my laptop version is M54SR, old version of Axioo.
@Robert Heller :
VGA or DVI?
--> VGA
Which screen is blank? The notebook's or the LCD Projector or both?
--> LCD Projector
Is the LCD Projector displaying a message to the effect that an
unsupported sync rate or video mode in being used?
--> No. Nothing's happen. Just blank screen. I think it's becaused lcd projector mode maybe doesn't same with xorg but I don't know how to configure it.
On Sun, Sep 11, 2011 at 9:25 PM, Robert Heller <heller@xxxxxxxxxxxx> wrote:
At Sun, 11 Sep 2011 20:34:30 +0700 CentOS mailing list <centos@xxxxxxxxxx> wrote:VGA or DVI?
>
>
>
> dear guys,
>
> I have a problem between my CentOS 5.5 (on Axioo notebook) and LCD
> Projector. When I connect my notebook to LCD Projector, it can detect my
> notebook.
Which screen is blank? The notebook's or the LCD Projector or both?
> But when I press Fn + F7 to activate dual monitor between my notebook and
> LCD Projector it goes to blank screen. FYI, the LCD Projector is NEC but I
> don't know the series.
There are two different things going on here.
> I've tried to change display using dual head monitor but it has no effects.
"dual head monitor" normally means that the two monitors display
*different* stuff. This *usually* implies that the *video card*
specificly supports two independent monitors, usually by having two
frame buffers and two video outputs. This usually also implies *two*
Device sections in xorg.conf, eg you (logically) have two video cards
installed (even if they are both on the same physical 'card' or even same
physical 'chip').
*Most* laptops/notebooks DON'T have "dual head monitor" capable video
cards. What they have is a video output that goes to a logical "Y"
connection: *one* frame buffer+video output circuit, going to two video
connections, one being the internal LCD and the other being the VGA (or
DVI with newer laptops/notebooks) connector.
The Fn + F7 generally toggles between two or three states:
Video goes to the internal screen.
Video goes to the external screen.
Video goes to both screens (*some* laptops/notebooks can't do this, esp.
if the scan rates are incompatible).
In all cases there is only one video 'Device'. The Fn + F7's logic is
like pluging in different monitors into the *one* video output
connection on a desktop.
Probably not. It might be that you need to have different things in
> Do I need some driver??
your Screen section, partitularly in the Display SubSection. It might
be that the LCD Projector cannot handle the display mode(s) specificed.
Is the LCD Projector displaying a message to the effect that an
unsupported sync rate or video mode in being used?
> MIME-Version: 1.0
>
> and this is my xorg configuration :
> Section "Device"
> Identifier "Videocard0"
> Driver "openchrome"
> EndSection
>
> Section "Screen"
> Identifier "Screen0"
> Device "Videocard0"
> DefaultDepth 24
> SubSection "Display"
> Viewport 0 0
> Depth 24
> Modes "1280x800" "1024x768" "800x600" "640x480"
> EndSubSection
> EndSection
>
> Hope you guys can help me. Thanks.
>
>
> Andrew.
>
>--
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>
Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx
Deepwoods Software -- http://www.deepsoft.com/
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