Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!cernvax!chx400!hslrswi!aut!nbladt
From: nbladt@aut.UUCP (Norbert Bladt)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: Trident Drivers for GIF programs
Message-ID: <810@aut.UUCP>
Date: 28 Sep 90 12:21:26 GMT
References: <4684@monu1.cc.monash.oz> <4709@monu1.cc.monash.oz> <9757@ubc-cs.UUCP>
Organization: Ascom Autelca AG, CH-3073 Guemligen Switzerland
Lines: 35

jalbert@cs.ubc.ca (Francois Jalbert) writes:

>Richard mentioned in his last message that CSHOW82 and VPIC29 supported the
>TVGA. Well, I tried both in 640*400*256 on my TVGA (8800CS chip) and they don't
>seem to work. The screen fills with the picture, but it is strangely mixed.
I have the same chipset and CSHOW81B works well for me.
I don't think that such an error was introduced with the latest version of
cshow.

> It's
>like if you had 9 small images all intermixed over the screen. I tried the
>Trident generic driver and the 8900 driver with no difference. My screen can
>take 640*400*16 and 640*480*16 and since it's analog, I figured it should take
>640*400*256. The salesman did tell me so. So any hints as to what might be
>wrong? Are there a zillion Trident chips? I'm just curious. Thanks. Franky
I would guess that the monitor is WRONG, i.e. not a multisync one ? (Never
trust a salesman, read the technical data and the manual first, to check
what COULD be the truth !)
We have a Philips monitor (3CM9809) here and it wouldn't display other
resolutions than the standard VGA one's. Not even 640x480x256 or
360x400x256 and so on. There are some horizontal lines flashing on
the screen, that's it.

Buy a real monitor - I have a 14 inch multisync monitor (noname) connected
to the TVGA board (8800 chips) and it works well.

A question comes to mind: Is it possible to damage a monitor by using, say,
1024x768 resolution while the monitor just can handle up to 640x480 ?

Norbert Bladt.
-- 
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