Re: Wallstreet

[Ben Dyer]

My understanding is that the problem is in the PMU settings, not the 
PRAM. Steps 2 and 3 may well be unnecessary on some models, but are 
required on mine. As for pressing the brightness button, I find that it 
will only fix the problem if the backlight is off after startup; when 
the backlight fails to turn on after waking from sleep, the brightness 
controls do nothing.

On 25 Dec 2004, at 13:13, Mikael Bystr�m wrote:
Ben Dyer said:
This is a known issue with the Wallstreet under Jaguar. To fix this
problem:
* Restart into MacOS 9
* Put the Wallstreet to sleep
* Wake it up again
* Restart into Jaguar
As I have stated earlier on-list, I have a differing experience in that
step 2 and 3 above was unnecessary. However, to be able  to boot into 
OS
X, when in OS 9, you have to choose OS X as the startup disk with the
associated control panel. During the first boot, when you do this, the
machine may (or may not) freeze. On the second boot, this will not
happen. Something to do with garbled NVRAM or PRAM Settings I have
speculated. I never investigated, but if anyone want to check this, 
they
could run the command:
sudo nvram -p
<password>
in the terminal and compare the individual settings when the machine
doesn't have this display problem, with when the machine do have the
problem. In order to do the latter one could direct a strong light 
source
to the display in order to see. This worked for me., for doing restarts
into OS 9. I do think if possible it's ok to press the backlight 
buttons
a few times to kick in the backlights if this is possible, as, for me 
at
least, the problem came back at next restart, indicating the settings
were the same even if you pressed those buttons. Most often for me, I
couldn't get back the backlight, if I didn't press those buttons
somewhere around midway thru the boot process, before Aqua. After that
did not work. There may be other variations of course.
Interesting. I think your interpretation is probably right; my PRAM 
battery was *completely* dead. Power failure during sleep does put more 
strain on the PRAM battery, as the Wallstreet uses the battery to back 
up the contents of main memory for 15-30 seconds (to enable battery 
changeover during sleep).

Every time the power is interrupted (i.e. you take the power cord out,
while no working battery is present), you will have to repeat the
procedure--even if the Wallstreet was turned off at the time you
removed the power cord.
For me this problem *only* appeared if the wallstreet was in sleep or
running when the power was cutoff. It's possible the difference is
because my backup battery had a small load and yours didn't have one at
all, but I'm not sure. My experience is somewhat different, however, 
and
I thought it worth mentioning.
Cheers,
Ben
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