Re: original iMac problems

[Michael <macallan%NetBSD.org@localhost>]

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Hello,

On Jul 6, 2012, at 1:14 AM, John D. Baker wrote:

> > What happens if you start X and exit immediately? Does that result in
> > a readable console with machfb? I bet it's something fairly trivial
> > which would be easy to fix if I could just reproduce it.
>
> From cold start, dropping into userconf to disable atabus, logging
> in blind and typing 'startx'.
>
> There's a flash of white at the right edge of the top 1/16 of the  
> screen.
> The screen goes completely black for a few seconds, then displays an
> in-sync pattern of hash like art-deco fabric--very purple.  There's a
> black band across the screen about 1/8 the way down about 3/8 screen
> height.  There's a rectangle of grey hash almost 1/4 screen high and
> 1/2 screen wide located 1/8 screen from the left.

So X doesn't get things right either? It should at the very least get  
its hash pattern all over the screen, in the right colours, and you  
have enough video memory to do 1024x768 in 24bit. Now we're officially  
entering twilight zone territory.
The reason why I asked this is this - I suspect we're not initializing  
enough of the drawing engine, and on other hardware this is no problem  
because the firmware did it for us. I wanted to see if X initializes  
it so machfb can work right after X exits.
Seriously, I've been using machfb ffor ages on various Sun and Apple  
branded cards and onboard video chips and I've never seen anything  
like this.

> The X cursor never appears.  The keyboard is unresponsive at this
> point.  I can log in via ssh and terminate X (had to use -9), but
> nothing further can be done from the console.

Any chance to mail me the Xorg.0.log?

I guess next time I see a Rev. A or B iMac at the flea market I need  
to get it. I even have a video memory module sitting around.

have fun
Michael

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