[qubes-users] HVM standalone: no mouse after suspend-to-ram

Dear group,

I am having issues with the mouse not coming back after standby.

I am running Qubes 4.1.2 (R4.1), kernel 5.15.52-1.fc32.qubes.x86_64
The VM is a HVM standalone, running Tails OS, kernel 6.1.0-13-amd64 (Debian 6.1.55-1).
After I wake Qubes from suspend-to-ram, the mouse doesn't work in Tails any more.
The mouse still works in Qubes OS and other VMs. The (internal, non-usb) keyboard still works everywhere.
I do not have any other standalone VMs installed to compare.
In Tails, after waking up I only see two errors:

clocksource: timekeeping watchdog on CPU3: Marking clocksource 'tsc' as unstable because the skew is too large

and

usb 1-1: Failed to suspend device, error -110

where usb 1-1 seems to be the "QEMU USB Tablet" virtual mouse.
Reading up, "error -110" seems to be some kind of timeout error.

Any ideas on this one?
Is it even Qubes or XEN or qemu related, or rather on the Tails side?

(Yes, Tails doesn't like to be in VMs. Yes, this comes with its own security implications.)

Thank you,

Stickstoff