On Mon, Feb 21, 2000 at 09:03:20PM -0600, Katherine Harris wrote:
> I, perhaps foolishly, have transformed my brother's Toshiba 2515CDS
> Satellite into a RedHat 6.1 box. It all works! except for, naturally, X.
> Here's the story:
> 2515CDS Toshiba Satellite.
> The video chip is a Chips & Tech 69000, with 2 MB RAM. This chip is
> supported under XFree86 3.3.3. I believe I have XFree86 3.3.5, so that
> should work.
> The screen is your typical LCD screen. I have NO idea what the refresh
> rate is, save only that another laptop in the house that's still running
> Windows can manage 800x600 16bpp with no problem.
>
> Right now, when I load X, I get a teensy screen, that I think ends up being
> about 320x400 with 256 colors. (And the fonts are really hideous, but I
> hear that's normal.) I've tried running all the startx color depth
> switches, but it ends up looking pretty much the same. I've tried cycling
> through all the resolutions, but only the 320x400 works. I've tried
> XConfigurator, I've tried XF86Config. I've tried setting up my XF86Config
> the same as one guy who says on his webpage that he got X to work on the
> same model. Nothing helps. I haven't quite yet gotten to exorcism, but
> I'm beginning to contemplate it.
You probably need to increase the scan rate settings in the
/etc/X11/XF86Config file. I use the following:
HorizSync 31.5-57.0
VertRefresh 50-90
I run at 1024x768 at 16bpp without problems so I think 800x600 should
be safe. To see what your scan rates are set at execute the following:
grep "HorizSync\|VertRefresh" /etc/X11/XF86Config
I've been told that you can use higher numbers without problems on LCD
displays because they aren't deflecting beams the same way as CRTs. I
guess these maximum rates have the effect of disallowing modelines
which require higher rates and consequently you get only 320x400. If
anyone on the list knows otherwise, please speak up.
This is an example of a modeline:
Modeline "800x600" 69.65 800 864 928 1088 600 604 610 640 -hsync -vsync
If you have a lot of modelines in your /etc/X11/XF86Config file, then
you should be able to just edit the scan rates and restart X. If you
don't have a valid 800x600 modeline in that file, you can use
XF86Setup to make a new one but you have to install two RPMs if they
are not already there.
XFree86-XF86Setup-3.3.5-3
XFree86-VGA16-3.3.5-3
Using XF86Setup, you can specify the scan rates in the Monitor
section. I think that's what its called.
--
Ron Golan
[EMAIL PROTECTED]
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