SMU-base PowerMac and server_mode

Romain Goyet r.goyet at
Tue Oct 6 22:44:08 EST 2009

Hi Michel :-)
Acutally I didn't figure it out by myself :

However, here's my 2 cents about it :
1/ The fix (removing "screen" line in ofboot.b on yaboot partition) doesn't
work with all versions of the yaboot binary. Works with the one from Debian.
Doesn't with yaboot-static on GentooPPC64. But you still can fetch the right
binary from the .deb archive
2/ Another possible solution can be to hook up a DVI-> VGA adapter, and plug
in a resistor between the right pins (don't remember which) so that yaboot
thinks a display is plugged in

Hope that helps !!

 - Romain

2009/10/6 Michel Dänzer <michel at>

> On Tue, 2009-10-06 at 11:16 +0200, Romain Goyet wrote:
> >
> >   I have this Quad G5 here, running GentooPPC64. Runs fine. Had a hard
> > time getting it to boot without a screen attached, but I eventually
> > managed to (yaboot was the culprit).
> Out of curiosity, how did you solve this? I still have an unused monitor
> connected to mine...
> --
> Earthling Michel Dänzer           |      
> Libre software enthusiast         |          Debian, X and DRI developer
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