Radeon r480 & Multiseat

[bertaboy]

I'm trying to get a multiseat setup running on my system. I have a card with an r480 chip (X800 GTO) which has both VGA and DVI outputs. However, I'm unable to get multiseat to work at all. Below is my xorg.conf:

Section "Files"
   FontPath     "/usr/share/fonts/corefonts"
   FontPath     "/usr/share/fonts/75dpi/:unscaled"
   FontPath     "/usr/share/fonts/100dpi/:unscaled"
   FontPath     "/usr/share/fonts/Type1"
   FontPath     "/usr/share/fonts/cyrillic"
   FontPath     "/usr/share/fonts/default"
   FontPath     "/usr/share/fonts/encodings"
   FontPath     "/usr/share/fonts/microsoft"
   FontPath     "/usr/share/fonts/ttf-bitstream-vera"
   FontPath     "/usr/share/fonts/util"
   FontPath     "/usr/share/fonts/misc"
EndSection

Section "Module"

   Load  "dbe"     # Double buffer extension
   SubSection "extmod"
      Option       "omit xfree86-dga"   # don't initialise the DGA extension --why?
   EndSubSection
   Load  "freetype"
   Load  "dri"
   Load  "drm"
   Load  "glx"
   Load  "radeon"
EndSection

# ------------------------------------------------------------------------
# Input devices
# ------------------------------------------------------------------------

Section "InputDevice"
   Identifier  "Keyboard-base"
   Driver      "kbd"
   Option       "AutoRepeat" "500 30"
   Option       "XkbRules" "xorg"
   Option       "XkbModel" "microsoft"
   Option       "XkbLayout" "us"
EndSection

Section "InputDevice"
   Identifier  "Mouse-base"
   Option      "Name"   "Microsoft Microsoft Wireless Optical Mouse* 1.0A"
   Driver      "evdev"
   Option       "Protocol" "ExplorerPS/2"   # IntelliMouse PS/2
   Option       "Emulate3Buttons" "False"
   Option       "Buttons" "7"
   Option       "ZAxisMapping" "4 5 7 6 8 9"
EndSection

# ------------------------------------------------------------------------
# Dual head system. Notice the two devices sharing the same BusID
# ------------------------------------------------------------------------

Section "Device"
  Identifier  "Card0.0" # CRT-0 (VGA output)
  Driver      "radeon"
  VendorName  "ATI"
  BoardName   "RADEON X800 GTO"
  BusID       "PCI:1:0:0"
  Screen      0
EndSection

Section "Device"
  Identifier  "Card0.1" # CRT-1 (Analog-DVI, DFP-0 : Digital-DVI)
  Driver      "radeon"
  VendorName  "ATI"
  BoardName   "RADEON X800 GTO"
  BusID       "PCI:1:0:0"
  Screen      1
EndSection

# ------------------------------------------------------------------------
# Monitor section: Most of the parameters are optional
# ------------------------------------------------------------------------

Section "Monitor"
  Identifier   "Monitor0"
  VendorName   "VIZ"
  ModelName    "VW26L HDTV10F"
  Option       "DPMS"
  HorizSync    31-70
  VertRefresh  50-80
  DisplaySize  1096 640 # CRT 17" (81 DPI @ 1024x768)
EndSection

Section "Monitor"
  Identifier   "Monitor1"
  VendorName   "SAM"
  ModelName    "SyncMaster"
  HorizSync    30-81
  VertRefresh  56-75
  DisplaySize  338 270 # CRT 15" (72 DPI @ 800x600)
  Option       "DPMS"
EndSection

# ------------------------------------------------------------------------
# Screen section: Pairing video cards and monitors
# ------------------------------------------------------------------------

Section "Screen"
  Identifier  "Screen0"
  Device      "Card0.0"
  Monitor     "Monitor0"
  SubSection  "Display"
    Depth  24
    Modes  "1360x768" "1024x768" "800x600" "640x480"
  EndSubSection
EndSection

Section "Screen"
  Identifier  "Screen1"
  Device      "Card0.1"
  Monitor     "Monitor1"
  SubSection  "Display"
    Depth  24
    Modes  "1280x1024" "1024x768" "800x600" "640x480"
  EndSubSection
EndSection

# ------------------------------------------------------------------------
# Layout section
# ------------------------------------------------------------------------

Section "ServerLayout"
  Identifier   "Multihead"
  Screen 0     "Screen0" 0 0
  Screen 1     "Screen1" LeftOf "Screen0"
  InputDevice  "Keyboard-base" "CoreKeyboard"
  InputDevice  "Mouse-base" "CorePointer"
EndSection

# ------------------------------------------------------------------------
# Additional sections
# ------------------------------------------------------------------------

# Xephyr can not use DRI, so it is not enabled
# Section "DRI"
#   Mode 0666
# EndSection

Section "ServerFlags"
  # Xinerama does not affect this configuration, so it is not enabled
# Option "Xinerama" "on"

  # Even if mouse detection fails, X will start
  Option "AllowMouseOpenFail" "yes"

  # VT switching is disabled
  Option "DontVTSwitch" "yes"

  # X restart (Ctrl+Alt+Backspace) is disabled
  Option "DontZap" "yes"
EndSection

However, I'm getting the following error now:

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x85) [0x80d0c73]

Fatal server error:
Caught signal 11.  Server aborting

Any ideas?

[agd5f]

If you are using xserver 1.3 update to 1.4 or newer.

[bertaboy]

Thank you, upgrading from 1.3 to newer has resolved this issue.