[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Dual head on G4 Powerbook 400MHz

David Stanaway <david@stanaway.net> wrote:


>> There was a patch for the 2.4 kernel, but it doesn't work on 2.6. On
>> 2.4, you could also replace the prom_init.c file with the one from
>> 2.4.20 and that would allow you to use m3mirror to enable the crt
>> output.
> I have had a look at the differences, and the only things I can see are
> some POWER4 additions, and improving the process for opening the
> displays in check_display.

The POWER4 parts are just noise in our case; what broke the mirroring
is the changes made to check_display, where each available display is
opened. (as said in private mail already)

> Would a hack workaround be to change the sorting of display nodes so
> that the CRT is opened first?

I don't think so, but I'm no expert.

> I haven't looked through the aty128fb driver yet, but what is involved
> in fixing up dualhead there?

There's no support at all currently, only a gross hack to set up a
basic mirroring between the 2 heads. BenH told me that looking at the
XFree86 radeon driver might help to get something done on the M3.


 Julien BLACHE - Debian & GNU/Linux Developer - <jblache@debian.org> 
 Public key available on <http://www.jblache.org> - KeyID: F5D6 5169 
 GPG Fingerprint : 935A 79F1 C8B3 3521 FD62 7CC7 CD61 4FD7 F5D6 5169 

Reply to: