KMS capture fails on dual-gpu laptop

[maximumsomething]

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 nightly release?

• This issue is present in the nightly release

Describe the Bug

On my laptop with both an integrated and dedicated GPU, sunshine fails to initialize. KMS capture fails with the error Couldn't expose some/all drm planes for card: /dev/dri/card1, where card1 refers to the dedicated GPU (which doesn't have any video outputs).

On a non-wlroots Wayland system, such as GNOME or KDE, KMS is the only capture method available, as Sunshine doesn't support standard screen capturing on Wayland, only a wlroots specific method. So this causes Sunshine to not work at all.

Expected Behavior

KMS capturing initializes with card0 (the integrated GPU).

Additional Context

I'm using KDE with Wayland. I get the same message about drm planes on X11, but sunshine eventually works with the xcb backend.

Host Operating System

Linux

Operating System Version

Debian 6.1.27-1 (2023-05-08) (bookworm) linux 6.1.0-9-amd64

Architecture

64 bit

Sunshine commit or version

1.19.1

Package

Linux - deb

GPU Type

AMD

GPU Model

AMD Ryzen 9 5900HX with Radeon Graphics, Nvidia 3050ti laptop version

GPU Driver/Mesa Version

Mesa 22.3.6, Nvidia proprietary driver 515.86.01

Capture Method (Linux Only)

KMS

Config

I verified this bug with config reset to its default.

Apps

No response

Relevant log output

[2023:05:28:13:24:27]: Info: Sunshine version: 0.19.1.f734d6684fe3191f754710c22c0094c2b461eb24
[2023:05:28:13:24:27]: Error: Couldn't find any of the following libraries: [libnvidia-fbc.so.1, libnvidia-fbc.so]
[2023:05:28:13:24:27]: Info: Found display [wayland-0]
[2023:05:28:13:24:27]: Info: Found interface: zxdg_output_manager_v1(32) version 3
[2023:05:28:13:24:27]: Info: Found interface: wl_output(62) version 4
[2023:05:28:13:24:27]: Warning: Missing Wayland wire for wlr-export-dmabuf
[2023:05:28:13:24:27]: Error: Couldn't expose some/all drm planes for card: /dev/dri/card1
[2023:05:28:13:24:27]: Error: Unable to initialize capture method
[2023:05:28:13:24:27]: Error: Platform failed to initialize
[2023:05:28:13:24:27]: Info: // Testing for available encoders, this may generate errors. You can safely ignore those errors. //
[2023:05:28:13:24:27]: Info: Trying encoder [nvenc]
[2023:05:28:13:24:28]: Info: Encoder [nvenc] failed
[2023:05:28:13:24:28]: Info: Trying encoder [vaapi]
[2023:05:28:13:24:30]: Info: Encoder [vaapi] failed
[2023:05:28:13:24:30]: Info: Trying encoder [software]
[2023:05:28:13:24:32]: Info: Encoder [software] failed
[2023:05:28:13:24:32]: Fatal: Couldn't find any working encoder
[2023:05:28:13:24:32]: Error: Video failed to find working encoder
[2023:05:28:13:24:32]: Info: Configuration UI available at [https://localhost:47990]
[2023:05:28:13:24:32]: Info: Adding avahi service Sunshine
[2023:05:28:13:24:32]: Info: Avahi service Sunshine successfully established.

[LizardByte-bot]

This issue is stale because it has been open for 90 days with no activity. Comment or remove the stale label, otherwise this will be closed in 10 days.

[maximumsomething]

Hi bot, as far as I know, this issue has not been addressed, so please don't close it :(

[ReenigneArcher]

@maximumsomething Thanks for making me laugh!

[TexDash]

I had exactly the same problem. After disabling the nvidia-drm module and reboot, it works.

A simple way to disable nvidia-drm:
Creating a file /etc/modprobe.d/blacklist-nvidia.conf that contains:

blacklist nvidia-drm
alias nvidia-drm off

Reboot and enjoy!

[maximumsomething]

That's not a good solution. I was trying to use Sunshine to play games. I need the nvidia GPU to play games.