- nn = udev_device_get_sysname(d);
- if (!nn)
- continue;
-
- /* Ignore internal displays: the type is encoded in
- * the sysfs name, as the second dash seperated item
- * (the first is the card name, the last the connector
- * number). We implement a whitelist of external
- * displays here, rather than a whitelist, to ensure
- * we don't block suspends too eagerly. */
- dash = strchr(nn, '-');
- if (!dash)
- continue;
-
- dash++;
- FOREACH_STRING(i, "VGA-", "DVI-I-", "DVI-D-", "DVI-A-"
- "Composite-", "SVIDEO-", "Component-",
- "DIN-", "DP-", "HDMI-A-", "HDMI-B-", "TV-") {
-
- if (startswith(dash, i)) {
- external = true;
- break;
- }
- }
- if (!external)
- continue;
-
- /* Ignore ports that are not enabled */
- enabled = udev_device_get_sysattr_value(d, "enabled");
- if (!enabled)
- continue;
- if (!streq_ptr(enabled, "enabled"))
- continue;
-