External Monitors flicker post-sleep on Macbook Pro

[apressas]

I use a nTB Macbook Pro 2017. After long periods of sleep the two external monitors I use via USB-C -> HDMI adaptors behave abnormally (either one, or the other usually). They turn on and off, show artefacts or a black screen with just the cursor. Another nTB Macbook of 2016 behaves similarly, so I do not think it is a hardware problem - plus it works perfectly if I restart it.

This leaves us to the Intel graphics implementation in MacOS Mojave. Does anyone have a similar problem? Have you managed to solve it somehow? Maybe some third party program or extension that interferes with the driver? I usually have a couple of IDEs and many PDFs, Safari and TexStudio and Pages when I put it to sleep. Any ideas guys? This used to work perfectly on my 2013 Macbook Pro.

 

[robvas]

Mine does the same thing - do you have an Acer monitor by any chance? It doesn't do it with my Dell monitor, just Acer.

I'll wake up in the middle of the night and my monitor will be flashing in the other room. Kinda scary the first time it happened.

 

[apressas]

Mine does the same thing - do you have an Acer monitor by any chance? It doesn't do it with my Dell monitor, just Acer.

I'll wake up in the middle of the night and my monitor will be flashing in the other room. Kinda scary the first time it happened.

Haha no it is a Dell 24" 1920x1200 and a Benq 27" 2560x1600, both connected via HDMI that passes through HDMI splitters. So you leave your macbook connected when it sleeps and it still does the same? I thought that happens because I disconnect mine! How do you handle it?

 

[robvas]

I just manually shut them off

 

[apressas]

I just manually shut them off

i thik we talk about different stuff. in my case the problem occurs after i wake up the laptop after long periods of sleep.