Description of problem:
I'm unable to shutdown X when running gnome. The mouse freezes during shutdown
and all I can see is a single colored screen with the mouse. I tried with
blackbox and it works ok (shutdown works ok and I'm back in the console) so I'm
not sure if this is an xorg problem or a gnome problem.
After the freeze I can ssh to the machine as usuall. I checked the process list
and it looks like all gnome related processes including the X server have
already exited.

Version-Release number of selected component (if applicable):
gnome-session-2.16.0-7.fc6
xorg-x11-server-Xorg-1.1.1-47.1.fc6
xorg-x11-drv-sis-0.9.1-7

How reproducible:
Always. Happens whenever I shutdown gnome.


Steps to Reproduce:
1. Run startx with gnome as the window manager.
2. Log off via the menu or ctrl+alt+backspace.
  
Actual results:
Freeze.

Expected results:
Get back to the console.

Additional info:

Machine specification:
AMD athlon XP 2500+
512Mb RAM
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 661/741/760
PCI/AGP or 662/761Gx PCIE VGA Display Adapter (prog-if 00 [VGA])
        Subsystem: Foxconn International, Inc. Unknown device 0c4d
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 10
        BIST result: 00
        Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
        Region 1: Memory at ec000000 (32-bit, non-prefetchable) [size=128K]
        Region 2: I/O ports at d000 [size=128]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [50] AGP version 3.0
                Status: RQ=256 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans-
64bit- FW- AGP3+ Rate=x4,x8
                Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none>

# Xorg configuration created by system-config-display

Section "ServerLayout"
        Identifier     "single head configuration"
        Screen      0  "Screen0" 0 0
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "kbd"
        Option      "XkbModel" "pc105"
        Option      "XkbLayout" "us"
EndSection

Section "Monitor"

 ### Comment all HorizSync and VertSync values to use DDC:
        Identifier   "Monitor0"
        ModelName    "LCD Panel 1280x1024"
 ### Comment all HorizSync and VertSync values to use DDC:
        HorizSync    31.5 - 67.0
        VertRefresh  50.0 - 75.0
        Option      "dpms"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "sis"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     16
        SubSection "Display"
                Viewport   0 0
                Depth     24
                Modes    "800x600"
        EndSubSection
        SubSection "Display"
                Viewport   0 0
                Depth     16
                Modes    "1280x1024" "1280x960" "1280x800" "1152x864" "1152x768"
"1024x768" "800x600" "640x480"
        EndSubSection
EndSection