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000192_owner-amiga@sun…s.berkeley.edu_Thu Aug 4 19:42:27 1994.msg
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From: jshardlo@london.micrognosis.com (John Shardlow)
Subject: Missing Columns episode 12768 - possible solution ?
To: amiga@sun-lamp.cs.berkeley.edu
X-Mailer: ELM [version 2.4 PL23]
Content-Type: text
Content-Length: 2242
Sender: owner-amiga@sun-lamp.cs.berkeley.edu
Folks,
Here is a possible clue as to why I have every fourth column missing
on my console in NetBSD:
comp.unix.amiga :
>From miclon!uknet!EU.net!sunic!news.uni-c.dk!iesd.auc.dk!news Thu Aug 4 17:35:31 1994
Article: 7474 of comp.unix.amiga
Path: miclon!uknet!EU.net!sunic!news.uni-c.dk!iesd.auc.dk!news
From: jdso93@kom.auc.dk (jes degn soerensen)
Newsgroups: comp.unix.amiga
Subject: Re: Linux 0.9 pl 1
Date: 4 Aug 1994 10:39:04 GMT
Organization: Aalborg University - Dep. of Communication Technology
Lines: 36
Distribution: world
Message-ID: <31qgg8$a3j@news.iesd.auc.dk>
References: <31lpd6$8mq@redwood.cs.scarolina.edu>
Reply-To: jdso93@kom.auc.dk
NNTP-Posting-Host: aleko.kom.auc.dk
In article 8mq@redwood.cs.scarolina.edu, uytterho@math.scarolina.edu (Geert Uytterhoeven) writes:
>jshardlo@london.micrognosis.com (John Shardlow) writes:
>> The reason I tried Linux was that I had an annoying problem
>> with NetBSD which affected the console. Basically every fourth
>> column of characters was missing. I thought that this must be
>> a bug in the console code but none of the other NetBSD'ers
>> seemed to suffer from it.
>>
>> To cut a long story short, Linux also suffers from the exact same
>> problem on my A3000.
>>
>> Two questions:
>>
>> 1) Is it possible to make Linux run the console on the serial
>> port ? (I have a VT 220 on the serial port)
>
>There still is no serial driver, I think.
>
>> 2) Has any Linux user seen this problem and know of a cure for it ?
>
>Which video mode are you using? Try some other mode.
>
>While I was implementing the new AGA modes, I got about the same problem (it
>had something to do with Chip memory alignment) and I tuned everything 'till
>it worked fine on my A4000.
Sounds the like the 'problem' with the AGA chipset, when running burstmode on the
bitplanes. Then the bitplanes has to be double longword alligned.
Jes
---
Jes Sorensen: jdso93@kom.auc.dk | If programming was ment to be fun,
jes@leech.adsp.sub.org | why did they come up with Intel?
This CHIP mem allignment sounds like it could be the problem.
Any one else using burst-mode RAM ?
How can I force allignment ?
Please help !! I FEEL LIKE I MIGHT BE CLOSE TO SOLVING IT !!!!
:)
John