Hold space-bar+left-click not working in Adobe

[tuxicoman]

Hi Everyone,

I am trying to setup a Windows 10 VM on my Xenial laptop in order to use Adobe XD.
I made sure that both the host and the guest machine are up to date and installed the Guests Additions.

My issue is that, in Adobe XD, the Space+Left-Click functionality to drag the work-space around doesn't work.
I can see the cursor changing to the "grab-hand" for a sec and then starts flickering between the regular cursor and the hand.

As to am able use the mouse for dragging an object, I suspect the issue to be related to the keyboard inputs.
Also, the other key+mouse combination surch as Shift+Left-Click or Alt+Left-Click (but those are modifiers keys, not characters).

VirtualBox: 5.1.34-dfsg-0ubuntu1.16.04.2
Host: Ubuntu Xenial 16.04 (64 bits) - 4.4.0-128-generic
Guest: Windows 10 (64 bits)

Any idea on how I could get this to work?

Thanks!
Tuxicoman

[socratis]

Have you tried searching for that error independently of VirtualBox? A quick search reveals a lot of hits for that kind of behavior. Especially with trackpads! Start by looking into that, I've seen several workarounds in a 2' search...

[tuxicoman]

Hi Socratis,

Yes i have, but none of the results have helped me so far.

The issue occurs with both USB mouse and integrated trackpad.

To further diagnose the problem:
- I tested Adobe XD's space+click on a native windows 10 install (dual boot on the same machine) and it works.
- I also tested space+click in Gimp on my ubuntu instance and it works.

I suspected the palm detection to be messing with me but why would it work outside VirtualBox?

[socratis]

Does it work if you attach a mouse and not rely on the trackpad? It may be your hosts' trackpad software and how that's "passed on" to the VM.

[tuxicoman]

Hi Socratis

I tested that as mentioned in my previous answer and i didn't work (or do i miss-understand what you suggest?).

I have also tried deactivating the trackpad while the USB mouse is active and that didn't solve it either.

I am using libinput to handle my input devices.

Cheers
Tuxicoman

[tuxicoman]

Also, just messing around with the XD in Virtualbox, I noticed that that if, while I hold Space, I hit an arrow key, the flickering stops and I can use the drag pan functionality on click (without needing to hold the arrow key after).

It looks to me as it is more on the keyboard side, and not on the mouse side that the events are sent wrongly to the VDI.

I checked that the host and the guest are set with the same keyboard layout (English US).