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Cover image for A workaround for an RDP screen glitch issue on Parallels Desktop 16

A workaround for an RDP screen glitch issue on Parallels Desktop 16

craftzdog profile image Takuya Matsuyama ・1 min read

I recently switched from VMWare Fusion to Parallels Desktop for running my Windows and Linux VMs.
VMWare Fusion was unstable - it runs VMs basically fine but often crashed while I was sleeping for some reason. It happened on both Windows and Linux VMs, which looked hard to solve.
So, I tried a free trial of Parallels Desktop and found that it works smoothly without any issue.

But I encountered a strange bug when connected to the Windows VM with Remote Desktop from my laptop.
As you can see above, the screen is glitched, seemed like a GPU issue which makes RDP practically useless.
It turns out that it is a bug introduced in Parallels Desktop 16.

A workaround is to add video.metal=0 to the boot flag like so:

Boot flag

But obviously, it disables the graphic hardware acceleration with macOS' Metal API.
Hope it will be soon fixed.

Anyway, Parallels Desktop is working very well on my mac.

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craftzdog profile

Takuya Matsuyama

@craftzdog

Indie developer based in Osaka, Japan. A solo dev of Inkdrop: https://inkdrop.app/

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