Re: patch to get latest XFree 4.0 snapshot (xf3918) to workonppcwithr128

[Michel Danzer <mdaenzer@yahoo.com>]

--- Michael Schmitz <schmitz@opal.biophys.uni-duesseldorf.de> wrote:

> > > I'll get back to poking around in there as soon as I can figure out how
> > > to see the kernel messages (i.e. how to switch back to the text console
> > > fast enough, or never let the X server switch to VT 7 in the first
> > > place).
> >
> > A remote machine might be handy...
>
> That's what I'm using already. But the kernel messages that otherwise
> appear on the text screen won't get redirected to a remote machine.
> Nothing ever ends up in the syslog, anyway. I guess the klogd/syslogd
> combo is too slow in this case.

Can't you use kgdb?


> > BTW I've just discovered that the fbdev driver sets the weight explicitly
> > to {0,0,0}... now I'm (really ;) confused.
>
> So was I.

Wonder what the intention and effect(s) are. Alan?


> > > I guess it all boils down to PCI messups.
> >
> > How do you come to this conclusion? Why should it influence ioctls?
>
> Because these ioctls will, ultimately, write to the card again? If the X
> server actually messes with the PCI bridges, the card might no longer be
> mapped?

Can the X server mess with atyfb's mappings?


> I admit that I understand next to nothing about PCI, or how the X server
> uses PCI. Makes it a bit harder to spot the flaky code :-)

Same goes for me :-/


> Anyway, the X server appears to complete screen init OK but I never
> actually get to see the cross hatch pattern.

Not very astonishing without the FBIOPUTSCREEN ioctl, is it?

What _do_ you see if anything?


Michel

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