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Old 12-12-06, 05:48 AM   #1
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Join Date: Dec 2006
Posts: 3
Cool Dualhead WITHOUT TwinView ????

Hi there!

I'm having the following problem:
I managed to configure my system with 2 separate desktops for use with two CRT monitors on my GeForce MX 440. The driver I used was from the 60 series. Then I upgraded the driver and that worked with NVIDIA driver 8178 at most. Anything newer than that failed to work for me, or at least to say - no with two separate desktops. And I do NOT want to use TwinView.
So I sticked with 8178 for a while, but now that 90's is available, I decided to ask for help.

I've attached dmesg output, lspci output, Xorg logs for the working and not working driver, along with the Xorg.conf file used.

Thanks in advance!
Attached Files
File Type: txt dmesg_output.txt (10.5 KB, 100 views)
File Type: txt lspci_output.txt (5.3 KB, 113 views)
File Type: log Xorg.8178.log (32.5 KB, 87 views)
File Type: log Xorg.9631.log (17.7 KB, 85 views)
File Type: txt xorg.conf.txt (4.4 KB, 84 views)
carpon is offline   Reply With Quote
Old 12-12-06, 10:22 AM   #2
NVIDIA Corporation
Join Date: Dec 2004
Posts: 8,763
Default Re: Dualhead WITHOUT TwinView ????

The problem is:
(EE) NVIDIA(1): Unable to find available Display Devices for screen 1.

This problem also existed in 1.0-8178, however due to a bug in the driver, you were able to get away with it anyway. You should be specifying:
Option "ConnectedMonitor" "CRT"

rather than naming specific CRTs, since only one is detected. If you need further assistance, please generate and attach an nvidia-bug-report.log.

netllama is offline   Reply With Quote
Old 12-13-06, 12:29 AM   #3
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Join Date: Dec 2006
Posts: 3
Default Re: Dualhead WITHOUT TwinView ????

Thanks for the reply.

I solved my problem with a little play with the "Option"s used.
The driver really didn't detect my second CRT, because the first monitor I use is EDID capable, but the second isn't.

In the xorg.conf I attached in my first post you may find that I use the "ConnectedMonitor" option - well, when I replaced that with "UseDisplayDevice" followed by the same monitor names - CRT-0 and CRT-1, in the appropriate sections, my multiple displays setup is back.

The problem really is in the arrangement of the displays - I wanted my 17" monitor to be connected to the D-SUB connector, for comfort accross the multiple OSes installed on my machine. The above option provided a way for me to specify which monitor should be first, and which - second. On the NON-EDID monitor I used Option "UseEDID" "FALSE" though.

Anyway - thanks!
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