tripple monitor setup

[swampfootjoe]

Hi,

I have a tripple monitor setup up and running with two nvidia cards (geforce2 agp dual head / geforce2 pci single head)
X runnes fine but I am not to happy with the performance, if have to use xinerama and that really slows thing down.

Does anyone know a way to enable glx on all monitors (not just the main screen) and how to improve performance with xinerama

thanks by forehand

Swamp Foot


Here is my XF86Config ;######
###
### Tripple Monitor Setup with geforce2 agp(dual)/pci(single) head cards
### info: swampfootjoe@hotmail.com
###
### To do's :
### - Enable glx on all three monitors
### - Find a way to improve xinerama performance or finding
### other solution
###


# Enable Xinerama
Section "ServerFlags"
Option "Xinerama" "true"
EndSection

Section "Files"
FontPath "unix/:7100"
FontPath "/usr/lib/X11/fonts/Type1"
FontPath "/usr/lib/X11/fonts/CID"
FontPath "/usr/lib/X11/fonts/Speedo"
FontPath "/usr/lib/X11/fonts/misc"
FontPath "/usr/lib/X11/fonts/cyrillic"
FontPath "/usr/lib/X11/fonts/100dpi"
FontPath "/usr/lib/X11/fonts/75dpi"
EndSection

Section "Module"
Load "GLcore"
Load "bitmap"
Load "dbe"
Load "ddc"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "record"
Load "speedo"
Load "type1"
Load "vbe"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "keyboard"
Option "CoreKeyboard"
Option "XkbRules" "xfree86"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "Emulate3Buttons" "true"
Option "ZAxisMapping" "4 5"
EndSection

Section "Device"
Identifier "Nvidia0"
Driver "nvidia"
BusID "pci:1:0:0"
Option "NoLogo"
Option "NoBandWidthTest"
Option "RenderAccel"
Option "IgnoreEDID" "1"
Option "DPMS"
Screen 0
EndSection

Section "Device"
Identifier "Nvidia1"
Driver "nvidia"
BusID "pci:1:0:0"
Option "NoLogo"
Option "NoBandWidthTest"
Option "RenderAccel"
Option "IgnoreEDID" "1"
Option "DPMS"
Screen 1
EndSection

Section "Device"
Identifier "Nvidia2"
Driver "nvidia"
BusID "pci:2:10:0"
Option "NoLogo"
Option "NoBandWidthTest"
Option "RenderAccel"
Option "IgnoreEDID" "1"
Option "DPMS"
# Screen 2 # don't use "screen" on the pci card
EndSection

Section "Monitor"
Identifier "Generic Monitor"
HorizSync 28-150
VertRefresh 75
Option "DPMS"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Nvidia0"
Monitor "Generic Monitor"
DefaultDepth 16
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Nvidia1"
Monitor "Generic Monitor"
DefaultDepth 16
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen2"
Device "Nvidia2"
Monitor "Generic Monitor"
DefaultDepth 16
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768"
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0"
Screen 1 "Screen1" LeftOf "Screen0"
Screen 2 "Screen2" RightOf "Screen0"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
EndSection

[rednuht]

These quotes are from the README for the latest NVidia driver, maybe you should check in with the Xinerama developers.

o Both display devices share one frame buffer. Thus, all the
the functionality present on a single display (e.g. accelerated
OpenGL) is available on TwinView.

OpenGL + Xinerama
Currently, OpenGL will not display to anything other than the
first head in a Xinerama environment.

[swampfootjoe]

Thnx for the info,

I hope there is a way to have twinview also manage screens accross
video cards (nvidia ones with the same chipsets), up to now twinview will ony manage the two heads on one card, not including the head on the other card

I will contact the xinerama development crew, thanx for the quick reply

greets

Swamp Foot