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- Path: newshost.defcen.GOV.AU!news
- From: stewart@defcen.gov.au (Stewart Skelt)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Picasso and graphic garbage
- Date: 2 Mar 1996 01:58:08 GMT
- Organization: Defence Central - Canberra, Australia.
- Message-ID: <1354.6632T1237T2718@defcen.gov.au>
- References: <4gsnvu$s23@nyheter.chalmers.se>
- NNTP-Posting-Host: sieglinde.defcen.gov.au
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP)
-
-
- On 27-Feb-96 02:43:42 Jonas Ekstr|m wrote:
-
- >I recently installed a Picasso II, 2 MB in my A2000. All the colors
- >and the resolution are nice but there is one major problem I haven't
- >manage to solve - graphic garbage.
-
- >When I start a program sometimes parts of the active display, usually
- >the Workbench, is destroyed by random colors. This garbage always
- >appear in horizontal bands and can be removed with a redraw of the
- >destroyed area.
-
- <snip>
-
- >Has anyone else experienced this problem? Any theories from you out
- >there are very welcome. Solutions even more.
-
- Yes! I had what sounds like EXACTLY the same problem and I spent months trying
- to track it down. Like you I have an A2000 with a GVP Combo 030/22. Eventually
- I got a Guru-ROM. This in itself did not solve the problem but the version of
- GVPSCSICTRL which comes with the Guru-ROM includes an option to turn off SCSI
- DMA. I put GVPSCSICTRL NODMA in s:user-startup, and the problem was gone. The
- SCSI access is subjectively a little bit slower but not too bad. And the clean
- graphics are a great improvement.
-
- I suggest you try it - let me know if it works for you.
-
- --
- o-----------------------------o
- o| Stewart Skelt |o
- ----=====O (stewart@defcen.gov.au) O=====----
- o| Queanbeyan, NSW, Australia |o
- o-----------------------------o
- --
-
-