Michael wrote:
>>I have an old iBook (clamshell) that has an "ATI 3D Rage Mobility  
>>graphics controller" with "ATI Mach64 adapter" according to  
>>XFree86.0.log, which matches what is reported by Open Firmware.
>>
>>On NetBSD 3.0.1, XFree86 did not work but died immediately. Xmacppc  did 
>>work (though 8 bit colors did not look great). I postponed  looking for 
>>the error that made XFree86 die to 4.0.
>>
>>On 4.0, both Xmacppc and XFree86 start, but both give totally  distorted 
>>graphics (in different ways). I played a lot with  XF86Config, but I 
>>cannot fix XFree86. (XF86Config seems to have no  influence on Xmacppc.)
>
>Yikes, I bet it's a Rage LT - neither machfb nor XFree86's atimisc  driver 
>can handle it properly and I don't have the hardware so I  can't really 
>look into it.
>What you can do is to use XFree86 with the wsfb driver, it is  
>unaccelerated and limited to whatever video mode OpenFirmware sets up  but 
>at least it should give a usable X.
>
>>What the display exactly looks like with XFree86 depends on the  color 
>>depth. I describe it for 16 bit:
>>
>>The top quarter (full width) shows something that looks like xterms  on 
>>the left, but with some "bars". Typing something into one of  them, I only 
>>get a few dots. If that were fonts, they would be way  to small. On the 
>>right, I see the clock, which basically looks  correct, maybe too small, 
>>too. The mouse cursor looks ok.
>
>Looks like X and the hardware disagree about colour depth. Try 8 bit,  X 
>may fail to tell the DAC about pixel format change for some reason.
>
>>(--) PCI:*(0:16:0) ATI Technologies Inc Rage Mobility L AGP 2x rev  100, 
>>Mem @ 0x91000000/24, 0x90000000/12, I/O @ 0x0400/8, BIOS @  0x90020000/17
>
>Hmm, not an LT after all, so it's probably the whole L series :/

I have an L series in my iBook, and it works fine with atimisc.  Mine
says:

(--) PCI:*(0:16:0) ATI Technologies Inc Rage Mobility L AGP 2x rev 100, Mem 
@ 0x91000000/24, 0x
90000000/12, I/O @ 0x0400/8, BIOS @ 0x90020000/17

(In other words, it looks like it's the same model.  Anyway, I just
posted the XF86Config file I'm using to the list [again], so it may
work.)

Dave