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[Manuel <683323@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When using the latest kernel 2.6.35-23-generic X11 fails to startup.
The screen is black and the backlight starts flashing.

The Xorg log (see attachment) contains a segmentation fault:
[    41.461] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/mouse1)
[    41.461] (II) No input driver/identifier specified (ignoring)
[    41.479] 
Backtrace:
[    41.479] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80e82fb]
[    41.479] 1: /usr/bin/X (0x8048000+0x5da8d) [0x80a5a8d]
[    41.479] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0x51540c]
[    41.480] 3: /usr/bin/X (xf86findOptionValue+0x24) [0x80cab64]
[    41.480] 4: /usr/bin/X (0x8048000+0x6a5e2) [0x80b25e2]
[    41.480] 5: /usr/bin/X (0x8048000+0x6b169) [0x80b3169]
[    41.480] 6: /usr/bin/X (xf86OpenSerial+0x43) [0x816da43]
[    41.480] 7: /usr/lib/xorg/modules/input/evtouch_drv.so (0xb11000+0x2413) [0xb13413]
[    41.480] 8: /usr/bin/X (EnableDevice+0xc9) [0x80679c9]
[    41.480] 9: /usr/bin/X (0x8048000+0x1fd5f) [0x8067d5f]
[    41.480] 10: /usr/bin/X (0x8048000+0x1a577) [0x8062577]
[    41.480] 11: /lib/libc.so.6 (__libc_start_main+0xe7) [0x126ce7]
[    41.480] 12: /usr/bin/X (0x8048000+0x1a191) [0x8062191]
[    41.480] Segmentation fault at address 0x15
[    41.480] 
Caught signal 11 (Segmentation fault). Server aborting
[    41.480] 


Please note that the kernel 2.6.35-23-generic contains a mosart hid driver. Kernel 2.6.35-22-generic did not include this driver.
This computer is a Acer Aspire 1420P which has a 2-finger mosart touch screen.
It is incorrectly recognized by lspci:
$ lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 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 002: ID 062a:7100 Creative Labs  <<-- mosart touch screen!
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:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 04f2:b19d Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


If you need more information, I'll provide it!

Cheers!

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xserver-xorg-input-evtouch 0.8.8-4fakesync2
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
DRM.card0.DisplayPort.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DRM.card0.DisplayPort.2:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DRM.card0.DisplayPort.3:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DRM.card0.HDMI_Type_A.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DRM.card0.HDMI_Type_A.2:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768
 edid-base64: AP///////wAGr1wgAAAAAAESAQOAGg54CpmFlVVWkigiUFQAAAABAQEBAQEBAQEBAQEBAQEBlhlWKFAACDAYECQAAJAQAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTE2WFcwMiBWMCAKAPg=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
Date: Tue Nov 30 20:34:36 2010
DkmsStatus:
 virtualbox-ose, 3.2.8, 2.6.35-23-generic, i686: installed 
 virtualbox-ose, 3.2.8, 2.6.35-22-generic, i686: installed  (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!)
EcryptfsInUse: Yes
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
MachineType: Acer Aspire 1420P
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=7832471a-d9c4-47f8-a323-c52a07534926 ro crashkernel=384M-2G:64M,2G-:128M quiet splash
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=de_DE.utf8
 SHELL=/bin/bash
SourcePackage: xf86-input-evtouch
dmi.bios.date: 11/02/2009
dmi.bios.vendor: INSYDE
dmi.bios.version: v1.3108
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM12-MS
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrv1.3108:bd11/02/2009:svnAcer:pnAspire1420P:pvrv1.3108:rvnAcer:rnJM12-MS:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire 1420P
dmi.product.version: v1.3108
dmi.sys.vendor: Acer
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       i686
 kernel:             2.6.35-22-generic

** Affects: xf86-input-evtouch (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 maverick ubuntu-une

-- 
X11 crashes at startup
https://bugs.launchpad.net/bugs/683323
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