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Radeon 7550 video cloning on IBook G3 14" [Was: Re: Radeon 9600 dual head and XF86Config on PB G4 15"]



On Tue, Aug 03, 2004 at 02:16:30PM -0400, Scott Henson wrote:
> > I just tried to get an external monitor running on my Alu Powerbook
> > 15" (kernel version 2.6.7) with an ATI Radeon 9600 graphics card.
> > Therefore I added in the XF86Config-4 file extra Device, Screen and
> > Monitor sections and the xinerama option to the ServerLayout section.
> > The screen of my Powerbook gets initialized properly. But on the
> > second screen I just get the PROM init on a white background. Does
> > anyone know a solution?

Hi, I'm trying to use the video output on an iBook G3 2.2 14" equipped
with an ATI Radeon Mobility M7 LW [Radeon Mobility 7500] using a 2.6.7
Linux kernel and X.org's X11R6.7.0 x server. I'd like the external
monitor to clone the iBook's one.


> The best way to get this to work is to shutdown your powerbook and
> completely hookup the monitor.  Then press the power button and
> immediately close the lid.  Then you should see the monitor come up
> with what you would normally see on the panel.  At this time open up
> the lid and use your power book as normal, your external monitor
> should continue to work.

Unfortunately if I follow these steps, the external monitor works
almost properly but the iBook's one doesn't at all. When I open up
the lid I get images that have nothing to do with the output I get
on the external monitor.

If I run dmesg give these conditions I get these lines among the 
others:

radeonfb: Invalid ROM signature 0 should be 0xaa55
radeonfb: Retreived PLL infos from Open Firmware
radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=180.00 Mhz, \
	System=180.00 MHz
radeonfb: Monitor 1 type CRT found
radeonfb: EDID probed
radeonfb: Monitor 2 type CRT found
radeonfb: EDID probed
radeonfb: Power Management enabled for Mobility chipsets
radeonfb: ATI Radeon LW  DDR SGRAM 32 MB


If I just plug the external video cable but I don't close the lid
the iBook's monitor works, apart from not setting the resoulution
properly under X, and the external monitor doesn't work at all.

If I run dmesg give these conditions I get these lines among the 
others:

radeonfb: Invalid ROM signature 0 should be 0xaa55
radeonfb: Retreived PLL infos from Open Firmware
radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=180.00 Mhz, \
	System=180.00 MHz
radeonfb: Monitor 1 type LCD found
radeonfb: EDID probed
radeonfb: Monitor 2 type CRT found
radeonfb: EDID probed
radeonfb: Power Management enabled for Mobility chipset


> As for this working as it does on other laptops and being able to just
> plug the monitor and it work, there needs to be some driver work or
> something about an open firmware emulator and there is no timetable
> for when that will be available(if ever?).

I've been lurking the ML for a while and some time ago I read in another
message that someone managed to make the cloning to work. Unfortunately
I'm not able to find that message anymore. =( Furthermore I'm not a
Debian user thus I'm not able to use Debian binary packages.

I know this ML is intended for Debian users but I wasn't able to find a
community like this anywhere else and this is the only place where I was
able to find useful informations about running GNU/Linux on an iBook when
I needed an helping hand.

Any hint or pointer will be appreciated.


Thanks in advance.


Best regards.
-- 
Value your freedom, or you will lose it, teaches history. 
``Don't bother us with politics,'' respond those who don't 
want to learn.

 -- Richard M. Stallman
    http://www.gnu.org/philosophy/linux-gnu-freedom.html

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