On Mon, 4 Nov 2019, Brad Boyer wrote: > > I'll try the PB190 first anyway. It should be easier due to not needing > to setup a monitor. I think you can put the 630 into a standard VESA video mode (with MacOS or Linux) given the right adapter/cable. I have a pin-out somewhere. > I'm not sure if I ever booted Linux on either of them, since I acquired > both about the time I started getting too busy to spend time on such > things. I just found the Performa, and it's actually a Performa 630CD > but I don't see any obvious difference based on the specs. > > I just took a look at the macide driver, and it appears to do basically > nothing other than pass a list of addresses into the core ide code. It's > one of the smallest drivers I've ever seen. > The fly in the ointment is interrupt handling. There is a theoretical bug. (Though it doesn't seem to hurt in practice.) AFAIK the hardware is publicly undocumented and so we need to do experiments like this: https://github.com/fthain/linux/commit/01405199e8d05500bf458df690027655f526a7fd My suspicion is that macide_clear_irq() does nothing useful. It's not called on a Powerbook 190. Maybe it is needed on a PowerBook 150 and Performa 630, maybe not... > > But watch out for leaking capacitors and batteries... > > I should pull out every machine in my collection and look for those > sorts of issues. None of them have been checked in at least 5 or 6 > years. > None of the machines in my collection have any batteries now. Desoldering the Ni-Cd PRAM battery from a Powerbook 14x/16x/170/180 is difficult but necessary. Powerbook 150 and 190 are easier (no desoldering needed). -- > Brad Boyer > flar@xxxxxxxxxxxxx > >
