Try reseting the PMU (Hold command + option + P + R + power on)
Try this with the battery out and the mains in (apparently this does something slightly different)
That fixed the same problem on my PDQ.



On 11 Aug 2004, at 23:50, Andrew Rodger wrote:

We have a G3 WallStreet PowerBook which is largely desk bound but a
very useful computer none the less.  It runs OSX Jaguar and has been
doing good service for the last six months or so.  However, it does not
have a huge heap of RAM or disc space and its sound card is dead, so it
is not over taxed but does simple word processing and checks the odd
small spreadsheet.

The other day it went into screen saver mode or rather it appeared the
back light went off and could not be restored.  However, if I restart,
it loads up with screen up and running but at the end of the login it
goes dark again.  A dab on the brightness button and I get it back
again.  However, the next sleep cycle comes round and it goes dark
again.  Sometimes I get it back and sometimes I have to restart to get
it back.  i wonder if anyone has come across this before.

Interestingly and simultaneously I have found that I cannot start up in
command line mode.  It used to be that if you restarted holding down
<command + S> you could do this but no more.  So I cannot run the fsck
-y routine which so often seemed to resolve problems with Jaguar.  i
have repaired permissions but this does not help.

Any ideas? It would seem at first glance to be a screen failure on the
way but i think there is something about the behaviour which suggests a
system based problem. I had thought about upgrading it to Panther but
as yet I have no evidence of this hardware supporting the latest OS,
though there are plenty of people out there using Jaguar on Wallstreets
I believe.

Drew


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