Binary package hint: xserver-xorg-input-evdev
Natty, 2.6.38-8-generic-pae #42-Ubuntu SMP Mon Apr 11 05:17:09 UTC 2011 i686 athlon i386 GNU/Linux
udev 167-0ubuntu3
xserver-xorg-input-evdev 1:2.6.0-1ubuntu12
After starting system, with USB HD plugged in, then I log in and type startx.
X-windows starts, but mouse (trackball) is not working.
Note that GPM mouse tracking works fine with or without the USB HD.
From Xorg.log (working case, without HD plugged in):
[ 87.153] (II) config/udev: Adding input device Logitech Trackball (/dev/input/event3)
[ 87.153] (**) Logitech Trackball: Applying InputClass "evdev pointer catchall"
[ 87.153] (II) Using input driver 'evdev' for 'Logitech Trackball'
[ 87.153] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[ 87.153] (**) Logitech Trackball: always reports core events
[ 87.153] (**) Logitech Trackball: Device: "/dev/input/event3"
[ 87.168] (--) Logitech Trackball: Found 3 mouse buttons
[ 87.168] (--) Logitech Trackball: Found scroll wheel(s)
[ 87.168] (--) Logitech Trackball: Found relative axes
[ 87.168] (--) Logitech Trackball: Found x and y relative axes
[ 87.168] (II) Logitech Trackball: Configuring as mouse
[ 87.168] (II) Logitech Trackball: Adding scrollwheel support
[ 87.168] (**) Logitech Trackball: YAxisMapping: buttons 4 and 5
[ 87.168] (**) Logitech Trackball: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[ 87.168] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:12.1/usb4/4-3/4-3:1.0/input/input3/event3"
[ 87.168] (II) XINPUT: Adding extended input device "Logitech Trackball" (type: MOUSE)
[ 87.168] (II) Logitech Trackball: initialized for relative axes.
[ 87.168] (**) Logitech Trackball: (accel) keeping acceleration scheme 1
[ 87.168] (**) Logitech Trackball: (accel) acceleration profile 0
[ 87.168] (**) Logitech Trackball: (accel) acceleration factor: 2.000
[ 87.168] (**) Logitech Trackball: (accel) acceleration threshold: 4
[ 87.170] (II) config/udev: Adding input device Logitech Trackball (/dev/input/mouse0)
[ 87.170] (II) No input driver/identifier specified (ignoring)
--------------------------------------------
Failure case, with USB HD plugged in:
[ 41.855] (II) config/udev: Adding input device Logitech Trackball (/dev/input/mouse0)
[ 41.855] (II) No input driver/identifier specified (ignoring)
[ 41.864] (II) config/udev: Adding input device Western Digital External HDD (/dev/input/event2)
[ 41.864] (**) Western Digital External HDD : Applying InputClass "evdev keyboard catchall"
[ 41.864] (II) Using input driver 'evdev' for 'Western Digital External HDD '
[ 41.864] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[ 41.864] (**) Western Digital External HDD : always reports core events
[ 41.864] (**) Western Digital External HDD : Device: "/dev/input/event2"
[ 41.880] (--) Western Digital External HDD : Found 12 mouse buttons
[ 41.880] (II) Western Digital External HDD : Configuring as mouse
[ 41.880] (**) Western Digital External HDD : YAxisMapping: buttons 4 and 5
[ 41.880] (**) Western Digital External HDD : EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[ 41.880] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:12.2/usb1/1-2/1-2:1.1/input/input2/event2"
[ 41.880] (II) XINPUT: Adding extended input device "Western Digital External HDD " (type: MOUSE)
---
Architecture: i386
CurrentDmesg: [ 26.632021] eth0: no IPv6 routers present
CustomUdevRuleFiles: 10-vboxdrv.rules
DistroRelease: Ubuntu 11.04
MachineType: System manufacturer System Product Name
Package: udev 167-0ubuntu3
PackageArchitecture: i386
ProcEnviron:
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic-pae root=UUID=739a6fe9-da5d-409f-95ca-f1734eedf5b1 ro text bogus
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Tags: natty
Uname: Linux 2.6.38-8-generic-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 09/28/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0401
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A78L-M
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0401:bd09/28/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78L-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
---
Architecture: i386
CurrentDmesg: [ 26.992019] eth0: no IPv6 routers present
CustomUdevRuleFiles: 10-vboxdrv.rules
DistroRelease: Ubuntu 11.04
MachineType: System manufacturer System Product Name
Package: udev 167-0ubuntu3
PackageArchitecture: i386
ProcEnviron:
PATH=(custom, no user)
LANG=en_CA.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic-pae root=UUID=739a6fe9-da5d-409f-95ca-f1734eedf5b1 ro text bogus
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
Tags: natty
Uname: Linux 2.6.38-8-generic-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 09/28/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0401
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A78L-M
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0401:bd09/28/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78L-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
fun, should be a udev bug. Please run 'apport-collect 796325' before, and after plugging the HD in.