Subject: Re: ibook G3,black screen
To: Masafumi Hotta <ma-500@rj8.so-net.ne.jp>
From: Michael Lorenz <macallan@netbsd.org>
List: port-macppc
Date: 07/23/2007 00:11:04
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Hello,

On Jul 22, 2007, at 21:06, Masafumi Hotta wrote:

> Hello,
>>
>> Specify a video mode that actually matches your display - like this:
>>
>> Section "screen"
>> 	Identifier "Screen0"
>> 	Device     "Card0"
>> 	Monitor    "Monitor0"
>> 	DefaultDepth	24
>> 	SubSection "Display"
>> 		Modes "800x600"
>> 		Viewport   0 0
>> 		Depth     24
>> 	EndSubSection
>> EndSection
>>
>> According to the log the r128 driver couldn't identify your display 
>> and
>> tried to run in 1600x1200 which isn't going to work on an 800x600
>> panel.
>>
> I tryed this configuration, and I get black screen again.
> I think I should try "vga" driver or something.

That won't work at all, I don't think it's even built on macppc. If all 
else fails try the wsfb driver.
Something else - your iBook has a VGA output, does it? Maybe the r128 
driver uses that one by default.

> (WW) R128(0): Video BIOS not detected in PCI space!
> (WW) R128(0): Attempting to read Video BIOS from legacy ISA space!
> (WW) R128(0): Video BIOS not found!
> (WW) R128(0): Can't determine panel dimensions, and none specified. 
> 			      Disabling programming of FP registers.

But this looks like a hint.
Try to put this into your Device section:
         Option     "PanelWidth" "800"
         Option     "PanelHeight" "600"

have fun
Michael
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