NVidia on Compaq presario and video output
Lonni J Friedman
netllama at gmail.com
Wed Dec 12 22:17:03 UTC 2007
On 12/12/07, François Patte <francois.patte at math-info.univ-paris5.fr> 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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L. Friedman netllama at gmail.com
LlamaLand https://netllama.linux-sxs.org
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