Bug 506398

Summary:	No KAlarm sound or overlay when in fullscreen mode, e.g. streaming
Product:	[Frameworks and Libraries] kwayland	Reporter:	Firnefex <firnefex>
Component:	general	Assignee:	Martin Flöser <mgraesslin>
Status:	REPORTED ---
Severity:	normal	CC:	kdmw.629, kwin-bugs-null
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	KDEBugTriage_Kalarm_Bug 506398

Description Firnefex 2025-06-30 17:11:24 UTC

SUMMARY
For example when I bake bread there are 3 timings with different temperatures in the oven, for which this alarm would be excellent to remember me instead of burning it.
Sadly everytime I use it and watch a video fullscreen, the sound that should be played either doesn't play at all or is muted.
If I only work on desktop, the alarm works fine.

Is it a problem with Wayland or Kalarm?
Haven't tried X11 but also the Timer widget, that doens't work either.


STEPS TO REPRODUCE
1. Set alarm with sound
2. watch Youtube fullscreen
3. wait for alarm

OBSERVED RESULT
nothing

EXPECTED RESULT
sound


SOFTWARE/OS VERSIONS
Betriebssystem: openSUSE Tumbleweed 20250627
KDE-Plasma-Version: 6.4.1
KDE-Frameworks-Version: 6.15.0
Qt-Version: 6.9.1
Kernel-Version: 6.15.3-2-default (64-bit)
Grafik-Plattform: Wayland
Prozessoren: 16 × AMD Ryzen 7 7735HS with Radeon Graphics
Speicher: 32 GiB of RAM (28,1 GiB usable)
Grafikprozessor: AMD Radeon 680M
Hersteller: AZW
Produktname: SER
Systemversion: Version 1.0

Comment 1 kdmw.629 2025-07-01 07:19:10 UTC

Created attachment 182823 [details]
KDEBugTriage_Kalarm_Bug 506398

Screenshot taken when YouTube was playing a video at full screen and a alarm was set in the KClock application.

Comment 2 kdmw.629 2025-07-01 07:30:16 UTC

I am not a KDE developer. I am trying to do a KDE Bug Triage (https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging)

I do not have Kalarm installed. 

On using KClock ver 25.04.2 installed the alarm set a notification is displayed and sound is played when playing a video in full screen. Please see the attached screen shot, "KDEBugTriage_Kalarm_Bug 506398" for more details.

However on using KClock ver 25.04.2 and a countdown timer being used, instead of a alarm, a notification is not displayed, when timer is up, but a sound is played. 

The YouTube video was being played in full screen on Mozilla Firefox browser ver 140.

Comment 3 David Jarvie 2025-07-14 18:27:15 UTC

On my development system, which is less up to date than your system (KDE Frameworks 6.8.0 and Qt 6.7.2), when I play a YouTube video fullscreen in its QEMU virtual machine, KAlarm audio alarms play as expected under both X11 and Wayland. The Timer widget also works on Wayland with fullscreen YouTube.

I don't know whether the fact that the fullscreen video is running inside a virtual machine could perhaps affect what happens (although I don't see why it should), but unfortunately I don't have a suitable system to test a recent Wayland on a standalone computer. The fact that both KAlarm and Timer don't work for you does however suggest that it's a system problem and not a fault in KAlarm or Timer.

I'm reassigning this bug to kwayland (I hope that's the correct product) since it seems that it might be a Wayland issue.