compositor-drm: Log failure and which backlight sysfs file we're using

diff --git a/src/compositor-drm.c b/src/compositor-drm.c
index 1485c6c..7aae70b 100644 (file)
--- a/src/compositor-drm.c
+++ b/src/compositor-drm.c
@@ -1851,8 +1851,12 @@ create_output_for_connector(struct drm_compositor *ec,
        output->backlight = backlight_init(drm_device,
                                           connector->connector_type);
        if (output->backlight) {
+               weston_log("Initialized backlight, device %s\n",
+                          output->backlight->path);
                output->base.set_backlight = drm_set_backlight;
                output->base.backlight_current = drm_get_backlight(output);
+       } else {
+               weston_log("Failed to initialize backlight\n");
        }
 
        wl_list_insert(ec->base.output_list.prev, &output->base.link);