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From: pejacoby@mmm.serc.3m.com (Paul E. Jacoby)
Newsgroups: comp.sys.mac.hardware
Subject: Re: SE/30 screen flickers/no it doesn't/yes it does/...
Message-ID: <1991Jun10.194731.5008@mmm.serc.3m.com>
Date: 10 Jun 91 19:47:31 GMT
Article-I.D.: mmm.1991Jun10.194731.5008
References: <12163@skye.cs.ed.ac.uk> <1991Jun8.223327.25416@spool.cs.wisc.edu>
Reply-To: pejacoby@mmm.serc.3m.com (Paul E. Jacoby)
Organization: 3M - St. Paul, MN  55144-1000 US
Lines: 44

In article <1991Jun8.223327.25416@spool.cs.wisc.edu> elliott@veronica.cs.wisc.edu (James Elliott) writes:
>In <12163@skye.cs.ed.ac.uk> nick@cs.ed.ac.uk (Nick Rothwell) writes:
>
>>Any other SE/30 owners had the following problem? A sporadic flickering/jumping
>>of the screen: the top and bottom few pixel rows of the screen suddenly
>>stretch, and the stretched regions drift inward toward the centre and then
>>out again.
>
>Yes, actually, I've begun to get concerned about this problem myslf.
>Strangely enough, after the monitor has been on for about half an hour
>the problem stops. I don't know whether it's the fault of my external

Oh, this is weird, too weird.  I am just now starting to have some
problems with MY SE/30 video setup!  It can't be the Ides of March;
after all, it's June... :-)

  I have an SE/30 with a RasterOps 264/30 24-bit video card.  I just
  recently swapped my internal 40 meg Sony drive out for a Quantum PRO
  105 megger.  Now, on occassion, when starting the machine up, it goes
  into a try-to-boot/reboot/try-to-boot cycle.  When this happens, the
  RasterOps logo comes up on my external monitor, accompanied by a lot
  of BLUE NOISE--horizontal blue bars at random locations all over the
  screen.  If I let the machine sit, it will do the reboot-thing for
  quite a while.  Each time, the RasterOps card repaints the whole logo,
  and the blue bars are there.

  Eventually, I get tired of it and hit the Programmers switch.  Sad Mac! Code
  000F 0013 or something similar.  Hitting the Reset switch makes the
  machine boot properly!  After getting a good boot from the reset
  switch, all is well, and life is happy.

  Note that often I will boot just fine the first time; no delays, no
  reboot, no blue bars on the monitor.  Any ideas?

  SE/30, System 7.0, RasterOps 264/30 (rom v1.3), Quantum PRO 105 (can't
  recall the ROM on it; I think "A.5"?), external Conner 105, Seiko
  CM1445C monitor.


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