🚀 go-pugleaf

In comp.os.linux.hardware patrum <patrum@erols.com> wrote:
> Actually my monitor has a 13W3 connector but I already have it working with 640 x 480.  Just wanted to know if
> anyone had more specs on how to set it up for 1200 x 1024 or 800 x 600.  Thanks for the links though.

The esential specs you need are that the monitor  runs at a
hsync of 61.8 kHz and vsync of 66 Hz.

A result of this spec is that you will get about 
1152 x 864 on the screen.

Actually with   enough ram in your video card you should be able to get
1200x1024 . 

At 32bpp  you would need over 4 meg of video ram.
You should be able to run at 16 or 24 bpp with a 4 meg video card.

But you can always display black space if you are short of ram.
you must always run at  66khz, 66hz..
so you must be looking at 640x480 the picture must only be in part
of the screen.

given a XF86Config like this that works ...

Modeline "640x400"     25.175 640  664  760  800   400  409  411  450
			 CLK   A   B     C    HS    D    E   F    VS

If you add 560 to A ,  and 624 to D  , you would get 1200x1024

Maybe add some to B and E , as long as C and F stay clear of  HS and VS.

then adjust the size to keep the display on screen (after adjustment
of the monitor) without  using up all available video ram (if you are limited there).

CLK HS and VS determine the  horizontal and vertical sync rates.
(and set a maximum on the number of pixels and lines ..)

Actually xvidtune can bump these settings up for you.


leon


> James Hunter Heinlen wrote:

>> On Thu, 06 Apr 2000 23:21:40 -0400, patrum (patrum@erols.com) suffered dangerous fits of clarity and wrote:
>>
>> > I have a SUN GDM-1955A fixed frequency monitor and can only get my
>> > xserver to work with 640 x 480 at 32bpp.  I don't know the actual
>> > refresh and scan rates of the monitor and am looking for some help.
>>
>> Sun sold at least 6 different models of the GDM-1955a.  They were all
>> 1152 x 864 composite sync monitors with hsync of 61.8 kHz and vsync of
>> 66 Hz.  They were 19" monitors with 4 BNC connectors (but you knew
>> that), and the primary difference between them was the tube model.
>> Sony made all of the tubes (and changed the tube model when the spirit
>> moved them).  More info at:
>>
>> http://www.monitorworld.com/monitors_home.html
>>
>> Getting fixed frequency monitors to work can be a chore (3 down, 2 more
>> to go), especially if you do not have a video card that was designed to
>> work with fixed frequency monitors.  Here are some faqs about this:
>>
>> http://www.devo.com/video/
>> http://cvs.anu.edu.au/monitorconversion/
>>
>> Good luck!!
>>
>> --
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>> dracus                                    __  __     ____  ___       ___ ____
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