From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 34252] Unexpected behaviour when switching video cards with
	vga_switcheroo
Date: Tue, 10 May 2011 18:08:57 GMT
Message-ID: <201105101808.p4AI8vqu018648@demeter2.kernel.org>
References: <bug-34252-2300@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=34252





--- Comment #7 from Igor Murzov <e-mail@date.by>  2011-05-10 18:08:50 ---
Either ignored, or DIS card should be turned off, not IGD. I don't know what
exactly should happen as there is seems no official docs for vga_switcheroo,
only various tutorials and wikis. For example ubuntu tutorial
(https://help.ubuntu.com/community/HybridGraphics) says:

echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
Connects integrated graphics with outputs.

-- absolutely nothing is said if some card should be turned on / off.

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