************************************************************
Section "Monitor"
* *Identifier "monitor1"
* *VendorName "Plug'n Play"
* *HorizSync 30-70
* *VertRefresh 50-160
* *ModeLine "1024x480" * *65.00 1024 1032 1176 1344 * 480 *488 *494 *563 -hsync -vsync
EndSection
Section "Monitor"
Identifier "monitor2"
VendorName "Plug'n Play"
HorizSync 30-70
VertRefresh 50-160
ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync
EndSection
Section "Device"
Identifier "device1"
VendorName "nVidia corp."
BoardName "GF2MX400"
Driver "nvidia"
Option "DPMS"
BusID "PCI:xx:xx"
Screen 0
EndSection
Section "Device"
Identifier "device2"
VendorName "sis"
BoardName "sis 630"
Driver "sis"
Option "DPMS"
BusID "PCI:YY:YY"
Screen 1
EndSection
Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24
Subsection "Display"
Depth 8
Modes "1024x768" "800x600" "640x400"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 32
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
Section "Screen"
Identifier "screen2"
Device "device2"
Monitor "monitor2"
DefaultColorDepth 24
Subsection "Display"
Depth 8
Modes "1024x768" "800x600" "640x400"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 32
Modes "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
Section "ServerLayout"
Identifier "layout1"
Screen 0 "screen1"
Screen 1 "screen2" leftOf "screen1"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection
Должно работать - тогда у тебя screen 0 будет держать OpenGL и всё такое, а screen 1 будет Framebuffer. X-сы будут запускаться на обоих, но окна у них отдельные(если не активировать xinerama). Так что запусти на одном XTerm, а на другом что-нить ещё
