Comment 30 for bug 647802

Same issue here:

Radeon HD 5450 1GB, 2 Monitors, different sizes. Changing res, attempting to setup dual monitors causes a crash.

Catalyst 8.96.7-120312a-135598C-ATI

Even tried swiping an xorg.conf from a 5870 equipped system with the desired config, no joy with duals and amdcccle still crashes:

Output of 'sudo gdm amdcccle' <RUN:

sudo gdb amdcccle
GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/bin/amdcccle...(no debugging symbols found)...done.
(gdb)
(gdb) amdcccle
Undefined command: "amdcccle". Try "help".
(gdb) ^CQuit
(gdb) ^CQuit
(gdb) exit
Undefined command: "exit". Try "help".
(gdb) quit
cknight@office-myth:~$ sudo gdb amdcccle
GNU gdb (Ubuntu/Linaro 7.4-2012.02-0ubuntu2) 7.4-2012.02
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
Reading symbols from /usr/bin/amdcccle...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/amdcccle
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffef3ef700 (LWP 5622)]
[New Thread 0x7fffe2aed700 (LWP 5626)]
[Thread 0x7fffe2aed700 (LWP 5626) exited]

(process:5617): GLib-GObject-CRITICAL **: /build/buildd/glib2.0-2.32.1/./gobject/gtype.c:2722: You forgot to call g_type_init()

(process:5617): GLib-CRITICAL **: g_once_init_leave: assertion `result != 0' failed

(process:5617): GLib-GObject-CRITICAL **: /build/buildd/glib2.0-2.32.1/./gobject/gtype.c:2722: You forgot to call g_type_init()

(process:5617): GLib-CRITICAL **: g_once_init_leave: assertion `result != 0' failed

(process:5617): GLib-GObject-CRITICAL **: g_object_new: assertion `G_TYPE_IS_OBJECT (object_type)' failed

Program received signal SIGSEGV, Segmentation fault.
0x00007fffe1657961 in gdk_display_open ()
   from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0