Radeon/PowerPC: No video output after update 6.12.1 -> 6.12.99; 6.12.192

[Albrecht Dreß]

Am 22.04.10 19:23 schrieb(en) Albrecht Dreß:
> Sorry for the long delay, but it took siome time to find a working vga monitor...
> 
> Am 14.04.10 20:52 schrieb(en) Albrecht Dreß:
>> Am 13.04.10 23:01 schrieb(en) Alex Deucher:
>>> Do either of these options help?
>>> Option "ConnectorTable" "100,2,1,2,96,1,0,1"
>>> Option "ConnectorTable" "100,2,2,2,96,1,0,1"
>> 
>> They don't make any difference, same effects as before  - greenish shades, vertical blue line.  Switching to the text console works (as I can type "reboot", so the kb input goes the right way), but the display just flickers shortly, and then the shade/line does appear there, too.
>> 
>> I also tried some other options (like 'Option "BusType" "PCI"' and 'DefaultDepth 8'), but they also don't make any difference - same effects, again.
>> 
>>> Do you have a VGA monitor by any chance you could test with?
> 
> Alex, this was apparently the right hint!  Here are my observations:
> 
> Plugging *only* the vga monitor in, and disconnecting the ADC one, the Mac refuses to boot.  It switches on, and after ~5 seconds (system test?) it automatically powers off (sounds like a Notebook's card?).  The only chance to boot is plugging in both monitors.  I first booted into OS X, and had both monitors synchronised.
> 
> I then booted into Linux, and now X comes up with the radeon driver, showing the X screen on the VGA monitor, and the well-known green shades on the ADC one.  This behaviour is independent of any 'ConnectorTable' option; there is no difference between starting without, and with any of your two settings above.
> 
> An other observation: The VGA monitor has a smaller resolution (old Belinea 1024x768), but X apparently used the size of the Formac attached to the ADC (1280x1024).

... and now I also tested all those "MacModel" options, always rebooting between two tests:
- ibook and powerbook-* produce no output/shades on the ADC connected tft;
- imac-g5-isight seems to be out-of-sync for the tft;
- mini-* and emac *do* actually produce a display on the tft, but smaller than the actual size (1152x864 instead of 1280x1024), with the right border being black, and a stripe from the top copied to the bottom.  Same happens with emac, but clipped to an even smaller size.

A log from the mini test is attached.

Is that helpful in any way?

Thanks, Albrecht.
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