From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 61891] Cannot switch off Radeon 6400M with vgaswitcheroo
Date: Fri, 27 Dec 2013 23:17:59 +0000
Message-ID: <bug-61891-2300-H5EdEmOsEj@https.bugzilla.kernel.org/>
References: <bug-61891-2300@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=61891

--- Comment #18 from Alex Deucher <alexdeucher@gmail.com> ---
See drivers/gpu/drm/radeon/radeon_atpx_handler.c
radeon_atpx_set_discrete_state() is the specific function that calls the ACPI
method to power off the dGPU.

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