From: Simon Ser Date: Mon, 17 Oct 2022 15:31:57 +0000 (+0000) Subject: Revert "drm: hide unregistered connectors from GETCONNECTOR IOCTL" X-Git-Tag: v6.6.17~6062^2^2~11 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0a3e0fb8cfee4f45f1b1f3d4d028a4519c89d577;p=platform%2Fkernel%2Flinux-rpi.git Revert "drm: hide unregistered connectors from GETCONNECTOR IOCTL" This reverts commit 981f09295687f856d5345e19c7084aca481c1395. It turns out this causes logically active but disconnected DP MST connectors to disappear from the KMS resources list, and Mutter then assumes the connector is already disabled. Later on Mutter tries to re-use the same CRTC but fails since on the kernel side it's still tied to the disconnected DP MST connector. Signed-off-by: Simon Ser Tested-by: Jonas Ådahl Reviewed-by: Lyude Paul Cc: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20221017153150.60675-1-contact@emersion.fr --- diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index 939d621..688c8af 100644 --- a/drivers/gpu/drm/drm_mode_config.c +++ b/drivers/gpu/drm/drm_mode_config.c @@ -151,9 +151,6 @@ int drm_mode_getresources(struct drm_device *dev, void *data, count = 0; connector_id = u64_to_user_ptr(card_res->connector_id_ptr); drm_for_each_connector_iter(connector, &conn_iter) { - if (connector->registration_state != DRM_CONNECTOR_REGISTERED) - continue; - /* only expose writeback connectors if userspace understands them */ if (!file_priv->writeback_connectors && (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK))