https://bugs.kde.org/show_bug.cgi?id=511773

--- Comment #7 from Fabio <[email protected]> ---
Ok,  the "Client does not support H.264 in YUV420 mode!" is something I've
already dealt with.
It could be this issue:
https://invent.kde.org/neon/backports-noble/freerdp3-noble/-/commit/72a2135cdb35c5ddb92564a7974583cfe7147f5d
Both krdc and krdp are using libfreerdp3 to implement the rdp functionality.
While krdc supports all the graphic pipelines from libfreerdp3, krdp only
supports H.264+YUV420 since that's what it gets whils screen recording from
PipeWire.
Unfortunately Ubuntu explicitly disables ffmpeg supports in freerdp
(https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=880157,
https://packages.ubuntu.com/questing/libfreerdp3-3)
So, krdc (and other libfreerdp-based rdp clients in ubuntu) lacks h264 support
because of the missing ffmpeg, while krdp only supports h264.
In KDE Neon (basically ubuntu+kde) we patch the ubuntu package to re-enable
ffmpeg support. 
Possible fixes/workround:
 * implement other graphics pipelines in krdp;
 * use different freerdp/krdc/remmina packages, either from kde neon or
flatpacks (at least the krdc flatpak includes ffmpeg support)
 * if you were ok with Krfb (aka VNC), it's still available and it should work
under wayland.

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