eMagin z800 + LCD under Linux Anyone with stereo CRT + DFP success?
Has anyone succeeded in activating stereo on the eMagin z800 (or similar stereo device in "Stereo mode 3") while simultaneously driving a regular (non-stereo LCD) monitor? My experience, using an nVidia Quadro FX 1500, has been that any attempt to do so, even specifying a supposedly appropriate Modeline and requesting identical setup through metamodes gives output in the xorg log as:

(WW) NVIDIA(0): Stereo is not available in TwinView when metamodes contain
(WW) NVIDIA(0): non-identical modelines.
(II) NVIDIA(0): Disabling stereo.

It seems that the only successful incantation that brings up stereo is with the DFP disabled -- and even then, I'm finding that the timing is often incorrect, resulting in a jittering image rather than valid stereo (although we did succeed once, I'm finding it a bashing-head-against-brick-wall experience trying to recreate the right conditions...)

Evidently, I don't know nearly enough about modelines and all the other subtleties of xorg...

The same experience holds regardless of enabling/disabling pretty much any imaginable combination of options listed in the extract of the xorg.conf file, below.

Any useful suggestions would be most welcome... thanks!

Section "ServerFlags"
Option "Xinerama" "0"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "CRT-0"
HorizSync 30 - 55
VertRefresh 60.0
Option "DPMS"
Option "Stereo" "3"
Option "dpms"
#both Modeline options from 'netland
#Modeline "800x600_60" 38.21 800 832 976 1008 600 612 618 631
Modeline "800x600_60" 38.41 800 832 912 1024 600 601 604 622 -HSync +Vsync
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "Quadro FX 1500"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "1"
Option "TwinViewXineramaInfoOrder" "DFP-0"
Option "metamodes" "CRT: 800x600_60, DFP: nvidia-auto-select +0+0"
#Option "metamodes" "CRT: 800x600_60, DFP: NULL"
#Option "metamodes" "CRT: 800x600_60, DFP: 800x600_60"
SubSection "Display"
Depth 24
EndSubSection
Option "AllowDFPStereo" "true"
Option "UseEDIDdpi" "DFP-0"
EndSection

Section "Extensions"
Option "Composite" "Disable"
EndSection
Has anyone succeeded in activating stereo on the eMagin z800 (or similar stereo device in "Stereo mode 3") while simultaneously driving a regular (non-stereo LCD) monitor? My experience, using an nVidia Quadro FX 1500, has been that any attempt to do so, even specifying a supposedly appropriate Modeline and requesting identical setup through metamodes gives output in the xorg log as:



(WW) NVIDIA(0): Stereo is not available in TwinView when metamodes contain

(WW) NVIDIA(0): non-identical modelines.

(II) NVIDIA(0): Disabling stereo.



It seems that the only successful incantation that brings up stereo is with the DFP disabled -- and even then, I'm finding that the timing is often incorrect, resulting in a jittering image rather than valid stereo (although we did succeed once, I'm finding it a bashing-head-against-brick-wall experience trying to recreate the right conditions...)



Evidently, I don't know nearly enough about modelines and all the other subtleties of xorg...



The same experience holds regardless of enabling/disabling pretty much any imaginable combination of options listed in the extract of the xorg.conf file, below.



Any useful suggestions would be most welcome... thanks!



Section "ServerFlags"

Option "Xinerama" "0"

EndSection



Section "Monitor"

Identifier "Monitor0"

VendorName "Unknown"

ModelName "CRT-0"

HorizSync 30 - 55

VertRefresh 60.0

Option "DPMS"

Option "Stereo" "3"

Option "dpms"

#both Modeline options from 'netland

#Modeline "800x600_60" 38.21 800 832 976 1008 600 612 618 631

Modeline "800x600_60" 38.41 800 832 912 1024 600 601 604 622 -HSync +Vsync

EndSection



Section "Device"

Identifier "Videocard0"

Driver "nvidia"

VendorName "NVIDIA Corporation"

BoardName "Quadro FX 1500"

EndSection



Section "Screen"

Identifier "Screen0"

Device "Videocard0"

Monitor "Monitor0"

DefaultDepth 24

Option "TwinView" "1"

Option "TwinViewXineramaInfoOrder" "DFP-0"

Option "metamodes" "CRT: 800x600_60, DFP: nvidia-auto-select +0+0"

#Option "metamodes" "CRT: 800x600_60, DFP: NULL"

#Option "metamodes" "CRT: 800x600_60, DFP: 800x600_60"

SubSection "Display"

Depth 24

EndSubSection

Option "AllowDFPStereo" "true"

Option "UseEDIDdpi" "DFP-0"

EndSection



Section "Extensions"

Option "Composite" "Disable"

EndSection

#1
Posted 07/24/2008 05:30 PM   
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