Xorg crashes on VT switch

[Shevek]

Switch in and out of VT7 a few times. Xorg crashes.

[ 49.843] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event4)
[ 49.843] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "evdev touchpad catchall"
[ 49.843] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "touchpad catchall"
[ 49.843] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "Default clickpad buttons"
[ 49.843] (II) LoadModule: "synaptics"
[ 49.843] (II) Loading /usr/lib/xorg/modules/input/synaptics_drv.so
[ 49.863] (II) Module synaptics: vendor="X.Org Foundation"
[ 49.863] compiled for 1.15.0, module version = 1.7.4
[ 49.863] Module class: X.Org XInput Driver
[ 49.863] ABI class: X.Org XInput driver, version 20.0
[ 49.863] (II) Using input driver 'synaptics' for 'SynPS/2 Synaptics TouchPad'
[ 49.863] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 49.863] (**) Option "Device" "/dev/input/event4"
[ 49.912] (II) synaptics: SynPS/2 Synaptics TouchPad: ignoring touch events for semi-multitouch device
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: x-axis range 1472 - 5470 (res 60)
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: y-axis range 1408 - 4498 (res 85)
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: pressure range 0 - 255
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: finger width range 0 - 15
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: buttons: left right double triple
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: Vendor 0x2 Product 0x7
[ 49.912] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 49.912] (**) SynPS/2 Synaptics TouchPad: always reports core events
[ 49.932] (**) Option "config_info" "udev:/sys/devices/platform/i8042/serio1/input/input5/event4"
[ 49.939] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD, id 11)
[ 49.939] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MinSpeed is now constant deceleration 2.5
[ 49.939] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) MaxSpeed is now 1.75
[ 49.939] (**) synaptics: SynPS/2 Synaptics TouchPad: (accel) AccelFactor is now 0.040
[ 49.939] (**) SynPS/2 Synaptics TouchPad: (accel) keeping acceleration scheme 1
[ 49.939] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration profile 1
[ 49.939] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration factor: 2.000
[ 49.939] (**) SynPS/2 Synaptics TouchPad: (accel) acceleration threshold: 4
[ 49.939] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 49.939] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/mouse0)
[ 49.939] (**) SynPS/2 Synaptics TouchPad: Ignoring device from InputClass "touchpad ignore duplicates"

Then

[ 421.948] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 453.868] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 454.160] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 454.161] setversion 1.4 failed: Permission denied
[ 467.348] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 474.090] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 474.379] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 479.580] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 486.524] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 486.822] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 488.168] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 703.352] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 703.643] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 707.441] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 991.371] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 991.666] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 1001.828] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 1007.390] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 1007.688] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 1010.192] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 1170.987] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 1171.291] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 1174.996] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 1257.552] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 1257.842] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 1268.040] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 1270.068] (II) AIGLX: Resuming AIGLX clients after VT switch
[ 1270.360] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found
[ 1271.448] (EE)
[ 1271.448] (EE) Backtrace:
[ 1271.449] (EE) 0: /usr/bin/X (xorg_backtrace+0x48) [0x7fa848227c78]
[ 1271.449] (EE) 1: /usr/bin/X (0x7fa84807f000+0x1ac969) [0x7fa84822b969]
[ 1271.449] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fa84717c000+0x10340) [0x7fa84718c340]
[ 1271.449] (EE) 3: /usr/bin/X (mieqProcessDeviceEvent+0x125) [0x7fa84820a025]
[ 1271.449] (EE) 4: /usr/bin/X (mieqProcessInputEvents+0xf7) [0x7fa84820a1e7]
[ 1271.449] (EE) 5: /usr/bin/X (ProcessInputEvents+0x9) [0x7fa848111fe9]
[ 1271.449] (EE) 6: /usr/bin/X (xf86VTSwitch+0x365) [0x7fa848112905]
[ 1271.450] (EE) 7: /usr/bin/X (WakeupHandler+0x6d) [0x7fa8480d943d]
[ 1271.450] (EE) 8: /usr/bin/X (WaitForSomething+0x1bf) [0x7fa84822522f]
[ 1271.450] (EE) 9: /usr/bin/X (0x7fa84807f000+0x55811) [0x7fa8480d4811]
[ 1271.450] (EE) 10: /usr/bin/X (0x7fa84807f000+0x5994a) [0x7fa8480d894a]
[ 1271.450] (EE) 11: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7fa845bbbec5]
[ 1271.450] (EE) 12: /usr/bin/X (0x7fa84807f000+0x44e7e) [0x7fa8480c3e7e]
[ 1271.450] (EE)
[ 1271.450] (EE) Segmentation fault at address 0x118
[ 1271.450] (EE)
Fatal server error:
[ 1271.450] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 1271.450] (EE)
[ 1271.450] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[ 1271.450] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 1271.450] (EE)
[ 1271.451] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 1271.607] (EE) Server terminated with error (1). Closing log file.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xserver-xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Jul 17 12:17:42 2014
InstallationDate: Installed on 2013-01-24 (538 days ago)
InstallationMedia: Xubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
SourcePackage: xorg
UpgradeStatus: Upgraded to trusty on 2014-07-16 (0 days ago)

[Shevek (r-launchpad-anarres-org)]

Uninstalling xserver-xorg-input-synaptics fixes the issue. However, of course the trackpad no longer works.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[penalvch (penalvch)]

Shevek, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg REPLACE-WITH-BUG-NUMBER

Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

As well, given the information from the prior release is already available, testing a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]