detecting # of monitors on dualhead gfx card

[Jacob Zachariah]

Hi Andy,

Thanks much for the tip! I see that version 8174 & up
include the nvidia-xconfig utility & the
libnvidia-cfg.so.xxx library that it uses. 

nvidia-xconfig --query-gpu-info does print out the CRT
information.

For my target device though, for now, I have to stick
with 7676 drivers as I ran into some issues(as yet
unresolved) when i ran tests on the
NV_PIXEL_DATA_RANGE & PixelBufferObject using the
8174,8178 drivers. (They were unusually slow for some
reason. Same code ran fine with the 7676 drivers)

Is there a way to get the nvidia-xconfig/libnvidia-cfg
built/working with the 7676 drivers?

Or 

Would you know how the # of CRTs information, as seen
in the Xorg.0.log, gets passed to X?

Thanks much!

--- Andy Ritger <aritger at nvidia.com> wrote:

> 
> Hi Jacob,
> 
> You are correct that NV-CONTROL could only be
> queried once X
> is running.  However, with the latest NVIDIA
> drivers, you can use:
> 
>     nvidia-xconfig --query-gpu-info
> 
> to query basic information about the NVIDIA GPUs in
> your system;
> this will talk to the NVIDIA kernel module to probe
> the needed
> information.
> 
> I hope that helps,
> - Andy Ritger


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