From: jem@sunSITE.unc.edu (Jonathan Magid) Subject: Re: Any dual monitor support yet? Date: Fri, 12 Feb 1993 20:42:36 GMT
In article <1993Feb11.204549.1939@infograph.com> darin@infograph.com (Darin Wayrynen) writes:
>In article <1993Jan31.095631.3291@cheshire.oxy.edu> rafetmad@cheshire.oxy.edu (David Giller) writes:
>>BTW: even so, this will have drawbacks. When you stick a Herc card in
>>with a VGA card, the VGA card's speed cuts in HALF. This has
>>something to do with the way video cards use the bus (I'm not clear on
>>this). This happens if you have an 8-bit herc card and a 16-bit VGA
>>card. The VGA effectively turns into an 8-bit card.
>
>It may be true that a 16 bit VGA card effectively turns into an 8-bit
>card when used in combination with a Herc card, the nice thing is that
>the user will not visually notice a 50% slow down. The possible
>throughput is cut in half, but rarely is the full throughput used as
>it is. The cpu when outputing to a graphics screen needs to do many
>calcualtions between each screen operation. This effectively makes
>the slowdown less visible to the user...
Arrgh. I was going to buy some Hercules equipment to use as a second
display, along with my local bus ET4000, when XFree 1.2 comes out.
I don't however like this idea of cutting my video display speed in half...
(This was the entire reason I bought local bus!) Does anyone know if
this effect will show up with lb?
jem.
-- Jonathan Magid jem@sunSITE.unc.edu sunSITE Administrator Virtual pizza Delivery (tm)::faxed in 30 cycles or less or you get it ========================================FREE!!!=======================