linux-kernel - [ 073/150] drm: shut up invalid edid messages

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Message-Id: <20130226235531.760245302@linuxfoundation.org>
Date:	Tue, 26 Feb 2013 15:55:30 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Maarten Lankhorst <maarten.lankhorst@...onical.com>,
	Dave Airlie <airlied@...hat.com>
Subject: [ 073/150] drm: shut up invalid edid messages

3.8-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Maarten Lankhorst <maarten.lankhorst@...onical.com>

commit f934ec8c34b9dcefb5a4f35b0bda33bca289cbe6 upstream.

My cheapo monitor has an invalid block 1, resulting in a lot of dmesg spam every few seconds.

I get it the first time that the entire block is all 0xff..

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@...onical.com>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/drm_edid.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -357,10 +357,14 @@ drm_do_get_edid(struct drm_connector *co
 				break;
 			}
 		}
-		if (i == 4)
+
+		if (i == 4 && print_bad_edid) {
 			dev_warn(connector->dev->dev,
 			 "%s: Ignoring invalid EDID block %d.\n",
 			 drm_get_connector_name(connector), j);
+
+			connector->bad_edid_counter++;
+		}
 	}
 
 	if (valid_extensions != block[0x7e]) {


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