[apport] xrandr crashed with SIGSEGV in XRRGetScreenInfo()

[Dan Forward]

Binary package hint: xrandr

I am using an nVidia card with three monitors using Xinerama. Beryl will not start because of "No RandR extension" so I ran xrandr directly from the command line and received this "Segmentation fault (core dumped)". When I query /var/log/Xorg.0.log, I find "RandR enabled" three times and "Initializing built-in extension RANDR" caused no problem.

ProblemType: Crash
Architecture: amd64
Date: Sat May 5 17:40:50 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/xrandr
Package: xrandr 1:1.0.2-0ubuntu1
PackageArchitecture: amd64
ProcCmdline: xrandr
ProcCwd: /etc/X11
ProcEnviron:
 SHELL=/bin/bash
 PATH=/home/dan/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
Signal: 11
SourcePackage: xrandr
StacktraceTop:
 ?? () from /usr/lib/libXrandr.so.2
 XRRGetScreenInfo () from /usr/lib/libXrandr.so.2
 ?? ()
 __libc_start_main () from /lib/libc.so.6
 ?? ()
Uname: Linux bungo 2.6.20-15-generic #2 SMP Sun Apr 15 06:17:24 UTC 2007 x86_64 GNU/Linux
UserGroups: adm admin audio cdrom dialout dip floppy kvm lpadmin netdev plugdev powerdev scanner video

[Bryce Harrington (bryce)]

I've seen this issue myself on triple head with nvidia.

[Bryce Harrington (bryce)]

Can you run xresprobe nvidia (or xresprobe nv if you're using the open source driver) and paste the results here.
Please also attach the result from running ddcprobe.

For me, on an amd64 with nvidia and triple-head, I got blank output from xresprobe, and ddcprobe segfaulted.

[Apport retracing service (apport)]

StacktraceTop:XRRGetScreenInfo (dpy=0x503010, window=958) at ../../src/XrrConfig.c:351
?? ()
__libc_start_main () from /lib/libc.so.6
?? ()

[Brian Murray (brian-murray)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. However, this bug is a duplicate of bug 104978 and is being marked as such. Feel free to submit any future bugs you may find.