[Thinlinc-technical] Dual-Screen on Raspi 4 with thinclient

[Bernhard Eck]

Just got my Raspi 4 and tried it in a Dual-Screen setup with 
raspbian-OS. The provided arm-client runs, only problem is the 
displaying. The thinlinc-client recognizes the full resolution of both 
screens (which are identical in my case) but uses only the display where 
the client was started on, the second screen is not used and still shows 
the normal raspbian background picture. But inside the thinlinc-window I 
get the full resolution - the picture scrolls left or right if the mouse 
comes near the border of the window. RDP-clients like rdesktop of 
xfreerdp doesn't have this problem, so the X-setup should be correct.

Any ideas how to solve the problem and make thinclient use both physical 
screens?

Regards,

Bernhard Eck