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- Newsgroups: comp.sys.sun.hardware
- Path: sparky!uunet!tijc02!cgh018
- From: cgh018@tijc02.uucp (Calvin Hayden x2254)
- Subject: Re: Video Controller problem with a Sparc 1+
- Message-ID: <1993Jan21.173627.915@tijc02.uucp>
- Organization: Siemens Industrial Automation, Johnson City TN
- References: <1j7ankINNepl@tamsun.tamu.edu>
- Date: Thu, 21 Jan 93 17:36:27 GMT
- Lines: 49
-
- From article <1j7ankINNepl@tamsun.tamu.edu>, by henrik@stat.tamu.edu (Henrik Schmiediche):
- > In our department we have quite a few Sparc's (1, 1+, IPX, 10). One
- > of the Sparc 1+'s has develop a vidoe problem and I was wondering if
- > I could get some help on fixing the problem.
- Sounds familiar...
- >
- > Symptons:
- > The monitor will do OK when the cold 1+ is booted. After a few
- > minutes the screen image on the monitor will start jumping from left
- > right and over a minutes or so the jumping increase in speed
- > until the the image is flickering and completely distorted.
- Yep, sounds real familiar...
- >
- > Since we have several Sparc 1+'s in our department I tried swapping
- > monitors and found that these symptons persist with a new monitor -
- > furthermore the old monitor works when hooked up to another Sparc 1+.
- > So it seems to me the monitor is fine and that perhaps the problem
- > lies with the video controller. I have a lot of experience fixing IBM
- > PC's, but I have not yet opened up a Sparc. So before I do, a few
- > questions.
- >
- > 1) is the video controller replaceable (ie. is it on some kind
- > of card that can be swapped)?
- Yes. The sparc1 and 1+ (I haven't torn open an IPX or 10...yet) should
- have sbus video cards in them. The card is replaceable. We are on sun
- HW maintenance, and when this happened, I tried another card from another
- system and the symptoms went away. Called Sun and got another card.
- >
- > 2) can one buy replacement video controllers from another
- > source but Sun (hopefully cheaper then Sun)?
- Dont know?
- >
- > 3) does anyone recognized the above symptons and knows exactly
- > what it is?
- See above. My symptoms were as follows: on ocassion, a sparc 1 of mine would
- become "jittery" as described above. When it happened, the entire system
- would "hang", and only a cold boot would fix the problem. It would go away,
- but come back before long. If I remember correctly, the problem was also
- associated with occasional "watchdog reset" halts.
- >
-
- Hope it helps...
-
- Calvin
-
- --
- Calvin Hayden Uucp: uunet!tijc02!cgh018
- Siemens Industrial Automation Inet: cgh018%tijc02@uunet.uu.net
- -- My opinions and mine alone -- cgh018@tijc02.uucp
-