obs wayland screeb capture not working warning: [pipewire] Failed to start screencast, denied or cancelled by user

[Bednar87]

Operating System Info

Other

Other OS

Arch Linux

OBS Studio Version

27.1.3

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/kOlejKNWLiHMrIOz

OBS Studio Crash Log URL

No response

Expected Behavior

Screen capture on wayland should work with pipewire

Current Behavior

I only get a black screen + the below in the log: warning: [pipewire] Failed to start screencast, denied or cancelled by user

I am not prompted by obs so select windows or screens to share; I certainly am not denying or cancelling anything

Steps to Reproduce

1. Launch obs-studio
2. Add Screen Capture (pipewire) source
3. Black screen, no prompts, nothing
   ...

Anything else we should know?

pipewire
Compiled with libpipewire 0.3.43
Linked with libpipewire 0.3.43

I have xdg-desktop-portal as well as the KDE implementations installed.

Operating System: Arch Linux
KDE Plasma Version: 5.23.90
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
Kernel Version: 5.13.0-1-amd-staging-drm-next-git-01870-g8e74e0923ed4 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 3700X 8-Core Processor
Memory: 31.3 GiB of RAM
Graphics Processor: AMD Radeon RX 5700 XT

[Fenrirthviti]

The log provided shows source: 'Screen Capture (XSHM)' (xshm_input)

Can you provide a log file that shows you adding the source you are having issues with?

[Bednar87]

apologies, this log should be correct now https://obsproject.com/logs/LCc2DxGjq3Tf-SJh

[Bednar87]

I also see this in the journal:

1/14/22 10:07 PM xdg-desktop-portal-kde QQmlApplicationEngine failed to load component 1/14/22 10:07 PM xdg-desktop-portal-kde qrc:/ScreenChooserDialog.qml:13:1: Type PWD.SystemDialog unavailable 1/14/22 10:07 PM xdg-desktop-portal-kde file:///usr/lib/qt/qml/org/kde/plasma/workspace/dialogs/SystemDialog.qml:132:9: MobileSystemDialog is not a type 1/14/22 10:07 PM xdg-desktop-portal-kde QObject::connect: Cannot connect (nullptr)::accept() to ScreenChooserDialog::accept() 1/14/22 10:07 PM xdg-desktop-portal-kde QObject::connect: Cannot connect (nullptr)::reject() to ScreenChooserDialog::reject() 1/14/22 10:07 PM xdg-desktop-portal-kde QObject::connect: Cannot connect (nullptr)::clearSelection() to ScreenChooserDialog::clearSelection() 1/14/22 10:07 PM xdg-desktop-portal-kde Failed to load dialog, cannot exec

and this:

1/14/22 10:07 PM pipewire pw.node: (OBS-123) -> change driver (OBS-123 -> alsa_input.usb-Microsoft_Microsoft___LifeCam_Studio_TM_-02.mono-fallback-53) 1/14/22 10:07 PM pipewire pw.context: 0x55d3fa1e96c0: driver 0x55d3fa38e9d0: follower 0x55d3fb39ee20 OBS: active:1 1/14/22 10:07 PM pipewire pw.context: 0x55d3fa1e96c0: follower 0x55d3fb39ee20: active:1 'OBS' 1/14/22 10:07 PM pipewire pw.context: 0x55d3fa1e96c0: follower 0x55d3fa2e8b60: active:1 'OBS' 1/14/22 10:07 PM pipewire pw.node: (OBS-123) latency:0/0 -> 1200/48000 1/14/22 10:07 PM pipewire pw.context: 0x55d3fa1e96c0: driver 0x55d3fa38e9d0: follower 0x55d3fb39ee20 OBS: active:1 1/14/22 10:07 PM pipewire pw.context: 0x55d3fa1e96c0: follower 0x55d3fb39ee20: active:1 'OBS' 1/14/22 10:07 PM pipewire pw.context: 0x55d3fa1e96c0: follower 0x55d3fa2e8b60: active:1 'OBS' 1/14/22 10:07 PM pipewire pw.node: 0x55d3fb39ee20: (OBS) suspended -> running ((null)) 1/14/22 10:07 PM pipewire pw.node: (OBS-123) suspended -> running

no idea if this is useful though

[kkartaltepe]

Your desktop-portal implementation is busted or incorrectly configured. Please use the Discord server or the forums for technical support.

[mthw0]

@Bednar87 Have you reported this to KDE? (https://bugs.kde.org/) I think I have this issue too, and I would report it if you didn't.

[Bednar87]

@mthw0 no, but I found an existing bug report: https://bugs.kde.org/show_bug.cgi?id=448423

I am rebuilding plasma-workspace with the proposed patch to see if it works

[mthw0]

I've found it too, downgrading xdg-desktop-portal-kde also fixes the issue.

[Bednar87]

this mr fixes the issue for me on arch linux 5.24 beta

https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/1368

[kkartaltepe]

As originally mentioned this is not the appropriate place to figure out how to configure xdg-desktop-portals you can use our support channels if you want help like that. And please do not necro old issues.