Irregular blank screen on startup of Mac VM


New Member
Nov 6, 2023
Prague, Czech Republic
Hello guys, this is my first post here so please bear with me. First of all I would like to say that I totally fell in love with Proxmox virtualization capabilities and hopefully I will find a way how to support this fantastic product.

I have built my server myself (13700K, Z790, 32 GB RAM, RX 6600) and the Proxmox server was installed by a professional. Before I turn for help to him though I would like to get into this environment some more myself, hopefully with your help.

I have a Proxmox 8.0.4 running, MacOS Ventura 13.6.1 VM installed and running very well. The GPU is passed through, also running with no problems.

The problem I have seems to me not related to the GPU itself as it is a very strange behaviour. In let's say one of 5 cases when I start the VM (pushing the start button) the server add a line to the log at the bottom with an OK status. Also the green PLAY icon shows on the VM's icon on the left on the UI. But that's is. No signal from the GPU, no booting, nothing. Sometimes it happens that the VM gets picture and starts booting after 5 minutes, 10 minutes but mostly never. It seems like the VM was stuck at some point even before the boot proces itself.

Thank you for any comments on this.

Kind Regards, Jiri
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