https://bugs.kde.org/show_bug.cgi?id=503187
Bug ID: 503187
Summary: Multiple monitors on client and host machine are not
utilized by KRDC
Classification: Applications
Product: krdc
Version: 25.04.0
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: wishlist
Priority: NOR
Component: general
Assignee: uwol...@kde.org
Reporter: steffen-wink...@posteo.de
Target Milestone: ---
When connecting with KRDC to a computer that has two monitors attached while
the connecting computer also has two monitors attached, it is currently not
possible to utilize both monitors on both machines. Instead only one monitor is
accessible.
STEPS TO REPRODUCE
1. Connect to a PC that has two monitors attached while the PC you are
connecting from also has two monitors attached to it
OBSERVED RESULT
Only one monitor is accessible. The host machine thankfully realizes that the
RDP client is only using one screen so throws all windows and applications onto
that monitor. Even when entering fullscreen mode only one monitor is used.
EXPECTED RESULT
There should be a button to open the other monitor - or other monitors when
even more monitors are connected. If the fullscreen button is clicked the
default action should be that as many monitors are utilized on the client
machine as possible to display as many of the host's monitors. Each monitor
obviously needs to have independent scaling from the others.
As an example for a software that is capable of this, check out Remmina. It's a
bit crash prone and it can only do this on X11 but it works.
SOFTWARE/OS VERSIONS
Windows (host machine): Windows 10
Operating System: Arch Linux
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.14.2-arch1-1 (64-bit)
Graphics Platform: Wayland
ADDITIONAL INFORMATION
Remmina developers currently say that they can't implement this on Wayland due
to a missing feature in the Wayland protocol, which would be this one:
https://gitlab.freedesktop.org/wayland/wayland-protocols/-/issues/99
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