could not enable drm planes on Asahi (Mac Studio m2)

[markand]

Hello,

I'm trying to start the example wm using swc-launch on my mac studio m2 max, I get the error in drm.c:261

Could not enable DRM universal planes

According to drm_info, the driver is supposedly supporting universal planes:

$ drm_info | grep -C5 -i  plane
drmModeGetPropertyBlob: No such file or directory
drmModeGetResources: Operation not supported
Failed to retrieve information from /dev/dri/card0
Node: /dev/dri/card2
├───Driver: apple (Apple display controller DRM driver) version 1.0.0
│   ├───DRM_CLIENT_CAP_STEREO_3D supported
│   ├───DRM_CLIENT_CAP_UNIVERSAL_PLANES supported
│   ├───DRM_CLIENT_CAP_ATOMIC supported
│   ├───DRM_CLIENT_CAP_ASPECT_RATIO supported
│   ├───DRM_CLIENT_CAP_WRITEBACK_CONNECTORS supported
│   ├───DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT not supported

I'm not really used to the drm stuff so I can't really provide more information. Don't hesitate to ask me.