nVidia GeoForce4 with external CRT
Allan Metts
ametts2 at mindspring.com
Mon Nov 17 17:03:10 UTC 2003
Hi Andy,
Thanks for the suggestion -- unfortunately, it looks like my situation is a
little different. I'm booting into runlevel 3 -- and text-mode screens
work without a hitch on both the LCD and CRT. Now that I'm doing this, I
can startx -- and at least get a good display on the laptop. But the
external CRT goes scrambled at this point.
Interestingly enough, dropping back out of X restores the CRT just fine to
text mode -- but the *laptop* display goes nuts. Cycling through the
internal/external display options with the Fn-F8 key combination gets me
back to good screens on both displays.
But I still don't have XWindows on my big monitor, which is what I need
when I'm in the office. Anyone have any suggestions for me?
Thanks in advance,
Allan
At 11:17 AM 11/17/2003, you wrote:
>On Monday 17 November 2003 16:08, Allan Metts wrote:
>
> > I have a laptop booting Fedora with a nVideo GeoForce4 440. The machine
> > boots up into X just fine, and everything looks great -- UNTIL I try to
> > send video to an external CRT. Then both the external CRT and the
> > laptop's LCD become totally scrambled.
> >
> > I've tried changing the defined monitor settings to match my CRT model, and
> > I've tried booting with the external CRT enabled. No dice.
> >
> > Can someone put me on the right trail to get this fixed?
>
>Does your laptop have a Fn-key combo to swap between the main LCD and
>external
>VGA? On my Inspiron 5150 I despaired of getting Twinview to work, due to
>very strange artefacts on the VGA port video only (as if the pixel clock was
>being modulated). However, I found that if I did Fn-F8 at boot-time, before
>the grub screen, then the BIOS correctly inited the second head, and twinview
>works great after that. So I would try that and see if there are any updated
>laptop BIOSes about.
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