#1197 - Multihead fullscreen not working with TCE client in displaymanager mode

X2Go Bug report logs - #1197
Multihead fullscreen not working with TCE client in displaymanager mode

Reported by: Walid MOGHRABI <w.moghrabi@servicemagic.eu>

Date: Mon, 24 Jul 2017 13:20:01 UTC

Severity: normal

Found in version 4.1.0.0-2017.03.11

Subject: Bug#1197: [X2Go-Dev] Bug#1197: Multihead fullscreen not working with TCE client in displaymanager mode
Reply-To: Walid MOGHRABI <w.moghrabi@servicemagic.eu>, 1197@bugs.x2go.org
Resent-From: Walid MOGHRABI <w.moghrabi@servicemagic.eu>
Resent-To: x2go-dev@lists.x2go.org
Resent-CC: X2Go Developers <x2go-dev@lists.x2go.org>
Resent-Date: Wed, 26 Jul 2017 09:05:03 +0000
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Date: Wed, 26 Jul 2017 11:02:37 +0200 (CEST)
From: Walid MOGHRABI <w.moghrabi@servicemagic.eu>
To: 1197@bugs.x2go.org
Cc: uli42@gmx.de
Message-ID: <2064062569.5456728.1501059757694.JavaMail.root@servicemagic.eu>
In-Reply-To: <1866685789.5443653.1501058122766.JavaMail.root@servicemagic.eu>
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Hi again, Just to add a few more informations, here is the xrandr output taken from the TCE itself (not from within the x2go session) : ================================================================================================ root@TCE-CLIENT-DELL-VOSTRO430-4D1ZR4J:~# xrandr --display :0 Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192 DVI-I-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 510mm x 287mm 1920x1080 60.00*+ 1280x1024 75.02 60.02 1152x864 75.00 1024x768 75.08 60.00 800x600 75.00 60.32 640x480 75.00 60.00 720x400 70.08 HDMI-1 disconnected (normal left inverted right x axis y axis) VGA-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 510mm x 287mm 1920x1080 60.00*+ 1280x1024 75.02 60.02 1152x864 75.00 1024x768 75.08 60.00 800x600 75.00 60.32 640x480 75.00 60.00 720x400 70.08 ================================================================================================= As you can see, both monitors are perfectly detected. Regards, Walid Moghrabi TRAVAUX.COM BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403 13591 AIX EN PROVENCE CEDEX 3 ----- Mail original ----- De: "Walid MOGHRABI" <w.moghrabi@servicemagic.eu> À: uli42@gmx.de Cc: 1197@bugs.x2go.org Envoyé: Mercredi 26 Juillet 2017 10:35:22 Objet: [X2Go-Dev] Bug#1197: Multihead fullscreen not working with TCE client in displaymanager mode Hi guys, Just to give a bit more informations on my TCE setup : it is not based on the live-build scripts because it is not well suited for Ubuntu 16.04 and to be honest, I never managed to get a working live build that way so I gave up. My TCE image is more or less a tweaked ubuntu 16.04 debbotstrapped image with x2gothinclient-displaymanager installed (+ a few more things but really, this is a pretty basic ubuntu server image + x2gothinclient installed) By the way, Stefan put the finger on one point : in /usr/sbin/x2gothinclientd, I commented the whole randr stuff block (from line 114 to line 175) to make a try then restarted the x2gothinclient-displaymanager but while it didn't fix my multimonitor support within the X2Go session, it fixed a bad ordering of the monitors. Before that, my monitors were inverted (right was left and left was right), commenting this block lead to right ordering of the monitors this time. Concerning your test Uli, doing "Ctrl+Alt+F" within the X2Go session on the TCE did nothing. I don't know if it was meant to do anything but I did it many times following the action by a xrandr output in the console, nothing changed, same values all the time (one big screen, not 2) Regards, Walid Moghrabi TRAVAUX.COM BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403 13591 AIX EN PROVENCE CEDEX 3 ----- Mail original ----- De: "Ulrich Sibiller" <ulrich.sibiller@gmail.com> À: "Stefan Baur" <X2Go-ML-1@baur-itcs.de> Cc: 1197@bugs.x2go.org, "Walid MOGHRABI" <w.moghrabi@servicemagic.eu> Envoyé: Mardi 25 Juillet 2017 22:11:28 Objet: Re: Bug#1197: Multihead fullscreen not working with TCE client in displaymanager mode On Tue, Jul 25, 2017 at 6:55 PM, Stefan Baur <X2Go-ML-1@baur-itcs.de> wrote: > Hi folks, > > Just an idea - some XRANDR-related stuff that is specific to > X2Go-TCE-Live is happening in this file: > > <https://code.x2go.org/gitweb?p=live-build-x2go.git;a=blob;f=config/includes.chroot/lib/live/config/2800-x2go-thinclientconfig;h=49b9f0f8e0f85d4471be6c4e1cbcad83115b3009;hb=65d1f40a812f4ae95dddd97c85b995b10ba9e678> > > Which, in turn, was inspired by this file from X2Go-TCE-Classic (NFS): > > <http://code.x2go.org/gitweb?p=x2gothinclient.git;a=blob_plain;f=displaymanager/sbin/x2gothinclientd;h=6897d42d17bd6778e7de5e62ec3f51727d4e8800;hb=HEAD> > > As this is specific to the TCEs, maybe this is the root cause of the > difference you're seeing? Hmmm, I doubt that. Usings NX the client side is not really doing anything X wise. It's the nxagent that calls XineramaQueryScreens(). It asks the client side X server (the real X server) for its Xinerama configuration. We have learned from the previous outputs that Walis had sent that the real X server does not have Xinerama configured. Therefore the agent does not see any Xinerama configuration. (The only possible exception to this would be nxproxy running with LD_PRELOAD of libfakexinerama.so which is not happening here.) Now, in the Laptop scenario you can see via xrandr that nxagent has gotten the Xinerama information somehow. Otherwise it would not have been possible to setup two NX outputs/monitors/heads. The two logfiles are almost the same except the last line where the in the Laptop scenario you can see this line Info: Screen [0] resized to geometry [3840x1080] fullscreen [1]. This line is printed if nxagent has received and processed a sizing event. In the TCE scenario no sizing event was sent to nxagent which - if really true - is probably the TCE window manager's fault. Walid, can you please try pressing CTRL-ALT-F twice in the TCE scenario? What is xrandr showing afterwards? Uli --- DISCLAIMER: This e-mail is private and confidential and may contain proprietary or legally privileged information. It is for the intended recipient only. If you have received this email in error, please notify the author by replying to it and then destroy it. If you are not the intended recipient you must not use, disclose, distribute, copy, print or rely on this e-mail or any attachment. Thank you _______________________________________________ x2go-dev mailing list x2go-dev@lists.x2go.org https://lists.x2go.org/listinfo/x2go-dev --- DISCLAIMER: This e-mail is private and confidential and may contain proprietary or legally privileged information. It is for the intended recipient only. If you have received this email in error, please notify the author by replying to it and then destroy it. If you are not the intended recipient you must not use, disclose, distribute, copy, print or rely on this e-mail or any attachment. Thank you

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X2Go Bug report logs - #1197 Multihead fullscreen not working with TCE client in displaymanager mode

X2Go Bug report logs - #1197
Multihead fullscreen not working with TCE client in displaymanager mode