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backend/drm: Add support for hotplug_mode_update connector property

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This connector property is used by virtual graphics drivers to indicate
that a virtual display has changed its list of supported resolutions and
updated its preferred mode. In the event of a hotplug the connector is
considered to be "re-plugged" without disconnecting first. This allows
virtual displays to be resized automatically when their window size
changes.

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
This commit is contained in:
Ian Forbes 2024-11-04 15:19:13 -06:00
parent 3fdbfb0be8
commit a8611fdfb2
3 changed files with 10 additions and 0 deletions
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include/backend/drm/properties.h
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@ -22,6 +22,7 @@ struct wlr_drm_connector_props {
uint32_t panel_orientation; // not guaranteed to exist
uint32_t content_type; // not guaranteed to exist
uint32_t max_bpc; // not guaranteed to exist
uint32_t hotplug_mode_update; // not guaranteed to exist, VMs only
// atomic-modesetting only