GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2
Copyright (C) 2010 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"
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For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/Xorg...Reading symbols from /usr/lib/debug/usr/bin/Xorg...done.
done.
(gdb) run
Starting program: /usr/bin/Xorg 
[Thread debugging using libthread_db enabled]

X.Org X Server 1.10.1
Release Date: 2011-04-15
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-29-server x86_64 Ubuntu
Current Operating System: Linux pc-rpr-03 2.6.38-10-generic #44-Ubuntu SMP Thu Jun 2 21:32:22 UTC 2011 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=0aa4f136-a44f-47aa-99d5-ce81017c378e ro vga=0x318 nomodeset
Build Date: 21 May 2011  11:48:41AM
xorg-server 2:1.10.1-1ubuntu1.1 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.20.2
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sun Jul  3 00:22:17 2011
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
(EE) Failed to load module "fglrx" (module does not exist, 0)
(II) [KMS] drm report modesetting isn't supported.
[tcsetpgrp failed in terminal_inferior: Operation not permitted]
  XRANDR name: DVI-0
  Connector: DVI-I
  CRT1: INTERNAL_KLDSCP_DAC1
  DFP2: INTERNAL_UNIPHY2
  DDC reg: 0x7f10
  XRANDR name: HDMI-0
  Connector: HDMI-A
  DFP1: INTERNAL_UNIPHY
  DDC reg: 0x7e50
  XRANDR name: VGA-0
  Connector: VGA
  CRT2: INTERNAL_KLDSCP_DAC2
  DDC reg: 0x7e40
finished output detect: 0
finished output detect: 1
Dac detection success
finished output detect: 2
finished all detect
Dac detection success
Output UNIPHY2 transmitter setup success
Blank CRTC 0 success
Disable CRTC memreq 0 success
Disable CRTC 0 success
Blank CRTC 1 success
Disable CRTC memreq 1 success
Disable CRTC 1 success
mc fb loc is 00ef00d0
Output UNIPHY2 transmitter setup success

Program received signal SIGSEGV, Segmentation fault.
atombios_pick_dig_encoder (output=0x828120) at ../../src/atombios_output.c:1840
1840	../../src/atombios_output.c: No such file or directory.
	in ../../src/atombios_output.c
(gdb) bt f
#0  atombios_pick_dig_encoder (output=0x828120)
    at ../../src/atombios_output.c:1840
        radeon_crtc = <error reading variable radeon_crtc (Cannot access memory at address 0x1b0)>
        xf86_config = 0x81be30
        radeon_output = 0x827fe0
        info = 0x81b040
        radeon_encoder = 0x0
        is_lvtma = 0
        i = <value optimised out>
        mode = <value optimised out>
        dig_enc_use_mask = 0
#1  0x00007ffff428365f in atombios_output_dpms (output=0x828120, mode=3)
    at ../../src/atombios_output.c:1472
        radeon_output = 0x827fe0
        radeon_encoder = 0x824660
        info = 0x81b040
        disp_data = {ucAction = 64 '@', aucPadding = "\260\201"}
        data = {val = 8570816, connectorInfo = 0x82c7c0, 
          EDIDBlock = 0x82c7c0 "", atomhandle = 0x82c7c0, modes = 0x82c7c0, 
          exec = {index = 8570816, pspace = 0x7ffff65e31c0, 
            dataSpace = 0x40b6e0}, fb = {start = 8570816, size = 0}}
        space = 0x7ffff7ffe2e8 ""
        index = 0
        is_dig = 0
#2  0x00007ffff423486e in radeon_dpms (output=0x828120, mode=3)
    at ../../src/radeon_output.c:500
        info = <value optimised out>
        radeon_output = 0x827fe0
#3  0x000000000048c7d3 in xf86PrepareOutputs (scrn=0x816340)
    at ../../../../hw/xfree86/modes/xf86Crtc.c:2554
        output = 0x828120
        o = <value optimised out>
#4  xf86SetDesiredModes (scrn=0x816340)
    at ../../../../hw/xfree86/modes/xf86Crtc.c:2611
        config = 0x81be30
        crtc = <value optimised out>
        c = <value optimised out>
#5  0x00007ffff41f3dd5 in RADEONScreenInit (scrnIndex=0, pScreen=0x82c7c0, 
    argc=<value optimised out>, argv=<value optimised out>)
    at ../../src/radeon_driver.c:3883
        pScrn = <value optimised out>
        info = <value optimised out>
        hasDRI = <value optimised out>
        subPixelOrder = <value optimised out>
        s = <value optimised out>
#6  0x000000000042e658 in AddScreen (pfnInit=<value optimised out>, argc=1, 
    argv=0x7fffffffe6d8) at ../../dix/dispatch.c:3890
        i = <value optimised out>
        scanlinepad = <value optimised out>
        format = <value optimised out>
        depth = <value optimised out>
        bitsPerPixel = <value optimised out>
        j = <value optimised out>
        k = <value optimised out>
        pScreen = 0x82c7c0
#7  0x0000000000470094 in InitOutput (pScreenInfo=<value optimised out>, 
    argc=1, argv=0x7fffffffe6d8)
    at ../../../../hw/xfree86/common/xf86Init.c:738
        i = <value optimised out>
        j = <value optimised out>
        k = <value optimised out>
        scr_index = <value optimised out>
        was_blocked = 0
        modulelist = <value optimised out>
        optionlist = 0x811630
        screenpix24 = <value optimised out>
        pix24 = <value optimised out>
        pix24From = <value optimised out>
        pix24Fail = 0
        autoconfig = <value optimised out>
        configured_device = <value optimised out>
#8  0x00000000004218c3 in main (argc=1, argv=<value optimised out>, 
    envp=<value optimised out>) at ../../dix/main.c:205
        i = <value optimised out>
        alwaysCheckForInput = {0, 1}
(gdb) cont
Continuing.

Backtrace:
0: /usr/bin/Xorg (xorg_backtrace+0x26) [0x4a2656]
1: /usr/bin/Xorg (0x400000+0x621ca) [0x4621ca]
2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7ffff7329000+0xfc60) [0x7ffff7338c60]
3: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7ffff41af000+0xd23fd) [0x7ffff42813fd]
4: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7ffff41af000+0xd465f) [0x7ffff428365f]
5: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7ffff41af000+0x8586e) [0x7ffff423486e]
6: /usr/bin/Xorg (xf86SetDesiredModes+0x1e3) [0x48c7d3]
7: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7ffff41af000+0x44dd5) [0x7ffff41f3dd5]
8: /usr/bin/Xorg (AddScreen+0x1a8) [0x42e658]
9: /usr/bin/Xorg (InitOutput+0x294) [0x470094]
10: /usr/bin/Xorg (0x400000+0x218c3) [0x4218c3]
11: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xff) [0x7ffff6272eff]
12: /usr/bin/Xorg (0x400000+0x21629) [0x421629]
Segmentation fault at address 0x1b0

Caught signal 11 (Segmentation fault). Server aborting

Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
Please also check the log file at "/var/log/Xorg.0.log" for additional information.

Output UNIPHY2 transmitter setup success
Blank CRTC 0 success
Disable CRTC memreq 0 success
Disable CRTC 0 success
Blank CRTC 1 success
Disable CRTC memreq 1 success
Disable CRTC 1 success
 ddxSigGiveUp: Closing log

Program exited with code 01.
(gdb) quit