That happened long ago, and I don't use Ubuntu anymore. Do as you feel.
Greetings.

El martes, 18 de diciembre de 2012, José Alburquerque escribió:

> I don't understand this bug or why it happened, but I don't experience
> it anymore.  Of course, I'm running ubuntu 12.04 so I don't know if it
> is still present in later versions.  I don't know what status to close
> it under so maybe you could?
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (539887).
> https://bugs.launchpad.net/bugs/524107
>
> Title:
>   syndaemon crashed with SIGSEGV in XListInputDevices() logging into
>   xvnc session
>
> Status in “xserver-xorg-input-synaptics” package in Ubuntu:
>   Incomplete
>
> Bug description:
>   Binary package hint: xserver-xorg-input-synaptics
>
>   This happened when logging in to an Xvnc session that connects to gdm
>   through XDMCP.
>
>   Thread 1 (process 12395):
>   #0  0x00007fddfcdb9457 in XInput_find_display (dpy=0x11e3010)
>       at ../../src/XExtInt.c:247
>         nevents = 0
>         dpyinfo = (XExtDisplayInfo *) 0x11ed940
>   #1  0x00007fddfcdb74a9 in XListInputDevices (dpy=0x11e3010, ndevices=0x0)
>       at ../../src/XListDev.c:170
>         size = <value optimized out>
>         rep = {repType = 0 '\0', RepType = 0 '\0', sequenceNumber = 0,
>     length = 0, ndevices = 69 'E', pad1 = 189 '�', pad2 = 48 '0',
>     pad3 = 253 '�d01 = 32733, pad02 = 0, pad03 = 0, pad04 = 0, pad05 = 0}
>         list = <value optimized out>
>         slist = <value optimized out>
>         sclist = <value optimized out>
>         clist = <value optimized out>
>         any = <value optimized out>
>         Any = <value optimized out>
>         nptr = <value optimized out>
>         Nptr = <value optimized out>
>         i = <value optimized out>
>         rlen = <value optimized out>
>         info = <value optimized out>
>   #2  0x0000000000401795 in main (argc=4, argv=<value optimized out>)
>       at ../../tools/syndaemon.c:442
>         idle_time = 0.5
>         poll_delay = 200000
>         c = <value optimized out>
>
>   ProblemType: Crash
>   Architecture: amd64
>   CrashCounter: 1
>   Date: Thu Feb 18 16:32:18 2010
>   DistroRelease: Ubuntu 10.04
>   DkmsStatus:
>    nvidia-173, 173.14.22, 2.6.32-13-generic, x86_64: installed
>    nvidia-173, 173.14.22, 2.6.32-12-generic, x86_64: built
>   ExecutablePath: /usr/bin/syndaemon
>   NonfreeKernelModules: nvidia
>   Package: xserver-xorg-input-synaptics 1.2.0-3ubuntu2
>   ProcCmdLine: root=UUID=06e1c48d-56bd-443b-8324-1975f908d414 ro quiet
> splash
>   ProcCmdline: syndaemon -i 0.5 -k
>   ProcEnviron:
>    LANG=en_US.utf8
>    SHELL=/bin/bash
>   ProcVersionSignature: Ubuntu 2.6.32-13.18-generic
>   RelatedPackageVersions:
>    xserver-xorg 1:7.5+1ubuntu2
>    libgl1-mesa-glx 7.7-0ubuntu8
>    libdrm2 2.4.17-1ubuntu3
>    xserver-xorg-video-intel 2:2.9.1-1ubuntu4
>   SegvAnalysis:
>    Segfault happened at: 0x7fddfcdb9457:        mov    0x4(%rax),%esi
>    PC (0x7fddfcdb9457) ok
>    source "0x4(%rax)" (0x00000004) not located in a known VMA region
> (needed readable region)!
>    destination "%esi" ok
>   SegvReason: reading NULL VMA
>   Signal: 11
>   SourcePackage: xserver-xorg-input-synaptics
>   StacktraceTop:
>    ?? () from /usr/lib/libXi.so.6
>    XListInputDevices () from /usr/lib/libXi.so.6
>    ?? ()
>    __libc_start_main (main=<value optimized out>,
>    ?? ()
>   Title: syndaemon crashed with SIGSEGV in XListInputDevices()
>   Uname: Linux 2.6.32-13-generic x86_64
>   UserGroups: adm audio cdrom dialout dip fax fuse plugdev tape video
>   Xrandr:
>    Error: command ['xrandr', '--verbose'] failed with exit code 1: Xlib:
>  extension "RANDR" missing on display "::ffff:127.0.0.1:3.0".
>    RandR extension missing
>   XsessionErrors:
>    (polkit-gnome-authentication-agent-1:9847): GLib-CRITICAL **:
> g_once_init_leave: assertion `initialization_value != 0' failed
>    (gnome-terminal:9944): Gtk-CRITICAL **: gtk_accel_map_unlock_path:
> assertion `entry != NULL && entry->lock_count >

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https://bugs.launchpad.net/bugs/524107

Title:
  syndaemon crashed with SIGSEGV in XListInputDevices() logging into
  xvnc session

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