problem setting up dual head on two separate graphics cards
I have a Benq G2420HDB screen connected to a nVidia GeForce 6200SE card and a Benq FP73G connected to a nVidia MCP61S onboard graphics card.
Code:
/sbin/lspci | grep VGA As expected, the onboard graphics controller was disabled when the pci-e card was attached, but lspci found it after I enabled support for multiple screens in the BIOS. The relevant parts (I think) of xorg.conf are: Code:
Section "Monitor" Xorg.0.log says: Code:
... Please ask for more information if needed. Thank you |
I think your problem is the "Screen N" lines in the "Device" sections. These are meant to distinguish between multiple outputs on the same card. When you put "Screen 1" in the "Device" section for the 6100, you are telling it to use the second screen on that card. As it only has one screen attached, there is no such thing and that device definition is dropped.
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Thank you for the response!
I tried removing the Screen N option, but now neither of the screens show anything! the last few lines in the Xorg log from that session is: Code:
(II) Loading sub module "int10" |
It looks like X is trying to soft-boot the card at 0:13:0 with the int10 module instead of using the nVidia POST routine. Try adding the line below to the "Device" section for that card.
Code:
Option "UseInt10Module" "false" |
What are the version numbers of your X server and the nVidia driver? They should show up near the top of the X log.
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I tried adding 'Option "UseInt10Module" "false"' as you instructed, but nothing seems to change.
X version and driver version: Code:
X Window System Version 1.3.0 |
Oops. I had thought you were using nvidia, not nv. As you may know, nv is an open-source driver developed in part by nVidia that only supports 2D acceleration whereas nvidia is a proprietary closed-source driver released by nVidia the supports 3D acceleration. There's also Nouveau, which is an open-source 3D driver developed by the community that I've never played with.
Unless you have problems with using proprietary software, I would recommend trying the nvidia driver. It generally seems to work better than nv, at least for me. Your current X configuration should work fine with nvidia, just change the Driver line from "nv" to "nvidia". If you don't have the driver installed, it's probably in your package manager as "nvidia-drivers". |
I installed the nvidia drivers, did some experimenting in xorg.conf and now it works!
Thank you very much for your help! |
Well.. It did work.
Now, the next time I booted, the second GPU (GeForce 6100) can't find the screen (FP73G). Code:
(II) NVIDIA(GPU-1): No display devices connected; falling back to: CRT-0 Code:
(II) NVIDIA(1): NVIDIA GPU GeForce 6100 nForce 405 (C61) at PCI:0:13:0 |
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