[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Xproblem - modelines?



Quoting Mats Ström (d99msr@efd.lth.se):
> 
> I am trying to get X working on S3 trio3D card. My XFree86 is
> version 3.3.6 which supports the trio3D. Unfortunately it is
> very picky about its modelines. There some recommended mode-
> lines in the manual:

What manual is that? Something originating from X or from trio?

> 	Modeline "1024x768"  75  1024 1048 1184 1328  768  771  777  806 -hsync
> -vsync
> 	Modeline "640x480"  45.80 640 672 768 864 480 488 494 530 -hsync -vsync
> 	Modeline "800x600"  36      800  824  896 1024    600  601  603  625
> 
> The problem is this: I have an old monitor. ERGO: When I attempt
> to start X, I get the following:
> 	(--) SVGA: Mode "640x480" needs vert refresh rate of 100.02 Hz. Deleted.
> 	(--) SVGA: Mode "1024x768" needs hsync freq of 56.48 kHz. Deleted.
> 	(--) SVGA: Mode "800x600" needs hsync freq of 35.16 kHz. Deleted.
> 
> How do I find working modelines for my system? I cant handle the
> recommended ones. They demand to much of my grumpy old monitor...

When you install the X server and create /etc/X11/XF86Config,
you should get many more modes than you report here. For example,
you quote (I'm splitting the longer lines):

#          640x480 @ 100 Hz, 53.01 kHz hsync
Modeline  "640x480"     45.8   640  672  768  864   480  488  494  530
 -HSync -VSync

but I've got all these:

#          640x480 @ 60 Hz, 31.5 kHz hsync
 Modeline "640x480"     25.175 640  664  760  800   480  491  493  525

#          640x480 @ 72 Hz, 36.5 kHz hsync
 Modeline "640x480"     31.5   640  680  720  864   480  488  491  521

#          640x480 @ 75 Hz, 37.50 kHz hsync
 Modeline "640x480"     31.5   640  656  720  840   480  481  484  500
 -HSync -VSync

#          640x480 @ 85 Hz, 43.27 kHz hsync
 Modeline "640x400"     36     640  696  752  832   480  481  484  509
 -HSync -VSync

some of which ought to be within the capabilities of your monitor.

Is it possible that you've got hold of a piece of documentation which,
while being selective for the trio's sake, was written by someone who
had a high spec. monitor and didn't consider people who were still
using an old model becuase "they wouldn't have this card". (Most
computer literature tends to be written like that.)

Cheers,

-- 
Email:  d.wright@open.ac.uk   Tel: +44 1908 653 739  Fax: +44 1908 655 151
Snail:  David Wright, Earth Science Dept., Milton Keynes, England, MK7 6AA
Disclaimer:   These addresses are only for reaching me, and do not signify
official stationery. Views expressed here are either my own or plagiarised.


Reply to: