Bug 71421

Summary:	Qt5 apps don't work with Xephyr
Product:	xorg	Reporter:	Martin Klapetek <martin.klapetek>
Component:	Server/DDX/Xephyr	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED NOTOURBUG	QA Contact:	Xorg Project Team <xorg-team>
Severity:	major
Priority:	medium	CC:	me, nslqqq
Version:	7.7 (2012.06)
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Martin Klapetek 2013-11-09 09:23:53 UTC

Xorg-server/Xephyr version: 1.13.4
Distro: Kubuntu 13.04

When trying to run any Qt5 (or apparently GTK3) apps inside Xephyr, they don't work (as in nothing is shown). GTK2 or Qt4 works just fine as well as GLX apps (glxgears for example). Also tested on standalone X server with no DM running - Qt5 works perfectly fine there, just inside Xephyr they don't.

I've also heard that once any wm is run inside Xephyr, all apps work then, but I didn't test that and can't verify atm.

Might also be a Qt5 bug, but given there are reports[1] that GTK3 doesn't work either, I report a bug here.

I'm happy to provide any testing/info you need.

[1] https://bugs.archlinux.org/task/37705

Comment 1 Nikita Mikhailov 2013-11-09 09:28:23 UTC

I can confirm this, my specs:
Archlinux
Xorg 1.14.4
Qt 5.1.1
Gtk3 3.10.2

Comment 2 Martin Klapetek 2013-11-09 09:30:03 UTC

Oh I should mention my Qt is self-compiled 5.2~git30102013

Comment 3 Andrea Scarpino 2015-04-24 07:53:54 UTC

Fixed when using qt5-base 5.3.2

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