Android RDP client keyboard not passing to Hyper-V or Virtual box linux guests.

Question

Android RDP client keyboard not passing to Hyper-V or Virtual box linux guests.

k kirk 11

When using the Android RDP client with an S21 Ultra using Dex I am easily able to remote into my Win 10 machine. They BT keyboard and mouse work as expected. When trying to access an Ubuntu vm inside the Windows 10 host the mouse works fine but the keyboard does not. Thinking it might be the keyboard I've tried several including the one that works when connecting from a Win RDP client and the phone's software keyboard and have the same result of no keyboard in the Ubuntu VM. In Virtual Box with an Ubuntu 20.04 guest with Guest Additions installed, if I am sitting in front of the Win 10 host all is well. Using Android RDP - no keyboard. Thinking it might be VBox I installed Hyper-v on the host and have the same result. I should mention that I can go from a Win 10 RDP client > Win 10 host > Ubuntu guest with no issue. It just seems like the keyboard isn't getting passed to Ubuntu when connecting via Android. I am using the latest version of the Android RDP, my phone is running the latest version of the os all computer os's are up to date.

My setup and what has/hasn't worked:
Samsung S21 Ultra running Dex and Android 12
Latest version of Microsoft RDP Client for Android
Latest version of Virtual Box with Guest additions installed
Latest version of Hyper-V
Host is latest version of Win 10 Enterprise

Android RDP client > Win 10 host > Ubuntu 20.04 VirtualBox client - no keyboard
Android RDP client > Win 10 host > Ubuntu 20.04 Hyper-V client - no keyboard
Android RDP client > Win 10 host > Win 11 Hyper-V client - keyboard ok
Win 10 RDP client > Win 10 host > Ubuntu 20.04 VirtualBox client - keyboard ok

I've searched online for an answer till my fingers are blue. Any ideas of what to try next?

Jeff Howard 1 Reputation point

2022-06-09T01:08:54.067+00:00

I have noticed the same experience as you with an Ubuntu VM. I am going Android RDP --> Server 2019 -->Ubuntu VM.

I also tried the app Remote Desktop Manager. That worked but only for a short time before mouse stopped working as well as the keyboard.

I also tried opening a direct to VM RDP file. That tried to open in MS Remote Desktop but then got a connection failed. It may not be able to read that type of RDP file
k kirk 11 Reputation points

2022-06-09T18:22:51.39+00:00

Update: I was never able to find a way around this. It seems that using three OS's just never worked. If two of the OS's were Windows the keyboard worked. Throw Android into the mix and it never worked. I don't know if the behavior would be the same with a Win 11 host but would be interested if anyone has tried it.
Koay Xian Cong 0 Reputation points

2023-10-05T15:07:19.29+00:00

Update: Still have the same issue with Win 11 here. When connecting from Android RDP -> Win 11 host -> Win 10 VirtualBox, the mouse works fine but there are key mapping issues when using the keyboard (i.e. '1' mapped to 'n', '2' mapped to 'm', etc.) on Win 10 VirtualBox. Tried with a different keyboard which works well on the host connecting to VirtualBox but does not work on Android RDP. Still looking for workarounds if there are any.