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Does anyone else have a problem where secondary displays on mac just stop working, and the only way to fix it is to unplug and replug the display cable, or cycl
by seanalltogether 2y ago
Does anyone else have a problem where secondary displays on mac just stop working, and the only way to fix it is to unplug and replug the display cable, or cycle inputs on the monitor? Nothing I've done seems to fix it. I don't know if its because its a 144hz monitor or what, but it never happened on my previous 60hz monitors and it never happens when i plug into my windows box.
- nikanj 2y agoPlenty, but fortunately the fix is just an unplug+replug. In the past, the secondary display kept working but a sneaky kernel task took over 200% CPU, and you had to 1) realize the computer is feeling even more sluggish than normal 2) know what the heck kernel task is 3) know that un/re-plugging will fix the CPU load https://www.youtube.com/watch?v=_kppD1PotFw https://www.youtube.com/watch?v=_kppD1PotFw
- chedabob 2y agoWe have one particular model (P2419HC) of Dell display at work that seem to do this. As best as I can tell, there's some kind of active component in the USB-C cable that is only powered by the monitor, and it doesn't "reset" itself properly.
- baq 2y agoI thought I was alone! Cycling inputs doesn't even work for me, I must unplug the monitor physically. Not even BetterDisplay can fix it.