[X2Go-Dev] Bug#1334: Bidirectional clipboard mode stops working with Windows 10 x2goclient

[Aki Ketolainen]

Package: x2goclient
Version: 4.1.2.0

I'm using x2goclient 4.1.2.0 on Windows 10. I have found two ways that
break the bidirectional clipboard mode, one for the MATE desktop and
one for the Plasma 4 desktop (both on the x2go server).

1) MATE desktop

- Open a connection to your x2go server.

- In Windows 10: Open a text editor. I use Notepad++.
   - Write a single character in the editor, then select it and use copy.

- In MATE desktop: Open a text editor. I use pluma.
   - Press spacebar once and then select the empty space with ctrl+a.
   - Use paste to paste the clipboard contents. At this point the 
clipboard
     functionality breaks.

2) Plasma 4 desktop

- Open a connection to your x2go server.

- In Windows 10: Open a text editor. I use Notepad++.
   - Write a single character in the editor, then select it and use copy.

- In Plasma 4 desktop: Open a text editor. I use emacs. If I use KWrite
   there is no problem.
   - In an empty emacs buffer, press spacebar once, press cursor left and
     then use ctrl+space to mark the selection starting point and press
     cursor right once to select the empty space.
   - Use ctrl+y to yank the contents of the clipboard. At this point
     the clipboard functionality breaks and emacs goes into a loop 
consuming
     100% CPU.

Both of these break the Windows 10 side clipboard so that it doesn't 
work
until I restart the computer.

The client machine's OS: Windows 10 64-bit
The client machine's version of X2GoClient, PyHoca-GUI or Pyhoca-CLI: 
4.1.20
Any relevant session settings in X2GoClient, PyHoca-GUI or Pyhoca-CLI: 
no
The server's OS: MATE desktop: Fedora 27 x86_64, Plasma 4 desktop: 
CentOS 6 x86_64
The server's version of the x2goserver package: MATE desktop: 
x2goserver-4.1.0.2-0.0x2go1.1.git20180801.1642.main.fc27.x86_64, Plasma 
4 desktop: x2goserver-4.0.1.19-3.el6.x86_64
The server's version of the x2goserver-xsession package: MATE desktop: 
x2goserver-xsession-4.1.0.2-0.0x2go1.1.git20180801.1642.main.fc27.x86_64, 
Plasma 4 desktop: not installed
The server's version of the nxagent package: MATE desktop: 
nxagent-3.5.99.16-0.0build1.1.git20180719.2988.main.fc27.x86_64, Plasma 
4 desktop: nxagent-3.5.0.32-3.1.x86_64
The server's version of any other relevant packages (e.g., if the bug as 
about MATE integration, the version of x2gomatebindings): MATE desktop: 
not installed
Any relevant settings in X2GoServer (that you changed from the 
defaults): MATE desktop: enabled BIG-REQUESTS

Best regards,

Aki