From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 71461] monitor doesn't get detected after boot or disconnection
Date: Wed, 09 Apr 2014 20:00:22 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=71461
--- Comment #29 from Alex Deucher ---
Created attachment 131821
--> https://bugzilla.kernel.org/attachment.cgi?id=131821&action=edit
reverse hpd polarity
It sounds like your board by have the hpd pin polarity reversed (so plug events
looks like unplug and vice versa). Please attach a copy of your vbios:
(as root)
(use lspci to get the bus id)
cd /sys/bus/pci/devices/
echo 1 > rom
cat rom > /tmp/vbios.rom
echo 0 > rom
Can you also try the attached patch which reverses the hpd polarity?
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