:bd08/28/2008:svnTOSHIBA:pnSatelliteA205:pvrPSAE3U-07Y023:rvnTOSHIBA:rnISKAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite A205
dmi.product.version: PSAE3U-07Y023
dmi.sys.vendor: TOSHIBA
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