Re: radeonfb vs. Mac Mini

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Tue, Sep 05, 2017 at 23:04:21 -0400, Michael wrote:

> On Wed, 6 Sep 2017 04:31:13 +0300
> Valery Ushakov <uwe%stderr.spb.ru@localhost> wrote:
> 
> > On Thu, Aug 31, 2017 at 14:10:47 -0400, Michael wrote:
> > 
> > > I committed a few changes to radeonfb lately which make it work
> > > properly on my Mini, with both DVI and VGA output.
> > > My Mini is the 'silent upgrade' model, PowerMac10,2 as per Open
> > > Firmware. The DVI port is wired slightly different on first
> > > generation Minis ( PowerMac10,1 ), I *think* I set it up correctly
> > > but I have no way to test this.  
> > 
> > I have tested it on the early mini with DVI and, unfortunately, it
> > doesn't seem to work.  The screen is black.
> > 
> > radeonfb0 at pci0 dev 16 function 0found EDID property...
> > : ATI Technologies Radeon 9200 5962 (rev. 0x01)
> > radeonfb0: Video BIOS not present
> > radeonfb0: No video BIOS, using default clocks
> > radeonfb0: refclk = 27.000 MHz, refdiv = 12 minpll = 125000, maxpll =
> > 400000 radeonfb0: 64 MB aperture at 0x98000000, 64 KB registers at
> > 0x90000000 radeonfb0: display 0: initial virtual resolution 1920x1200
> > at 8 bpp radeonfb0: using 32 MB per display
> > radeonfb0: port 0: physical 1920x1200 60Hz
> > radeonfb0: port 1: physical 1920x1200 60Hz
> > wsdisplay0 at radeonfb0 kbdmux 1: console (fb, vt100 emulation)
> 
> Looks ok so far...
> 
> > display-type            4c434400 ........ ........ ........   LCD.
> 
> ... ok, so it's a DVI monitor. Any way you could test with a VGA
> adaptor?

Right, that's with DVI.  I've just tested current GENERIC with VGA +
the original adapter and it works (but VGA always worked, iirc, didn't
it?).


> Also, does X work (with an updated radeon driver)?  Doesn't matter
> if it's on top of genfb or radeonfb, it should Just Work without any
> config file hackery.  I tried to replicate their Mini workarounds in
> radeonfb, I'd like to know if the original works before looking into
> my copy.

This mini currently runs -7 for some tests and I'm a bit reluctant to
upgrade it.  Any way I can test new X without complete upgrade?  If
xsrc on 7 is not that diverged, a patch will do (you gonna pull it up
anyway :).


> > PS: Please, can this "found EDID property" in copy_disp_props() be
> > fixed?
> 
> Will do, that should be Very Verbose Debug Output(tm)...

Thanks!


-uwe