[ltp] T23 and external CRT

[Markus Alt]

m-lund@post8.tele.dk wrote:
> 
> Tino Keitel <tino.keitel@innominate.com> wrote:
> > On Wed, Apr 10, 2002 at 23:20:24 +0200, Morten Lund wrote:
> > > Hi
> > >
> > > I have just aquired a Thinkpad T23, and everything works
> > great, except for
> > > one thing... The refresh rate on my external CRT. However
> > I am able to get
> > > the correct resolution (LCD=1024x768, CRT=1280x1024)
> > >
> > > But I cannot get it to display more than 60Hz on my CRT. I
> > have tried to
> > > insert Modelines in my XF86Config-4 as well. No luck. It
> > looks like it just
> > > ignores the ModeLines.
> > >
> > > Distribution: Mandrake 8.2, X version 4.2.
> > >
> > > Is it possible to get more than 60Hz / 1280x1024 on my CRT
> > with the current
> > > version of X11?
> >
> > Does your T23 use a Trident graphics chip?
> Nope, Savage XI

Morten, I guess you meant a SuperSavage, correct?

I had this working on a T23 with a SuperSavage and 1400x1050@60Hz on the
LCD as well as 1400x1050@75Hz on the CRT (both at 16 bit depth). There's
a driver on the S3 website at https://ranger.s3graphics.com/290-298drv
(file "Savage_4.1.0_binary.tgz") which is in fact for the *Savage*
chips, not the SuperSavage, but works fine for the latter however. With
the standard Savage driver in the XFree86 distribution, I also got no
more than 60Hz on the CRT.

This was with SuSE 7.3 which has XFree86 version 4.1.0-45 on the media.
I later upgraded to 4.2.0-2 and although the S3 driver was build for
4.1.0, it still worked well.

Lately I've installed SuSE 8.0 which comes with XFree86 4.2.0-64.
Unfortunately this level didn't support the S3 driver any longer: The X
server immediately coredumped after starting it. The same happens with
the Savage driver which is developed by Tim Roberts and available at
http://www.probo.com/timr/savage40.html . I've already sent Tim a mail
to let him know.

In order to be able to run the "good old" S3 driver again, I've
downgraded the XFree86 RPMs on my machine back to the 4.2.0-2 upgrade
level for SuSE 7.3. Works great and I can use the CRT again without
going mad because of the flicker: Happy camper.

Bottom line: Give the driver from the S3 site a try and if it doesn't
like your XFree86 version (I don't know the exact level Mandrake 8.2
comes with), try downgrading to a lower level.

HTH,
Markus

-- 
Markus Alt
IBM Lab Boeblingen, Germany
altmark@de.ibm.com

----- The Linux ThinkPad mailing list -----
The linux-thinkpad mailing list home page is at:
http://www.bm-soft.com/~bm/tp_mailing.html