[mutter] kms/crtc: Log some CRTC state when updating

[Marge Bot <marge-bot src gnome org>]

commit 5dca49b6d69284972012eaf11487142a5b67d606
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Dec 15 22:45:05 2020 +0100

    kms/crtc: Log some CRTC state when updating
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>

 src/backends/native/meta-kms-crtc.c        | 7 +++++++
 src/backends/native/meta-kms-impl-device.c | 2 ++
 2 files changed, 9 insertions(+)
---
diff --git a/src/backends/native/meta-kms-crtc.c b/src/backends/native/meta-kms-crtc.c
index 4e4bd4319f..9999cf6070 100644
--- a/src/backends/native/meta-kms-crtc.c
+++ b/src/backends/native/meta-kms-crtc.c
@@ -172,6 +172,13 @@ meta_kms_crtc_read_state (MetaKmsCrtc             *crtc,
       crtc->current_state.is_active = drm_crtc->mode_valid;
     }
 
+  meta_topic (META_DEBUG_KMS,
+              "Read CRTC %u state: active: %d, mode: %s",
+              crtc->id, crtc->current_state.is_active,
+              crtc->current_state.is_drm_mode_valid
+                ? crtc->current_state.drm_mode.name
+                : "(nil)");
+
   read_gamma_state (crtc, impl_device, drm_crtc);
 }
 
diff --git a/src/backends/native/meta-kms-impl-device.c b/src/backends/native/meta-kms-impl-device.c
index c762e5ee21..8cc8a3b433 100644
--- a/src/backends/native/meta-kms-impl-device.c
+++ b/src/backends/native/meta-kms-impl-device.c
@@ -577,6 +577,8 @@ meta_kms_impl_device_update_states (MetaKmsImplDevice *impl_device)
 
   meta_assert_in_kms_impl (meta_kms_impl_get_kms (priv->impl));
 
+  meta_topic (META_DEBUG_KMS, "Updating device state for %s", priv->path);
+
   drm_resources = drmModeGetResources (priv->fd);
   if (!drm_resources)
     {