The virtual machine created by mcs, the problem of mouse positioning is not accurate.
If the virtual machine is created by mcs, the problem of incorrect mouse positioning can be solved by the following methods
Get the uuid of your VM (ensure that xentools is installed)
Shutdown the VM (otherwise, unexpected problems may occur)
Open the console of sever and enter: xe vm-param-set uuid= platform:usb=true platform:usb_tablet=true
Start the VM: xe vm-start uuid=xxx
