Cannot use keyboard after restoring to snapshot (PD17)

T

toonetown

Member
After upgrading to Parallels Desktop 17, if you restore to a snapshot with a running OS (either windows or macOS), you are unable to type in the VM. Mouse events work, but keyboard appears to be disconnected. We've seen this on VMs running Windows 10 and macOS Big Sur - with the parallels tools installed in both VMs.

Restoring to a non-running snapshot (one that was taken while the VM was powered off) works just fine. So does rebooting the VM (after reboot, the keyboard works). It only occurs when you restore to a snapshot of a running VM.
 
I too am experiencing this with PD 17 when I install Big Sur then load a time machine backup onto that VM. Any ideas on a fix?
 
I have sent technical data (Report ID 377838714), and recorded a screencast which shows the issue. You can get the screencast at http://www.toonetown.com/nathan/projects/KeyboardNotWorking.mov (it was bigger than the 10.5MB allowed to attach it to the technical data report).

This is quite disruptive in doing testing (the VM I captured this screencast on is a clean OS VM with just minimal applications installed that I use for software development and testing). It means that any snapshots taken need to be of the VM in shut down state or the snapshots are pretty much useless.
 
I've seen this on both Windows and Mac. It is reproducible by suspending a VM as well. Does not reproduce when pausing a VM.
 
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