Differentiate between empty and unrecognizable display identification

data

Test: system boots with no display identification error logs
Bug: 220045335
Change-Id: I6efa1daf523b17ea56f4a4b9e842d663804e1c15

1 files changed, 5 insertions, 0 deletions

diff --git a/libs/ui/DisplayIdentification.cpp b/libs/ui/DisplayIdentification.cpp
index 82e5427317..ed7f1930aa 100644
--- a/libs/ui/DisplayIdentification.cpp
+++ b/libs/ui/DisplayIdentification.cpp
@@ -374,6 +374,11 @@ std::optional<PnpId> getPnpId(PhysicalDisplayId displayId) {
 
 std::optional<DisplayIdentificationInfo> parseDisplayIdentificationData(
         uint8_t port, const DisplayIdentificationData& data) {
+    if (data.empty()) {
+        ALOGI("Display identification data is empty.");
+        return {};
+    }
+
     if (!isEdid(data)) {
         ALOGE("Display identification data has unknown format.");
         return {};