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I would try one of the mode 5 modes (separate sync). Probably one of the multi sync modes. 21" 14679 // this might actually be the setting for MultiSync 16" 16" 14678 // this might actually be the setting for MultiSync 21" 14" 145789 Maybe you just need to boot to Open Firmware instead of...

The pvr (Processor Version Register) of the PowerPC CPU has the info. https://pearpc.sourceforge.net/pvr.html I think reading directly from the pvr in OS X or OS 9 requires a supervisor mode instruction which is difficult to do so I get the value from the registry instead. Open Firmware reads...

I've updated the three projects so now flashrom should be able to get as far as your patch allowed. Can you verify that it reads the rom correctly (I guess it should have PCIR in the header). sudo ./flashrom -VVV -p satasii -r satasii.rom > satasii_test1.txt dd if=satasii.rom bs=256 count=1 |...

There's a thread that describes the adapters and diodes and pinouts https://tinkerdifferent.com/threads/documentation-for-db15-to-vga-adapters.318/

@Melkhior, true, the VGA or a Multisync option might be the only ones needed to use most displays with Mac OS. However, an adapter that can pretend to be any of the known displays would be useful when one wants to see how Mac OS behaves when a specific display type is connected. The info was an...

https://tinkerdifferent.com/threads/documentation-for-db15-to-vga-adapters.318/ Examining the chart, including all the displays listed in IOMacOSVideo.h, we come up with these options...

I wrote an app in Think Pascal in 1996 to generate sense line schematics. Each possible sense combination shows 4 schematics. The leftmost is probably the simplest. I suppose two diodes in parallel, one in each direction, would be equivalent to a wire. There's 512 possible circuits (2(diode...

I will check that darwin3 and directhw get different ioconnect_t and that the user client connection to flashrom should appear twice in ioreg.

I haven't done much testing yet (busy on other projects) but I'm starting to look at it now. Thanks for pointing me at the problem. The pcilib has 4 different PCI access methods for macOS. pcilib tests each access method in order until it finds one that works. Each access method has its own...

What about Nvidia graphics cards? Which have 2D/3D acceleration for Mac OS 9? For Power Macs, maybe only older Nvidia GPUs support OS 9 and the newer ones are only good for OS X though some can be used in OS 9 for 2D stuff? I wish there was a database to rank the cards in each OS. Newer Nvidia...

There exits Sonnet specific nvramrc patches for Sonnet card PCI-PCI Bridge problems that you can download. A nvramrc patch for general PCI-PCI bridges in Gazelle (6500, TAM) based Power Macs is discussed at #232 I don't know if Alchemy (6400) has the same problem. If it does then a...

Ok, thanks. At least it found the PCI card and the BARs. I guess now I need to look more closely at what it wants to do with the BARs. I may need to get a SiI 3112 or 3114 card or make the code think a different PCI card that I have is a Sil card.

Looks like there was a problem in the DirectHW library. pciutils works because it contains its own version of the DirectHW library. I updated the 3 projects so now flashrom should be able to find the PCI card in Mac OS X 10.4. First verify that flashrom can find the card: sudo flashrom -VVV -p...

I made forks of pciutils, flashrom, and directhw that you can compile on Mac OS X 10.4 and 10.5 and later. https://68kmla.org/bb/index.php?threads/silicon-image-sil3112-flashing-easier-way-using-flashrom.7013/post-475781 pciutils works (with directhw) so you can do sudo lspci -vvvnnxxx >...