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From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Tue, 7 Jan 2014 16:03:00 +0530
Message-ID: <CALkWK0=uTF_SakQ1oR-wv3T26wJbGWwPkkXKmCpF1O_X59T55A@mail.gmail.com>
Subject: Re: [QUERY] Power consumption on a 2013 MBP
To: Pavel Machek <pavel@ucw.cz>
Cc: LKML <linux-kernel@vger.kernel.org>
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Sender: linux-kernel-owner@vger.kernel.org

Ramkumar Ramachandra wrote:
> My system freezes if I remove modules like usbhci, ahci, ehci_hcd.

Correction: my input devices (keyboard, trackpad) depend on usbhci,
ehci_hcd, while libata and my hard disk drivers depend on ahci;
there's no way I can do without them. I'm trying to get VGA switcheroo
to work so I can switch to the onboard i915 graphics card in the hope
of saving power.
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