Re: NVidia on Compaq presario and video output

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On 12/13/07, François Patte <francois.patte@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
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> Lonni J Friedman a écrit :
> > On 12/12/07, François Patte <francois.patte@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
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> >> Lonni J Friedman a écrit :
> >>
> >>>> 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.
> >> Nvidia readme:
> >>
> >> <cite>
> >>
> >> All mobile NVIDIA chips support TwinView. TwinView on a laptop can be
> >> configured in the same way as on a desktop machine (please refer to
> >> Appendix G); note that in a TwinView configuration using the laptop's
> >> internal flat panel and an external CRT, the CRT is the primary display
> >> device (specify its HorizSync and VertRefresh in the Monitor section of
> >> your X config file) and the flat panel is the secondary display device
> >> (specify its HorizSync andVertRefresh through the SecondMonitorHorizSync
> >> and SecondMonitorVertRefreshoptions).
> >>
> >> </cite>
> >
> > Sure, but that quote has no relevance to what you were discussing originally.
>
> I just said that when I plug an external monitor (whatever LCD or CRT)
> on the VGA plug of my laptop, the display is on this external display
> and *not* on the LCD panel of the laptop at boot time and I have to
> switch the display (to LCD or LCD+CRT) using the keys (Fn-F5 on
> Toshiba). And it is always like this (Toshiba, Dell, Sony). But you
> maybe have another meaning for "primary".

Again, you're confusing hardware behavior & driver behavior.  The two
are not necessarily the same.

>
> >
> >>> I'm not sure where you got this from, but its not true.
> >> Maybe no longer true, if your laptop is new (mine is one year old) and
> >> has a dvi connector. We can read in Nvidia readme:
> >>
> >> <cite>
> >>
> >> NOTE: anything attached to a 15 pin VGA connector is regarded by the
> >> driver as a CRT. "DFP" should only be used to refer to digital flat
> >> panels connected via a DVI port.
> >>
> >> </cite>
> >
> > Again, that has nothing to do with your original statement.  You've
> > proven that you can read the README, but you apparently don't
> > understand it very well.
>
> I just wanted to say, using this statement (and it works like this for
> me since fc4), that in the xorg.conf file the values put on the line
> "CRT" are for the configuration of the external monitor whatever it is,
> LCD or CRT or beamer.

And this is incorrect.  If the external display is a DFP, its going to
be treated as such.  An external display device is not always a CRT.


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