Num lock is not synchronized between host and guest

asked 2020-08-31T09:35:55.417+00:00
Daniel Alder 1 Reputation point


  • (host) have num lock led on on the host, keypad actions = digits
  • (host->vm) change focus to a freshly started linux vm
  • (vm) keypad actions = cursor movements
  • (vm) press num lock key in the vm
  • (vm) keypad actions = digits
  • (host) back on host, keypad actions = cursor movements
  • (host) press num lock on host
  • (host) back on host, keypad actions = digits
  • (vm) again in vm, keypad actions = digits

My VM is a linux, without extra settings. You can use any live ubuntu CD image. Host is an up-to-date Windows 10

As you can see, past approaches tried to fix the VM (, but the problem is the UI between Host and VM. The mentioned Linux works fine in VMware and VirtualBox, both with and without guest extensions

A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
1,818 questions
No comments
{count} votes

1 answer

Sort by: Most helpful
  1. answered 2020-09-01T07:54:34.877+00:00
    Xiaowei He 9,746 Reputation points


    Please check if the Windows 10 host has installed the April 21, 2020—KB4550969, as far as I know, it may address the issue that Num Lock and Caps Lock keys out of sync between client and host during Remote Apps connection.

    If the reply could be of help, please help to accept it as an answer, thanks for your cooperation!
    Thanks for your time!
    Best Regards,

    No comments