I found that when I use a Windows VNC client to connect to my Pi, it has a very nice emulation of right click, middle click, etc.

The functionality I cannot get from my normal touchscreen setup:

  • Pi 3b
  • Stretch
  • 7" HDMI touchscreen

When I connect my Pi's VNC client to my Pi VNC server ( I get the infinity problem. (infinitely repeated windows of self)

When I start a virtual desktop (vncserver-virtual) and then pint the VNC client to it seems to, sort-of work, except for the following error:

GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: An authentication agent already exists for the given subject

Oh- and the VNC client on the Pi seems to lack the very nice touch screen trick :(

Am I chasing a red herring?

  • Are you trying to get right-click to work on the touchscreen or on VNC? I'm not clear on what the question is. – Roger Jones Mar 29 at 13:42
  • I want right click to work on the touch screen. Since I haven't yet seen anyone with a working solution, I was hoping to use a loopback vnc client- since RealVNC has implemented a click-and-hold solution. – confused-fish Mar 29 at 14:38

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