I've experienced the "wavy" image syndrome in X and Windows. From what I
noticed is that it comes from a refresh rate that is slightly higher than
the monitor likes. Try reducing it a notch or two. If you have the
monitor's spec sheet or manual, look-up the refresh rates for the required
resolution.
Ian Christie
--------------------------------------------------------------------------------------
When the least they could do to you was everything,
then the most they could do to you suddenly held no terror.
-- (Terry Pratchett, Small Gods)
At 15:52 09/07/2001 -0600, you wrote:
>I've been working on a Dell Latitude C600 with an
>ATI Rage 128 Mobility LF (or something like that).
>I want to be able to start X up on an external
>monitor (as opposed to switching using the FN-F8
>key combo after X has already started on the LCD).
>My understanding was that adding the
>Option "Display" "CRT" line to the Device section
>would do this--and indeed it does, except that
>instead of starting up clear (like the screen
>looks if I switch over using the FN-F8 combo),
>it's all wavy and jittery--not flicker such as
>you get with a low refresh rate, but more like
>every other or every third line of pixels is moving
>from side to side very rapidly, or something.
>
>Like I said, if I use the CRT/LCD button to switch,
>it works fine. But I want to be able to start up
>on the CRT so that I can get a better resolution
>and refresh rate. Any ideas? Thanks in advance--
>
> --Daniel
>
>P.S. I'm running Debian GNU/Linux unstable,
>XFree86 4.1.0.1 (according to X -version) on
>kernel 2.4.9. Here's my XF86Config. Let me know
>if you need more info or have an idea.
>
>XF86Config:
>
>Section "ServerLayout"
> Identifier "XFree86 Configured"
> Screen 0 "Screen0" 0 0
> InputDevice "Mouse0" "CorePointer"
> InputDevice "Keyboard0" "CoreKeyboard"
>EndSection
>
>Section "Files"
> RgbPath "/usr/X11R6/lib/X11/rgb"
> ModulePath "/usr/X11R6/lib/modules"
> FontPath "/usr/X11R6/lib/X11/fonts/misc/"
> FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
> FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
> FontPath "/usr/X11R6/lib/X11/fonts/CID/"
> FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
> FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
>EndSection
>
>Section "Module"
> Load "dbe"
> Load "dri"
> Load "extmod"
> Load "glx"
> Load "pex5"
> Load "record"
> Load "xie"
>EndSection
>
>Section "InputDevice"
> Identifier "Keyboard0"
> Driver "keyboard"
>EndSection
>
>Section "InputDevice"
> Identifier "Mouse0"
> Driver "mouse"
> Option "Protocol" "GlidePointPS/2"
> Option "Device" "/dev/psaux"
>EndSection
>
>Section "Monitor"
> Identifier "Monitor0"
> VendorName "HWP"
> ModelName "HP75"
> HorizSync 30.0 - 86.0
> VertRefresh 50.0 - 160.0
>EndSection
>
>Section "Device"
> Option "Display" "CRT"
> Identifier "Card0"
> Driver "ati"
> VendorName "ATI"
> BoardName "Rage 128 Mobility LF"
> BusID "PCI:1:0:0"
>EndSection
>
>Section "Screen"
> Identifier "Screen0"
> Device "Card0"
> Monitor "Monitor0"
> DefaultDepth 24
> SubSection "Display"
> Depth 24
> Modes "1280x960"
> EndSubSection
>EndSection
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