X2Go Bug report logs - #1208
Messed up session when resuming from Published Apps mode to Fullscreen desktop mode in thinclient mode

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Package: x2gothinclient; Maintainer for x2gothinclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2gothinclient is src:x2gothinclient.

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

Date: Sat, 23 Sep 2017 20:30:01 UTC

Severity: normal

Found in version 4.1.1.0-0~1634~ubuntu16.04.1

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Message #20 received at 1208@bugs.x2go.org (full text, mbox, reply):

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Subject: Re: [X2Go-Dev] Bug#1208: Bug#1208: Messed up session when resuming
 from Published Apps mode to Fullscreen desktop mode in thinclient mode
To: uli42@gmx.de, 1208@bugs.x2go.org,
 Walid MOGHRABI <w.moghrabi@servicemagic.eu>
References: <2125077570.9122696.1506198321421.JavaMail.root@servicemagic.eu>
 <431fe9f8-57f5-9340-ab62-7406a15a57a3@baur-itcs.de>
 <CANVnVYKF0ed_kh5ULPUxQaK0SeUOknQHq_=fW7C8iraoXCgPZw@mail.gmail.com>
From: Stefan Baur <X2Go-ML-1@baur-itcs.de>
Message-ID: <99e256a8-7b83-b479-678e-cc0fedda66d0@baur-itcs.de>
Date: Mon, 25 Sep 2017 19:24:21 +0200
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[Message part 1 (text/plain, inline)]
Am 25.09.2017 um 15:24 schrieb Ulrich Sibiller:
>>> Let's say you suspended a session in "Published Apps" mode from a local desktop (might be Linux or Windows, it doesn't matter) then try to resume it from a TCE running the client in thinclient mode.
>>> This will work, you can resume the session but the display is completely broken : no desktop, no decorations, corrupted display and no widget to logoff so you're stuck there unless someone kills your session from the server.
>>>
>>> It would be better to simply block the ability to resume a Published Apps session in a mode where it just can't be done such as the thinclient mode.
>> The question is: How do we handle that?
>> --no-public-applications as a commandline option? We could hardcode that
>> into an X2Go-TCE-startup script then.
> No, that should work automatically. As long as there's a window
> manager on the client side everything will work fine.
>  And that's easily checkable by x2goclient.

Wait a minute - we are running a Display Manager in X2Go-TCE ... in the
live edition at least.
So Window decorations should be there, just no task bar.

Walid - did you change anything in your TCE setup compared to
X2Go-TCE-Live, branch "feature/openbox"?

What SHOULD happen is that X2GoClient starts up in fullscreen, but any
popup it shows (like asking for a keyfile's password, or displaying that
there's no route to host) should have window decorations. And I'd assume
that the same window manager would put window decorations around PubApp
windows once the session resumes.

(Of course, it will still be almost unusable, as there's no task bar, no
logoff button, and no menu, but I'm surprised to hear that there are no
window decorations.)

-Stefan

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