Bug 1979892

Summary:	xrandr: RRScreenChangeNotify is never raised under wayland when screen configuration change
Product:	[Fedora] Fedora	Reporter:	Hugo Lundin <hugo>
Component:	xorg-x11-server-Xwayland	Assignee:	Olivier Fourdan <ofourdan>
Status:	CLOSED ERRATA	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	34	CC:	mdaenzer, ofourdan
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:	xorg-x11-server-Xwayland-21.1.2-1.fc34	Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2021-07-11 01:03:51 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Hugo Lundin 2021-07-07 11:04:19 UTC

Description of problem:

The `RRScreenChangeNotify` event should be raised whenever the screen configuration of the system changes. This works as expected using GNOME with Xorg on Fedora 34. However, when using Wayland instead the event is never raised. 

Version-Release number of selected component (if applicable):

Fedora 34
The X.Org Foundation Xwayland Version 21.1.1 (12101001)
X Protocol Version 11, Revision 0
Build ID: xorg-x11-server-Xwayland 21.1.1-1.fc34


How reproducible: Always. 

Steps to Reproduce:
1. Run `xev -event randr` in a shell. 
2. Open Gnome Settings Panel > Displays and change the display arrangement. 

Actual results:

No RRScreenChangeNotify event is emitted. 

Expected results:

An RRScreenChangeNotify event to be emitted, as it is when using Xorg.

Comment 1 Michel Dänzer 2021-07-07 15:56:22 UTC

I do get RRScreenChangeNotify events from Xwayland.

What kind of display arrangement changes have you tried specifically?

Comment 2 Hugo Lundin 2021-07-07 16:25:31 UTC

I have 3 monitors, and expect it to be raised when I change the position of a monitor and press “Apply”.

Comment 3 Michel Dänzer 2021-07-07 16:59:53 UTC

Found some cases where no events would be sent, https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/711 should fix it.

Comment 4 Fedora Update System 2021-07-09 12:24:23 UTC

FEDORA-2021-7213d8442b has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-7213d8442b

Comment 5 Fedora Update System 2021-07-10 01:49:18 UTC

FEDORA-2021-7213d8442b has been pushed to the Fedora 34 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-7213d8442b`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-7213d8442b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2021-07-11 01:03:51 UTC

FEDORA-2021-7213d8442b has been pushed to the Fedora 34 stable repository.
If problem still persists, please make note of it in this bug report.