Very Computer

Editing the /etc/X11/XF86Config-4 file, I've tried setting up a specific
"Modeline", with the name "1400x1050crt", using the same specs that I
know work for a desktop ATI Rage 128 card and the same monitor.  I make
it one of the options in the "Screen" section of the config file, and
try to switch to it using "ctl-alt-(keypad)+".  This didn't work, I
still got 60 Hz refresh rates.  This is the case whether I am in
internal/external monitor mode, or in external only mode.

A very closely related issue is that I can't seem to force a modeline
for 1024x768, so that I might drive an older LCD projector.

I've spent nearly an entire afternoon looking over the net.  There's
been a lot of discussion of older ATI cards, and with XFree86-3, but I
haven't been able to find an acceptable solution for my setup.  Is there
one?  Do newer versions of XFree86 fix these problems?  Is there an
affordable commercial X server that might fix these problems?

Thanks,

-EJR

for 1024x768
http://www.veryComputer.com/
If you want 1280x960, see
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Quote:> How can I force a specified refresh rate for an external monitor on a
> Dell Inspiron 8000 with the ATI Rage 128 Mobility (M4), with RH-7.1,
> using XFree86-4.0.3?  I can switch to the external monitor just fine
> using "Fn-F8", but it is always at a 60Hz refresh rate.  This is a
> little * the eyes.

At least that worked for me using a docking station.
--
?yvind Gjerstad  Systems dept DFDS Tollpost-Globe AS  N-6301 ?ndalsnes/Norway

http://www.veryComputer.com/#16

I'm using XFree86 4.0.2, but this looks like a driver-specific option
and should be somewhat portable to later versions. Namely, in the Device
section for your ati card, use

Option "crt_screen"

Which causes the card to drive the external monitor only if both
external and native panel displays are detected.

I used sax2 to create a monitor, screen, and modes for the config file,
and now I'm happily chugging along at depth 16, 1024x768 and a blazing
refresh rate somewhere well above 60.

Cheers,
Jim

Rich

Quote:> After many, many hours spent on this problem, and many of those spent
> reading documentation on my monitor at sub-50 refresh-rates, I found
> this juicy tidbit in the ati driver documentation:

> http://www.xfree86.org/4.0.2/ati5.html#16

> I'm using XFree86 4.0.2, but this looks like a driver-specific option
> and should be somewhat portable to later versions. Namely, in the Device
> section for your ati card, use

> Option "crt_screen"

> Which causes the card to drive the external monitor only if both
> external and native panel displays are detected.

> I used sax2 to create a monitor, screen, and modes for the config file,
> and now I'm happily chugging along at depth 16, 1024x768 and a blazing
> refresh rate somewhere well above 60.

> Cheers,
> Jim