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-rw-r--r--backend/drm/drm.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index c2186932..97028dc7 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -428,6 +428,19 @@ bool enable_drm_connector(struct wlr_output *output, bool enable) {
return true;
}
+static ssize_t connector_index_from_crtc(struct wlr_drm_backend *drm,
+ struct wlr_drm_crtc *crtc) {
+ size_t i = 0;
+ struct wlr_drm_connector *conn;
+ wl_list_for_each(conn, &drm->outputs, link) {
+ if (conn->crtc == crtc) {
+ return i;
+ }
+ ++i;
+ }
+ return -1;
+}
+
static void realloc_planes(struct wlr_drm_backend *drm, const uint32_t *crtc_in,
bool *changed_outputs) {
wlr_log(WLR_DEBUG, "Reallocating planes");
@@ -477,7 +490,10 @@ static void realloc_planes(struct wlr_drm_backend *drm, const uint32_t *crtc_in,
type,
c->id);
- changed_outputs[crtc_res[i]] = true;
+ ssize_t conn_idx = connector_index_from_crtc(drm, c);
+ if (conn_idx >= 0) {
+ changed_outputs[conn_idx] = true;
+ }
if (*old) {
finish_drm_surface(&(*old)->surf);
}