Re: machfb still broken for first gen iMacs

[John Klos <john%ziaspace.com@localhost>]

> > The first two are for reference and show a genfb kernel. This is a first 
> > generation iMac with a VGA connection to a regular monitor.
>
> What about the built-in monitor?

There is none. This iMac doesn't support more than one monitor. The 
motherboard was saved from a junked iMac.

> Does the iMac lock up here or does it continue booting with an unreadable 
> console?

It seems to continue because I see small groups of pixels change for the 
next minute or so, but I wasn't able to access it via the network. For a 
little while other small screen changes happened when I hit keys, but a 
reboot command didn't (reboot).

> Since this seems to be drawing engine related I'm afraid it's a lockup 
> though, and since you see the 'initial resolution...' line we made it past 
> engine initialization and mode setup.
> Please do this:
> - - comment out the mach64_clearscreen() call in mach64_attach() so output 
> doesn't get lost
> - - sprinkle printf()s to find out where exactly the messup happens, normal 
> console output should work right up to wsdisplay_cnattach()
> - - set options_MACHFB_DEBUG in your kernel config for extra loudness
> This should give us an idea where the messup happens. As I said before, I 
> have a beige G3 with onboard Rage II and a Sun PGX ( which is another Rage II 
> on a PCI card ) - both work fine.
> Finally, you could try to if (0) the ri->ri_ops.putchar = ... line in 
> mach64_init_screen() so we fall back to software character drawing. If that 
> helps at least I know where to look.

I'll try those when I'm on that machine again. Thanks!

John