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Old 10-24-02, 09:30 AM   #1
D. Michaud
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Join Date: Oct 2002
Posts: 4
Question Quadra4 + Quick TwinView question

I'm trying to use TwinView (one CRT, one DFP) with a NVidia Quadro4-700 board.

I have these relevant settings in the Device section of my XF86Config-4 file:

Option "TwinView"
Option "SecondMonitorHorizSync" "30-80"
Option "SecondMonitorVertRefresh" "50-100"
Option "MetaModes" "1280x1024,1280x1024"
Option "TwinViewOrientation" "RightOf"
Option "ConnectedMonitor" "CRT,DFP"

I know that the refresh rates and modes are good. I can successfully use either display device by itself.

However, when using the above twinview configuration I always get the following error in the XFree86.0.log file:

(EE) NVIDIA(0): Failed to read mapping of display devices to CRTCs
(EE) Screen(s) found, but none have a usable configuration.

Does anyone know what might be happening? Perhaps twinview doesn't work with the Quadro4-700? (Although the specs say it supports something called "nView")

Any help would be appreciated.

D. Michaud

Last edited by D. Michaud; 10-24-02 at 10:11 AM.
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Old 10-24-02, 12:12 PM   #2
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Posts: 2,262

I wouldn't think so, but does putting a space after the comma in the ConnectedMonitor option help?

Yeah, nView == TwinView...
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Old 10-24-02, 12:39 PM   #3
D. Michaud
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Join Date: Oct 2002
Posts: 4
Default Tried that..

I tried using a space there, but it didn't help.

Interestingly, if I use only

Option "ConnectedMonitor" "CRT"


Option "ConnectedMonitor" "DFP"

with twinview enabled X appears to start up but the display is black and the monitor is not getting a sync.

with twinview disabled either monitor will work perfectly fine with the above ConnectedMonitor options.

As I said before, with twinview enabled with either

Option "ConnectedMonitor" "CRT, DFP"

or leaving out the ConnectedMonitor option I get that weird X error I described in the earlier message.

I'm using the 3123 drivers
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