Hi Mihai, hi Alex, the new RandR based Xinerama is about to be merged to the nx-libs 3.6.x branch. Here are some ideas how to make the feature addressable in X2Go. 1. X2Go Client can server-side query x2gofeaturelist, it outputs the string X2GOAGENT_RANDRXINERAMA. If that string is in x2gofeaturelist, then the new Xinerama code is present in x2goagent/nxagent. 2. We are about to add a xinerama={0,1} NX option for the NX options file (Ulrich is probably reviewing right now...). This should be used through NX proxy (I guess) for setting up Xinerama in X2Go Agent. It works on session startup and session resumption. 3. One can disable Xinerama completely via cmdline switch for x2goagent: -disablexineramaextension. My suggestion is: o you keep the xinerama.conf file with X2GOAGENT_RANDRXINERAMA, but put "enabled" or "disabled" into it o the "enabled" switch is rather for human beings, because the real enabling takes place via NX options o if "disabled" is set, then x2gostartagent should notice that and add -disablexineramaextension Also, -disablexineramaextension should be added (commented out, of course, thus for reference) to /etc/x2go/x2goagent.options. So far from Uli's and Mike's Xinerama hacking frontier... Greets, Mike -- DAS-NETZWERKTEAM mike gabriel, herweg 7, 24357 fleckeby fon: +49 (1520) 1976 148 GnuPG Key ID 0x25771B31 mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de freeBusy: https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb