Re: NVidia on Compaq presario and video output

On 12/12/07, François Patte <francois.patte@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
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Martin Marques a écrit :
François Patte escribió:

Yes you will have to. There are 2 problems (as far as I can see on my
laptop (Toshiba qosmio)):

Did you configure xorg.conf by hand or did you use the nvidia-setting tool?

By hand.


1- toggle LCD only, beamer Only, both. This is done with some Fn-F* key
and this must be done *before* loading the nvidia driver ie. you have to
do it during the "grub" sequence.

This didn't work for me. :-(

At least it should work during BIOS sequence... did you try to put a
looooooong time for grub before booting the default OS?

nvidia card gives priority to "CRT", the external display, so, if you
plug an external screen/beamer, the display is on this one by default.

That was the case for the nvidia X driver, however never for the
hardware. And its no longer accurate for the driver. For many
notebooks, the internal DFP is given priority.

Try to put a long time before booting in grub.conf then, once you get
the display on your external device toggle the Fn-F* keys. On my laptop
this is done using Fn-F5 and I get this cycle:

CRT-->LCD-->nothing-nowhere(?)-->LCD-->LCD+CRT (at last)

On dell laptop this is Fn-F8, on compaq, I don't know.


2- you must have a specific xorg.conf with twinview enabled.

Ahhh.

Here are the modified sections:

Section "Monitor"
Identifier "Monitor0"
ModelName "LCD Panel 1024x768"
HorizSync 31.5 - 50.0
VertRefresh 56.0 - 65.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
Option "TwinView" "True"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "ExactModeTimingsDVI" "TRUE"
Option "ModeValidation" "DFP-0: NoVesaModes"
Option "TwinViewOrientation" "Clone"
Option "MetaModes" "CRT-0: 1024x768, DFP-0: 1024x768"
Option "HorizSync" "CRT-0: 50-100; DFP-0: 31.5-50"
Option "VertRefresh" "CRT-0: 60-120; DFP-0: 60"
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection


Comments.

1- You must be careful with HorizSync and VertRefresh values you could
destroy your panel with wrong values...

Not with the nvidia driver, unless the EDID in the panel is wrong.


2- As I said, CRT stands for "external device" even if it is a LCD panel.

I'm not sure where you got this from, but its not true.

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