[X2Go-User] x2go for wayland

[Ulrich Sibiller]

Hi,

there's no sense in using x2gokdrive or x2goagent/nxagent with Wayland
because both are X servers. You can use them today (for applications
"speaking" X only) by using the Xwayland on the client, since that is where
the resulting X protocol messages need to be handled. Pure Wayland
applications will not work with this setup (although I don't even know if
such applications exist at all).
https://unix.stackexchange.com/questions/482129/can-i-run-wayland-application-in-x
states
that Weston is able to work as a proxy between wayland apps and X11.

So AFAIU a solution with Waypipe would be something completely different
where x2go only handles the session management.

I have tried to put this into a table (AFAIU). In || I list the the used
protocol:
X: standard X11 protocol
NX: nx compressed protocol
WL: Wayland
WP: Waypipe
XK: x2gokdrive protocol
XS: X11 tunneled through ssh

These are the possible communications ways:
  Server                                            Client
1 XApp       |X11|                                  Xserver
2 XApp       |X11| sshd       |XS|                  ssh              |X11|
Xserver
3 XApp       |X11| nxagent    |NX|                  nxproxy          |X11|
Xserver
4 XApp       |X11| x2gokdrive |XK|                  x2gokdriveclient |X11|
Xserver
5 XApp       |X11| nxagent    |NX|                  nxproxy          |X11|
Xwayland |WL| Wayland
6 XApp       |X11| x2gokdrive |XK|                  x2gokdriveclient |X11|
Xwayland |WL| Wayland
7 WaylandApp |WL|  Waypipe    |WP|                  Waypipe          |WL|
Wayland
8 WaylandApp |WL|  Weston     |X11| nxagent |NX|    nxproxy          |X11|
Xserver
9 WaylandApp |WL|  Waypipe    |WP|                  Waypipe          |WL|
Weston   |X11| Xserver

So we have to setup anything on the server that outputs one of the four
protocols: XS, NX, XK, WP. On the client side we have to route these four
protocols to either display them on an Xserver or a Wayland server. The
less components between app and server the better the experience. But to
support both server types and both app types there are some compromises
required.

I am not into any Wayland or Waypipe stuff, so correct me if I'm wrong.

Uli
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