I was using a friend's old PPC G5, and the Dell flat screen he has went black. Couldn't get it to stay on. So I hooked up another monitor in the 2nd monitor socket, and the 1st monitor unexpectedly came on. Both displays worked fine. But if I disconnected the 2nd monitor, or even just turned it off, the Dell went black again. Anyone have any ideas or suggestions about what's going on? The Mac is vintage 2006, running 10.4.11
Hi, what port is the second Monitor connected to, VGA, DVI, or ADC? Oh and what Port the first one?
The 2nd monitor is in a DVI port on the left. The 1st monitor is in the main display port on the right. My friend bought one of the last PPC G5 towers that Apple released, so the main port should also be DVI. I'll check it out to be sure.
OK, do let us know, & maybe see if Monitor 1 works on the other port.
Both display ports are DVI.
Does Monitor 1 works on the other port.
Odd, but the monitors/ports are working normally again. Wondering if this unpredictable behavior might mean the graphics card is failing?
Have you tried reseating the card & looked for corrosion?
single monitor goes black, 2 monitors work fine
