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- Path: fc.hp.com!tomk
- From: tomk@fc.hp.com (Tom Kennedy)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: CV64 problems
- Date: 9 Feb 1996 19:24:02 GMT
- Organization: Hewlett-Packard Fort Collins Site
- Message-ID: <4fg70i$akj@fcnews.fc.hp.com>
- References: <3111F76E.1E65@brunel.ac.uk> <4eu8gn$oag@newsstand.cit.cornell.edu> <3114A0E3.6408@brunel.ac.uk> <4f8smq$s47@thunder.mgl.ca> <4fe5q1$l9u@fcnews.fc.hp.com> <311B2740.1E11@brunel.ac.uk>
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- Philip Chung (ee95pyc@brunel.ac.uk) wrote:
- : Tom Kennedy wrote:
-
- : > While we're on the subject of CV64 problems... does anyone else have that
- : > terrible ghosting when using a 1950 with a CV64? If this is normal,
- : > then this is one shitty graphics card I just bought. I'm going to try
- : > hooking it up to a 20" monitor soon... it better be better or Phase 5
- : > will be hearing from me!
-
- : This ghosting - it isn't the slightly darker vertical band on the left edge
- : of the screen is it? Otherwise, the CV64 is crystal sharp on my 15" Smile
- : monitor.
-
- Here's an easy way to reproduce the problem I see: go into a paint
- program that works with graphics cards (there was one included with
- the Aminet 7 CD, or you could use a mac paint program with
- shapeshifter). Now draw a black box on the screen. Inside the black
- box, draw a blue box (R:0 G:0 B:255). You'll see the first column of
- blue is brighter then the rest (any time my CV64 goes from a dark
- color to any bright color it overshoots the bright color for ~1
- pixel. However, light to dark is not a problem).
-
- Please try this and let me know what happens. It *could* just be the
- fault of the 1950... then again, it could be the CV64's DAC (appears
- to be under damped -- someone else said S3 chipsets are often over
- damped, so maybe S3 chipset are just real inconsistent...) Hmm... I
- guess if the problem is an under dampt signal I could hack a circuit
- together to correct it... (maybe I should just feel lucky it's not
- over damped :)
-
- Tom Kennedy
-
-