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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.
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...
2- As I said, CRT stands for "external device" even if it is a LCD panel.
3- I put for CRT common ranges for beamers.
4- Option "TwinView" "True" does the job for 2 displays
5- Option "TwinViewOrientation" "Clone" means that you have exactly the
same display on both devices.
6- Other options are not specific to twinview...
7- Resolutions: I have a 1280x800 LCD panel on my laptop, I force both
devices to use a 1024x768 resolution because it is the standard for most
beamer. With these settings, I get a centered diplay on my laptop screen
with 1024x768 resolution, and a full display on the beamer and no parts
of both screens are hidden.
My laptop is a Toshiba qosmio F20 with NVIDIA GPU GeForce Go 6600 video
card.
Here is how I use this: I made two xorg.conf files in /etc/X11: one is
xorg.conf-normal, the other: xorg.conf-beamer (I think that what is
inside each is quite understable...)
I put two kernel entries in grub.conf:
title Fedora (2.6.23.1-49_1.fc8 normal)
root (hd0,0)
kernel /boot/vmlinuz-2.6.23.1-49_1.fc8 ro normal root=LABEL=/ \
rhgb quiet
initrd /boot/initrd-2.6.23.1-49_1.fc8.img
title Fedora (2.6.23.1-49_1.fc8 beamer)
root (hd0,0)
kernel /boot/vmlinuz-2.6.23.1-49_1.fc8 ro beamer root=LABEL=/ \
rhgb quiet
initrd /boot/initrd-2.6.23.1-49_1.fc8.img
During the boot sequence I toggle the arrow keys in order to stop the
grub default time. Once I get the display on the beamer (which set by
default for nvidia chips), I toggle my Fn-F5 keys upto get both display,
then I choose the grug entry with beamer option.
*And* in my /etc/rc.local file I added this:
ECRAN=`cat /proc/cmdline | cut -d" " -f2`
if [ "$ECRAN" = "beamer" ]; then
cp /etc/X11/xorg.conf-beamer /etc/X11/xorg.conf
else
cp /etc/X11/xorg.conf-normal /etc/X11/xorg.conf
fi
So, the "adequat" xorg.conf file is used....
That's it.
Hope this help.
- --
François Patte
UFR de mathématiques et informatique
Université Paris Descartes
45, rue des Saints Pères
F-75270 Paris Cedex 06
Tél. +33 (0)1 44 55 35 61
http://www.math-info.univ-paris5.fr/~patte
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