In article <00e501beee4f$db4f7fc0$[EMAIL PROTECTED]>,
jmaegli <[EMAIL PROTECTED]> wrote:
>Hello,
>I have been running Linux for 3 years now (started with RH 4.1) but I have
>never installed Linux on a laptop. Everything works well except when I
>startx my primary monitor goes blank (looses the signal from the laptop). I
>have an IBM Thinkpad 600E with a Neomagic 256AV video card installed using
>RH 6.0 with a 2.2.10 kernel. I have installed new Neomagic drivers (RH
>supplies drivers for the Neomagic 128... card only).  No matter what I have
>tried the monitor or projector looses the signal from the laptop. I have
>tried all the resolutions and I have switched between them without a
>positive result. If I CTRL-ALT Backspace out of X-Window the monitor comes
>alive again.  Any thoughts would be appreciated.


This works for me on my ThinkPad 600 with Neomagic 2160/128XD chip,
RedHat 5.2, and XFree86-3.3.3.1-1:



Power up and boot machine.  don't connect external monitor cable yet.
edit /etc/X11/XF86Config

In 'Section "Device"', uncomment these:
    Option     "intern_disp"
    Option     "extern_disp"

Restart the X server to make these take effect.

Now connect VGA video cable to to output on back. It should work
under X.

Note: this doesn't affect output on the external monitor when in text
mode (the monitor goes dark and then into its power save mode as if
getting no signal.)


To get text VTs working, flip to one (C-A-F1), then hit Fn-F7 on the keyboard
to do the hidden bios video mode switching.  (probably hit it again
to get both internal and external video).

Now, flipping between X and text VTs works fine and both
produce video on both LCD and external.

Previous experience suggests that hitting Fn-F7 while in a graphics
(X) VT is a bad idea; somthing gets screwed up.  So don't do that.
        
-- 
-- 
Steve Tell | [EMAIL PROTECTED] | http://www.cs.unc.edu/~tell | KF4ZPF
Research Associate, Microelectronic Systems Laboratory
Computer Science Department, UNC@Chapel Hill.   W:919-962-1845

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