Console drivers

Hi,

On 11/11/06, Michael Lorenz <macallannetbsd.org> wrote:
> On Nov 10, 2006, at 17:03, Marco Trillo wrote:
> > On 11/10/06, Marco Trillo <marcotrillogmail.com> wrote:
> >> then the screen went black and the eMac froze 
(I suppose, since the
> >
> > Well, after doing more tests, actually it did not
froze (just the
> > screen went black), but I did not give it enough
time to initialize
> > the keyboard 
> >
> >> after the boot command (in case it has any
relation with this, this
> >> time the boot  command was not the first
command entered on the OF
> >> prompt).
> >
> > Hmm... it has relation: when I type the "boot
cd:,ofwboot.xcf" command
> > as the first command in the OF session, the
framebuffer inits with
> > green-on-white letters but then it goes black. But
when I first type
> > other OF commands, the framebuffer does not start
and the screen goes
> > black just after typing the boot command.
>
> This is odd.
> The initial green-on-white stuff doesn't come from
radeonfb - it
> doesn't kick in until this:
> radeonfb0 at pci0 dev 16 function 0: ATI Technologies
Radeon 9200 5962
> Then it should switch to some halfway sane resolution
in 32bit colour
> and continue ( I didn't write this driver - it doesn't
work very well
> in 8bit and 32bit is fast enough so it runs in 32bit )
> Apparently whatever it picks isn't something your
display likes and I
> see no output regarding monitor identification via
DDC2.
> So, initial diagnosis - monitor going black when
radeonfb attaches is
> no freeze, just out of sync. If the eMac is anything
like the G3 iMacs
> then the monitor is picky about its horizontal
frequency - did you have
> to use HorizSync to something fixed or a very narrow
range in
> XF86Config?

Yes, it apparently requires a fixed "horizontal
sync" frequency of
72kHz and can't do anything out of that.

These are the possible combinations for the eMac:
640x480138Hz
800x600112Hz
1024x76889.0Hz
1152x86480.0Hz
1280x96072.0Hz

I will try with the "1024x768x89" mode.

Thanks!

BTW, I also tried this ISO on a PowerMac G4 'Sawtooth' with
ATI Rage
128 Pro and booted fine with the new 'ofb' driver with color
support:

ofb0 at pci0 dev 16 function 0: ATI Technologies Rage Fury
MAXX AGP 4x (TMDS)
ofb0: 1280 x 1024, 8bpp


-- 

     -Marco