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From: Jean Delvare <khali@linux-fr.org>
To: lm-sensors@vger.kernel.org
Subject: [lm-sensors] [PATCH] Don't probe EDID addresses on graphics card adapters
Date: Wed, 04 Apr 2012 09:32:53 +0000	[thread overview]
Message-ID: <20120404113253.533a4c19@endymion.delvare> (raw)

Avoid probing EDID addresses (0x50-0x57) on graphics card adapters.
We had one report that it caused trouble:
http://lists.lm-sensors.org/pipermail/lm-sensors/2012-April/035847.html
Even though it's not yet clear what happened, let's play it safe.

This closes ticket #2386.
---
 prog/detect/sensors-detect |    3 +++
 1 file changed, 3 insertions(+)

--- lm-sensors.orig/prog/detect/sensors-detect	2012-03-29 08:33:21.000000000 +0200
+++ lm-sensors/prog/detect/sensors-detect	2012-04-02 18:37:31.948591233 +0200
@@ -3660,6 +3660,9 @@ sub scan_i2c_adapter
 		$input = <STDIN>;
 		chomp($input);
 		@not_to_scan = parse_not_to_scan(0x03, 0x77, $input);
+	} elsif (($class & 0xff00) = 0x0300) {
+		# Skip EDID addresses by default on graphics adapters
+		@not_to_scan = parse_not_to_scan(0x03, 0x77, "0x50-0x57");
 	}
 
 	open(local *FILE, "$dev_i2c$adapter_nr") or


-- 
Jean Delvare

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             reply	other threads:[~2012-04-04  9:32 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-04  9:32 Jean Delvare [this message]
2012-04-04 13:54 ` [lm-sensors] [PATCH] Don't probe EDID addresses on graphics card adapters Guenter Roeck

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