KMS capture throws EGL_BAD_MATCH 00003009 and continuously loops creating encoders

Is there an existing issue for this?

• I have searched the existing issues

Is your issue described in the documentation?

• I have read the documentation

Is your issue present in the latest beta/pre-release?

This issue is present in the latest pre-release

Describe the Bug

Here are the reproduction steps. Step 1: Run sudo mkinitcpio -P in the terminal to regenerate the initramfs. Step 2: Reboot the computer and log into a Wayland session. Step 3: Start the Sunshine application. Step 4: Connect using a Moonlight client. Step 5: The connection times out and disconnects; Moonlight does not receive any video stream. Note: If I skip Step 1 and just reboot the computer directly, this disconnect issue still occurs with a probability of about 1 in 20. For the specific error logs and the infinite loop behavior, please refer to the online logs provided below.

Expected Behavior

Sunshine should stream video normally.

Additional Context

The provided Gist contains two files. cannot_stream.log is the Sunshine log captured when streaming fails. can_stream.log is the kernel log captured when streaming works normally.

Host Operating System

Linux

Operating System Version

CachyOS (Arch-based), kernel 7.3.0-4-cachyos

Architecture

amd64/x86_64

Package

other (not listed)

GPU Type

AMD

GPU Model

Radeon RX 590 GME (Polaris 10)

GPU Driver/Mesa Version

Mesa 26.2.5-arch3.1, LLVM 23.1.4-2

Capture Method

KMS (Linux)

Apps

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Log output

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Online logs

https://gist.github.com/aningQwQ/808e441eb7b7d743c465d0c211e48208