Ubuntu 18.04 insists on really slow mouse double-clicks for me. If I double-click too fast, it gets treated as a single click. I'm running in a VMware Fusion 10.1.3 VM on a Macbook Pro host.
Ubuntu 18.04, not Windows:
- It happens on both the 18.04 standard Ubuntu flavor and on Lubuntu guests.
- It does not happen on 16.04 Ubuntu.
- It does not happen on a Windows 10 guest. (Quick double-click works.)
Tap, not Click:
- It happens when I double-tap the Trackpad.
- It does not happen when I do the physical double-click.
- It does not happen when I double-click a real mouse.
Other:
- It happens whether I set Ubuntu to a slow or a fast double-click speed.
- Triple-tap gets recognized as a double-click.
- I don't have a CPU-exhaust problem because CPU is about 10%.
- The first double-click after I login can be normal speed.
Work-arounds:
- Set the Ubuntu mouse double-click speed to a very long time, and click-pause-click.
- Triple-click.
I saw similar symptoms impacting someone with a Logitech trackpad. That was traced to a defect in libinput and will be fixed in 18.10, but I tried the 18.10 daily and it is still there.
My guess is that the two taps from the Mac host are mapped to two very rapid mouse-down messages in the guest, and they are getting debounced.
How can I tell Ubuntu that it is OK to accept rapid double-clicks?
