[X2Go-Dev] Bug#1369: Keys do not release when using Emacs in X2GO Client

[Kruis, Anselm]

Hi,

I observed the bug described in this thread and did some experiments with Uli Sibiller.

Client: 
- Windows 10 Enterprise, Version 1909
- X2GoClient V. 4.1.2.2
Additional X-Servers on Client
- VcXsrv 1.20.6.0
- VcXsrv 1.20.9.0
- MobaXterm 21.1.0.4628

Server:
- Centos 7
- nxagent-3.5.99.26-1.el7.x86_64  (and also an experimental version nx-3.5.99-sc36clipboard3)
- x2goserver-4.1.0.3-9.el7.x86_64
- x2goagent-4.1.0.3-9.el7.x86_64
- x2goserver-common-4.1.0.3-9.el7.noarch
- x2goserver-xsession-4.1.0.3-9.el7.noarch

X2go Session: application, terminal emulator (konsole), X-server with option -multiwindow

We tried various combinations of parameters and program versions. Findings:

- The problem only occurs with VcXserv (all versions, the one integrated in X2GoClient as well as two stand alone versions). With the X-server provided by MobaXterm (%USERPROFILE%\Documents\MobaXterm\slash\bin\XWin_MobaX.exe) everything in fine.

- The problem depends on the following VcXserv  command line options:
   + option "-r": it turns of keyboard auto-repeat. If auto-repeat is off, the problem does not occur
   + option "-clipboard": without this option, the problem does not occur
   + option "-noprimary": with this option, the problem does not occur

So adding "-noprimary" to the VcXserv options or using XWin_MobaX.exe seems to be the way to go for now.

Regards
  Anselm

--
Anselm Kruis
Senior Solution Architect
MSE OPS HPCS S PS
T +49-89-35 63 86-874
M +49-16 05 82 82 00
anselm.kruis at atos.net
science + computing ag
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