From 887fc651929857ef5eee5058f4fb9a162f48a502 Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Tue, 1 Apr 2008 23:20:46 +0000
Subject: display a warning for unrecognised EDID flags in verbose mode

---
 monitor-parse-edid | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/monitor-parse-edid b/monitor-parse-edid
index f5bb960..4d40970 100755
--- a/monitor-parse-edid
+++ b/monitor-parse-edid
@@ -171,7 +171,7 @@ sub check_parsed_edid {
 }
 
 sub parse_edid {
-    my ($raw_edid) = @_;
+    my ($raw_edid, $verbose) = @_;
 
     my %edid;
     my @vals = unpack(join('', map { $_->[0] } @edid_info), $raw_edid);
@@ -273,7 +273,8 @@ sub parse_edid {
 		    } elsif ($flag == 0xff) {
 			push @{$edid{serial_number2}}, unpack('A13', $vv);
 		    } else {
-			#warn "parse_edid: unknown flag $flag\n";
+		       $verbose && $vv ne "\0" x 13 && $vv ne " " x 13 and
+			 warn "parse_edid: unknown flag $flag\n";
 		    }
 		}
 	    }
@@ -470,7 +471,7 @@ sub error {
 
 length($raw_edid) == 128 || length($raw_edid) == 256 or error("bad edid");
 
-my $edid = parse_edid($raw_edid);
+my $edid = parse_edid($raw_edid, $verbose);
 if (my $err = check_parsed_edid($edid)) {
     die "$err\n";
 }
-- 
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