- Feb 13, 2012
- ASRock B560M itx/ac - OC 0.6.8
- GT710 - 1920x1080
- Classic Mac
- Mobile Phone
will system isn't crashing screens just go black. the system is still running and the USB devices are actually functioning. and the devices are USB powered. the only one other than the occasional flash drive. is a Scarlet 2i2 which is bus-powered. wich was what doing this time. I unplugged it from one Hackintosh and plugged it into the one having the issue and boom the screens just went black and the audio was working and even the scarlet was working. it is just bizarre. it doesn't happen all of the time but I would say maybe once a month. Also, Unit is grounded and running thru a UPS.
Yes, the system doesn't crash. You can remote-in. All that's happening is the earth breach causes the monitor electronics to trip. It only happens with one device for me, but a multimeter confirms the spike - and the reaction. The internal controllers and circuity are partially shared between USB and a DP port, but not HDMI. Hence why external power was the cause.
Mind you, this is HDMI. I'm not sure how the shielding works for DP or DVI, however DP is a similar port type.
If a flash-drive is causing the problem ... Then my scenario doesn't apply. Sorry I couldn't help.