Since upgrading to 10.15.4 my 4k display Asus PQ321Q won't work and just shows a black no signal screen. This monitor was working fine a few weeks ago in 10.15.3 4k@60hz but now the only way to get it to work is set it to SST at 30hz which is unsuable for me.
I tried updating to 10.15.5 beta and now went back and reinstalled clean to 10.15.3 but still nothing. Have tried resetting PRAM and SMC a few times but nothing. Thought maybe it's the Display port cable so I have another one coming soon to test. It's kind of ******** it's not working when it was fine before.
AMD Radeon Pro 5500M 8 GB
Anyone have any experience or luck? I know that daisy chaining has issues with DisplayPort but I'm just connecting straight from the monitor to MBP. OS X shows the display connected and I can change resolution but no picture.
EDIT: Works fine in windows, so it's an OS X driver/software issue, holy crap it's been like 5 years with 4k monitors why can't Apple make this work...
I tried updating to 10.15.5 beta and now went back and reinstalled clean to 10.15.3 but still nothing. Have tried resetting PRAM and SMC a few times but nothing. Thought maybe it's the Display port cable so I have another one coming soon to test. It's kind of ******** it's not working when it was fine before.
AMD Radeon Pro 5500M 8 GB
Anyone have any experience or luck? I know that daisy chaining has issues with DisplayPort but I'm just connecting straight from the monitor to MBP. OS X shows the display connected and I can change resolution but no picture.
EDIT: Works fine in windows, so it's an OS X driver/software issue, holy crap it's been like 5 years with 4k monitors why can't Apple make this work...
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