X2Go Bug report logs - #637
Qt5 apps crash at startup on Linux host

version graph

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

Reported by: André Wöbbeking <Woebbeking@web.de>

Date: Fri, 10 Oct 2014 23:10:01 UTC

Severity: important

Tags: confirmed, fixed-upstream, moreinfo

Merged with 78

Found in version 3.5.0.27

Fixed in version 3.5.99.0

Forwarded to https://github.com/ArcticaProject/nx-libs/pull/137

Full log

🔗 View this message in rfc822 format

X-Loop: owner@bugs.x2go.org
Subject: Bug#637: Qt5 apps crash at startup on Linux host
Reply-To: André Wöbbeking <Woebbeking@web.de>, 637@bugs.x2go.org
Resent-From: André Wöbbeking <Woebbeking@web.de>
Resent-To: x2go-dev@lists.x2go.org
Resent-CC: X2Go Developers <x2go-dev@lists.x2go.org>
X-Loop: owner@bugs.x2go.org
Resent-Date: Fri, 10 Oct 2014 23:10:01 +0000
Resent-Message-ID: <handler.637.B.14129824877816@bugs.x2go.org>
Resent-Sender: owner@bugs.x2go.org
X-X2Go-PR-Message: report 637
X-X2Go-PR-Package: x2goserver
X-X2Go-PR-Keywords: 
Received: via spool by submit@bugs.x2go.org id=B.14129824877816
          (code B); Fri, 10 Oct 2014 23:10:01 +0000
Received: (at submit) by bugs.x2go.org; 10 Oct 2014 23:08:07 +0000
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on
	ymir.das-netzwerkteam.de
X-Spam-Level: 
X-Spam-Status: No, score=0.0 required=5.0 tests=BAYES_40,FREEMAIL_FROM
	autolearn=ham version=3.3.2
X-Greylist: delayed 300 seconds by postgrey-1.34 at ymir.das-netzwerkteam.de; Sat, 11 Oct 2014 01:08:06 CEST
Received: from mout.web.de (mout.web.de [212.227.17.12])
	by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id B6AA33D5E4
	for <submit@bugs.x2go.org>; Sat, 11 Oct 2014 01:08:06 +0200 (CEST)
Received: from sol.localnet ([77.8.236.253]) by smtp.web.de (mrweb103) with
 ESMTPSA (Nemesis) id 0MPYJJ-1XYcTz09GD-004mTz for <submit@bugs.x2go.org>;
 Sat, 11 Oct 2014 01:03:06 +0200
From: André Wöbbeking <Woebbeking@web.de>
To: submit@bugs.x2go.org
Date: Sat, 11 Oct 2014 01:03:06 +0200
Message-ID: <1914104.loxbtOlJu8@sol>
User-Agent: KMail/4.14.2 (Linux/3.16-2-amd64; KDE/4.14.2; x86_64; git-b6b0a89; 2014-10-10)
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset="iso-8859-1"
X-Provags-ID:  V03:K0:mSTB06AbA0YAMAz5P/v88S0NYiG+QREUQJ/ldS9pZWzgLWYNxK5
 CB/qi1uzcHUUGglSTBVEdEasXqZ6Bs35rJDssGbZuGHv/YWzIn53xaGktUTR/GCrTUe92k5
 puOJijWuMmQZ70LKtKWkQfLPNykSGwmUl0VOeJd6wsl4f/AIjBVoXWIL8doGAWAESdXQ6A0
 qeYaB89f/o7sunRrwSsaA==
X-UI-Out-Filterresults: notjunk:1;

Package: x2goserver
Version: 4.0.1.18

Hi,

Any Qt 5.3 app starting on a Linux host crashes with this backtrace:

__lll_unlock_elision                elision-unlock.c:29
XIQueryVersion                      XIQueryVersion.c:47
QXcbConnection::initializeXInput2   qxcbconnection_xi2.cpp:84
QXcbConnection::QXcbConnection	    qxcbconnection.cpp:336
QXcbIntegration::QXcbIntegration    qxcbintegration.cpp:161
QXcbIntegrationPlugin::create       qxcbmain.cpp:58

These apps run fine locally.

I also get this warning before the apps crash:

xcb_randr_get_output_primary_reply_t *primary =
        xcb_randr_get_output_primary_reply(xcb_connection(), primaryCookie, 
&error);
if (!primary || error) {
    qWarning("QXcbConnection: Failed to get the primary output of the 
screen");
    free(error);
}

And xrandr prints:

"xrandr: Failed to get size of gamma for output default"

I'm using current Debian testing.


Cheers,
André

Send a report that this bug log contains spam.

X2Go Developers <owner@bugs.x2go.org>. Last modified: Mon Nov 3 07:40:43 2025; Machine Name: ymir.das-netzwerkteam.de

X2Go Bug tracking system

Debbugs is free software and licensed under the terms of the GNU Public License version 2. The current version can be obtained from https://bugs.debian.org/debbugs-source/.

Copyright © 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson, 2005-2017 Don Armstrong, and many other contributors.