mutter/61-mutter.rules at 5c77b640d4d4f3d05145cd75baf47c0608d3a5b9 - mutter - Subgraph Gitea

isa/mutter

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Jonas Ådahl 8989c42d40 backend/native: Add udev rule to ignore vkms devices

Virtual Kernel Mode Setting (vkms) is a virtual /dev/dri/card* device
not backed by any actual hardware. It's intended for testing purposes,
e.g. to run tests suites with a reproducable setup, or in continuous
integration pipelines.

Currently mutter don't have any tests that can run on top of vkms, but
will eventually get that. To prepare for the ability to do that, and
having said kernel module loaded without causing wierd issues with any
active session, add an udev rule that tells mutter to ignore any vkms
device.

Otherwise, when vkms is loaded, mutter would detect it, assume it's a
regular monitor, configure it as such, thus add a region of the stage
that ends up nowhere, which isn't very helpful. It might also conflict
with running actual tests that need to interact with vkms if the active
session has taken control of it.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1740>

2021-04-30 15:10:28 +02:00

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 DRIVERS=="i915", SUBSYSTEM=="drm", TAG+="mutter-device-disable-kms-modifiers"
 DRIVERS=="nouveau", SUBSYSTEM=="drm", TAG+="mutter-device-disable-kms-modifiers"
 DRIVERS=="amdgpu", SUBSYSTEM=="drm", TAG+="mutter-device-disable-kms-modifiers"
 DRIVER=="vkms", SUBSYSTEM=="platform", TAG+="mutter-device-ignore"