I am just experimenting with Windows Server Core on 2016 for the first time (running under VMWare ESXi 6.5) and I keep having graphical bugs every so often, if the screensaver comes up, when I move the mouse or press the keyboard, everything remains black until it is redrawn.
For example, with task manager open, if I press tab a few times, I see the following:
This is getting quite annoying and I was wondering if anyone has seen it before or if anyone can offer any advice?
A quick solution I have found is to press Windows Key + Left, then restore to original size in order for the entire screen to be redrawn, but, I would prefer to not have to do this.
p.s. the graphics card within ESX has been assigned 4MB - is that enough or should I increase? I have full install of Windows Desktop Experience that are using 4MB, so, I thought it should be ok.