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backend/drm: check for mst: in path property
Instead of checking that the path property is not 0 to determine if the connector is an MST connector, check if the path contains the mst: string. Fixes #1813
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1 changed files with 10 additions and 1 deletions
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@ -1304,8 +1304,17 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
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wl_list_insert(&wlr_conn->output.modes, &mode->wlr_mode.link);
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}
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size_t path_len;
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bool is_mst = false;
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char *path = get_drm_prop_blob(drm->fd, wlr_conn->id,
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wlr_conn->props.path, &path_len);
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if (path_len > 4 && path && strncmp(path, "mst:", 4) == 0) {
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is_mst = true;
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}
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free(path);
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wlr_conn->possible_crtc = get_possible_crtcs(drm->fd, res, drm_conn,
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wlr_conn->props.path != 0);
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is_mst);
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if (wlr_conn->possible_crtc == 0) {
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wlr_log(WLR_ERROR, "No CRTC possible for connector '%s'",
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wlr_conn->output.name);
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