Pipewire Screen Capture returns no data #119

What Happened?

Trying to use the Wayland session in elementaryOS 8, you will not be able to start screen sharing either by selecting your display nor xdg-desktop-portal-pantheon in the picker. Sharing a single application is also impossible.

In programs like OBS or Discord it will simply return nothing, as if no output was chosen at all.

Steps to Reproduce

1. Invoke the Pipewire Screen Capture Portal (e.g OBS, Discord, Firefox...)
2. Select any option.
3. Hit "share"
4. See bug

Expected Behavior

Using any of the screen sharing options should allow the program in question to get a copy of your display or application output depending on your selection.

OS Version

8.x (Early Access)

Session Type

Secure Session (Wayland)

Software Version

Latest release (I have run all updates)

Log Output

No response

Hardware Info

relevant nvidia-smi output because I am running an Nvidia GPU with the proprietary drivers:

Sat Oct 5 18:37:05 2024 
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 550.107.02 Driver Version: 550.107.02 CUDA Version: 12.4 |
|-----------------------------------------+------------------------+----------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+========================+======================|
| 0 NVIDIA GeForce GTX 1060 3GB Off | 00000000:02:00.0 On | N/A |
| 37% 33C P8 8W / 120W | 970MiB / 3072MiB | 1% Default |
| | | N/A |
+-----------------------------------------+------------------------+----------------------+