From mboxrd@z Thu Jan  1 00:00:00 1970
From: Timo <timo.de@gmail.com>
Date: Fri, 16 Nov 2012 12:31:29 +0000
Subject: DQ77KB 100% kworker or high pitch noise
Message-Id: <50A63221.4010806@gmail.com>
List-Id: <linux-hotplug.vger.kernel.org>
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To: linux-hotplug@vger.kernel.org

Hi,

I have an Intel motherboard DQ77KB which has a 2-pin header which says 
panel_off and a fresh Ubuntu 12.10 (3.5.0-18-generic
) install and a display connected via Displayport (DP1, not eDP1). If I 
connect the header in the running system a kworker process pops up with 
100% cpu usage. If I leave the header unconnected no kworker process 
runs, which is good, but a pitch noise comes from the motherboard, 
probably from some voltage regulators.

I am no programmer, and I don't understand much about the kernel. But I 
would like to get the problem solved. If I can be any help, please let 
me know.

Kind regards
Timo