Re: [foxboro] D-style Sun box loses video

If your box is pretty old, it may be time for a new NVRAM. This thing
keeps a number of critical parameters including your video settings. If
all of a sudden things are going stupid (like video going crazy or not
keeping clock time), it may be that the battery on the NVRAM is getting
exhausted. These batteries are only good for 5 or 6 years (but may last
much longer on boxes powered 24/7). You can't change the battery because
it's buried in the chip. You need a new chip if you do replace it. You
can get the chips for about $20-40.=20


* K

-----Original Message-----
From: duc.do@xxxxxxxxxxxxxx [mailto:duc.do@xxxxxxxxxxxxxx]=20
Sent: Wednesday, February 22, 2006 9:55 AM
To: foxboro@xxxxxxxxxxxxx
Subject: [foxboro] D-style Sun box loses video

Hi list,

Another day, another problem.

I have an AW51D (Sun Ultra 5) with dual-head video. Recently it lost the
video out from the primary video port, but in a peculiar way.

I can see all the POST messages (on white background) fine until the
Foxboro I/A signal kicks in (when the screen normally turns to the light
blue background), then I get nothing but a dark screen. The box would
continue to boot up fully and I can see the video signal on the
secondary display.

I pull the hard drive and put it into another Ultra 5 box, but the same
symptom persists, so I ruled out hardware problems and started to look
at corrupted graphic drivers or something along that line.

Searching the foxboro archive (from another problem of mine three years
ago, http://www.freelists.org/archives/foxboro/03-2003/msg00042.html)
led to inspecting the graphic driver in /dev/fb0, but that didn't shed
much light (it's there, and looks similar to that on an operational
box).

Searching Google for graphic problems with the Ultra 5 really didn't
help much as this problem rears its head when the display is switched to
the Foxboro graphic signal.

(Yes, I've tried 'boot -r'.)

Anybody experiences this same problem? Anybody knows how to fix it?
Thanks for any information.

Duc

--=3D20
Duc M. Do
DCS Group, Carrollton Plant
Dow Corning Corp.
Carrollton, KY, US
=20
=20
_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
=20
foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         =
mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Djoin
to unsubscribe:      =
mailto:foxboro-request@xxxxxxxxxxxxx?subject=3Dleave
=20

 
 
_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
 
foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe:      mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave

Other related posts: