Parallels 16 - Strange Graphic Problems with RDP on Win10

Hey,

just updated to Parallels 16 on my working machine. I connect to the machine via RDP and it seems like a strange bug is going on here. Only moved around with my mouse and this happened (as seen in the attachment). Did not had this problems with Parallels 15 at all. Tried reinstalling to tools and change settings in my rdp connection.

 

I also experience similar issue after upgrading to Parallels 16 (running on macOS Mojave), RDP connection to Windows 10 VM has screen contents "shifting" like in blocks all the time and hence practically useless. VM's local screen works okay, only affects RDP. I had to downgrade back to Parallels 15 after which everything started to work correctly again.

 

Same problem for me. I'm back to release 15 and waiting for the issue fix.

 

as a workaround I completly deinstalled the parallel tools.

 

I can confirm this happens to me as well, after updating to Parallels Desktop 16 Pro. What I did was to disable WDDM driver for RDP sessions. This now makes sense thanks to grubgrub's workaround that removing the Parallels Tools also solves the issue. Seems like the problem is the WDDM driver for the virtual gpu.

 

Hi guys,
please add the boot flag below and check the issue:

video.metal=0

 

Perfect, it's working now.

 

All graphical errors are gone - Thanks!

 

Disabling this causes issues with gaming. Not an acceptable solution.

 

Also experiencing this issue. I've downgraded to Parallels 15 as disabling metal is not an option. This needs to be fixed in a future version.

 

It solved the issue. But I hope it will be fixed so that we can use it with metal enabled.

 

Any real updates on this? Disabling Metal is not a fix.

 

Thanks for flagging this issue. I'm having the same problem. Found this discussion via a Google search Will implement the boot flag fix until something better is available.

 

Adding the video.metal=0 boot flag has not worked for me. Instead, the Windows 10 VM glitch has gone from solid colour blocks like the OP, to scrambled patterns as per attached. Any other thoughts on this one @Maria@Parallels

 

Hi, we're working on the issue resolution.
Once we get any update we will let you know.
Thank you for sharing your thoughts here.

 

video.metal=0 did not work for me either. VS and the Windows Taskbar are all scrambled.

 

Hello guys, Parallels Desktop 16.0.1 version has been release.
Please update your Parallels Desktop to the latest build and check the issue.
Share with us any results please.

 

I was able to update and test -- it's working great for me now!

Thank you so much for resolving this issue!

 

Hi @Maria@Parallels, I'm still seeing the same thing on 16.0.1 (48919)

 

Hi, did you test the same behavior with video.metal=0 boot flag?