X2Go Bug report logs - #496
x2goclient crashes X session when switching from 800x600 to fullscreen

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Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: Stefan Baur <newsgroups.mail2@stefanbaur.de>

Date: Sat, 10 May 2014 16:00:02 UTC

Severity: normal

Tags: build-win32

Merged with 510

Found in version 4.0.2.0

Full log

Report forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Sat, 10 May 2014 16:00:02 GMT) (full text, mbox, link).

Acknowledgement sent to Stefan Baur <newsgroups.mail2@stefanbaur.de>:
New Bug report received and forwarded. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Sat, 10 May 2014 16:00:02 GMT) (full text, mbox, link).

Message #5 received at submit@bugs.x2go.org (full text, mbox, reply):

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To: submit@bugs.x2go.org, Mike Gabriel <mike.gabriel@das-netzwerkteam.de>, 
 Michael DePaulo <mikedep333@gmail.com>
Subject: x2goclient crashes X session when switching from 800x600 to fullscreen
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Package: x2goclient
Version: 4.0.2.0

Hi,

this bug manifests itself on Windows.

Steps to reproduce:
Set up an 800x600 desktop session and connect.
Switch it to fullscreen using Ctrl-Alt-F once it's active.
Result: X (vcxsrv, the one shipped with x2goclient) server crashes.

We (Mike#2 and I) have verified that this occurs on Windows 7x64 and
Windows 8.1u1x64, with Debian Wheezy/Trinity and Ubuntu 14.04/MATE 1.8
on our respective servers.

Q: Mike#1, is this related to #488? Something going wrong due to the
error in the shortcut file parsing? Or are we seeing a different error here?

-Stefan

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Wed, 02 Jul 2014 03:35:02 GMT) (full text, mbox, link).

Acknowledgement sent to Michael DePaulo <mikedep333@gmail.com>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Wed, 02 Jul 2014 03:35:02 GMT) (full text, mbox, link).

Message #10 received at 496@bugs.x2go.org (full text, mbox, reply):

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Subject: Some Investigation
From: Michael DePaulo <mikedep333@gmail.com>
To: 496@bugs.x2go.org
Content-Type: text/plain; charset=UTF-8

I just tried out VcXsrv-xp 1.14.3.2 on its own, not with X2Go. I
launched an XDMCP session using "XLaunch" in "One large window" mode.

I also tried out Cygwin X11 on its own. I ran "X -query <hostname>",
which appears to be the same as what I did in XLaunch.

Results:
Whether I am at the gdm login screen, or I am logged into the gnome2
session (centos 6.5), VcXsrv does not respond to ctrl+alt+F.

Conclusion:
ctrl+alt+F must be an X2Go-specific feature, not a common Xwin feature.

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Wed, 02 Jul 2014 08:00:02 GMT) (full text, mbox, link).

Acknowledgement sent to Mike Gabriel <mike.gabriel@das-netzwerkteam.de>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Wed, 02 Jul 2014 08:00:02 GMT) (full text, mbox, link).

Message #15 received at 496@bugs.x2go.org (full text, mbox, reply):

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[Message part 1 (text/plain, inline)]
Hi Mike#2,

On  Mi 02 Jul 2014 05:32:59 CEST, Michael DePaulo wrote:

> I just tried out VcXsrv-xp 1.14.3.2 on its own, not with X2Go. I
> launched an XDMCP session using "XLaunch" in "One large window" mode.
>
> I also tried out Cygwin X11 on its own. I ran "X -query <hostname>",
> which appears to be the same as what I did in XLaunch.
>
> Results:
> Whether I am at the gdm login screen, or I am logged into the gnome2
> session (centos 6.5), VcXsrv does not respond to ctrl+alt+F.
>
> Conclusion:
> ctrl+alt+F must be an X2Go-specific feature, not a common Xwin feature.

I remember to have seen that in X2Go Client VcXsrv gets launched with  
several different options, depending on the session mode (desktop,  
rootless, windowed desktop, fullscreen desktop). I always wondered why  
that is the case.

In Python X2Go I use these VcXsrv options [1] for all kinds of session  
and I think to remember that I don't observe any troubles when  
switching fullscreen back and fourth. Though, I am not 100% sure. (You  
may want to test the latest pyhoca-gui build for win32 and cross-check  
that).

Mike#1

[1]  
http://code.x2go.org/gitweb?p=python-x2go.git;a=blob;f=x2go/defaults.py;h=c235e156b065cb5b6efbe12f431ab0aecc4de08c;hb=2f57967afb301017cbe9f0325eb28c7d9ba95be9#l236
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Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Tue, 08 Jul 2014 01:20:01 GMT) (full text, mbox, link).

Acknowledgement sent to Michael DePaulo <mikedep333@gmail.com>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Tue, 08 Jul 2014 01:20:02 GMT) (full text, mbox, link).

Message #20 received at 496@bugs.x2go.org (full text, mbox, reply):

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Subject: VcXsrv 1.15.2.0 is still affected
From: Michael DePaulo <mikedep333@gmail.com>
To: 496@bugs.x2go.org
Content-Type: text/plain; charset=UTF-8

VcXsrv 1.15.2.0 was just released (not to be confused with previous
version, 1.15.0.2).
it is still affected.

Added tag(s) build-win32. Request was from Michael DePaulo <mikedep333@gmail.com> to control@bugs.x2go.org. (Sun, 10 Aug 2014 16:25:02 GMT) (full text, mbox, link).

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Thu, 23 Oct 2014 14:25:01 GMT) (full text, mbox, link).

Acknowledgement sent to Michael DePaulo <mikedep333@gmail.com>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Thu, 23 Oct 2014 14:25:01 GMT) (full text, mbox, link).

Message #27 received at 496@bugs.x2go.org (full text, mbox, reply):

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Subject: log output
From: Michael DePaulo <mikedep333@gmail.com>
To: 496@bugs.x2go.org
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[Message part 1 (text/plain, inline)]
I've attached the x2goclient (4.0.3.0-20141021-debug) log and the
VcXsrv log of when this bug is triggered

The  X-Server command line options I am passing are shown in the .png. They are:
-multiwindow -notrayicon -clipboard -logverbose 3

-logverbose 3 does not do anything.

On IRC, user nkef posted a practically identical VcXsrv log:
http://pastebin.com/raw.php?i=5Dj2rx5y

[VCXSrv.--help.log (application/octet-stream, attachment)]
[VCXSrv.0.log (application/octet-stream, attachment)]
[x2goclient-4.0.3.0-20141021.log (application/octet-stream, attachment)]
[2014-10-23 10_19_09-Settings.png (image/png, attachment)]

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Thu, 23 Oct 2014 21:55:02 GMT) (full text, mbox, link).

Acknowledgement sent to Nikolaos Kefalas <nkefalas@gmail.com>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Thu, 23 Oct 2014 21:55:02 GMT) (full text, mbox, link).

Message #32 received at 496@bugs.x2go.org (full text, mbox, reply):

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Subject: x2goclient crashes X session when switching from window to fullscreen
From: Nikolaos Kefalas <nkefalas@gmail.com>
To: 496@bugs.x2go.org
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I tested the x2go 4.0.3.0 with VcXsrv 1.16.1.0 x64 and the same crash
occurs in Window 8.1 x64 when switching from window to fullscreen.

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Fri, 24 Oct 2014 07:25:02 GMT) (full text, mbox, link).

Acknowledgement sent to Nikolaos Kefalas <nkefalas@gmail.com>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Fri, 24 Oct 2014 07:25:02 GMT) (full text, mbox, link).

Message #37 received at 496@bugs.x2go.org (full text, mbox, reply):

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Subject: x2goclient crashes X session when switching from window to fullscreen
From: Nikolaos Kefalas <nkefalas@gmail.com>
To: 496@bugs.x2go.org
Content-Type: text/plain; charset=UTF-8

I tested also the x2go 4.0.3.0 with VcXsrv 1.16.1.0 x64 and  x32 and
the same crash occurs in Windows 7 SP1 x64 when switching from window
to fullscreen. The -logverbose 3 produced no extra info in

VCXSrv.0.log.

Merged 496 510 Request was from Michael DePaulo <mikedep333@gmail.com> to 510-quiet@bugs.x2go.org. (Tue, 03 Mar 2015 13:55:02 GMT) (full text, mbox, link).

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Tue, 29 Sep 2015 04:30:02 GMT) (full text, mbox, link).

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[Message part 1 (text/plain, inline)]
ItĀ“s happening to me also.

Latest version of x2go client (4.1.0.0) on Windows 8 x64 and server side
with a Scientific Linux 7.1.

If you switch to fullscreen the X server crashes, but if you start the
session fullscreen it seems to work.

Let me know if I can provide debug information to solve this bug.

Thank you!

[Message part 2 (text/html, inline)]

Acknowledgement sent to JoaquĆ­n Escayo <jescayo@ucm.es>:
Extra info received and forwarded to list. Copy sent to X2Go Developers <x2go-dev@lists.x2go.org>. (Mon, 22 May 2017 08:30:02 GMT) (full text, mbox, link).

Information forwarded to x2go-dev@lists.x2go.org, X2Go Developers <x2go-dev@lists.x2go.org>:
Bug#496; Package x2goclient. (Fri, 14 Jul 2017 22:35:02 GMT) (full text, mbox, link).

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