From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Boyer Subject: Re: Thinkpad hda regression in 3.3 Date: Fri, 13 Apr 2012 09:37:21 -0400 Message-ID: <20120413133721.GE25425@zod.bos.redhat.com> References: <20120413124306.GC25425@zod.bos.redhat.com> <20120413132352.GD25425@zod.bos.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Takashi Iwai Cc: Jaroslav Kysela , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, kernel-team@fedoraproject.org List-Id: alsa-devel@alsa-project.org On Fri, Apr 13, 2012 at 03:29:41PM +0200, Takashi Iwai wrote: > At Fri, 13 Apr 2012 09:23:52 -0400, > Josh Boyer wrote: > > > The problem regarding the docking station is basically a BIOS issue. > > > ThinkPad BIOS doesn't expose the pins for docking stations at all. > > > We have already a workaround for X200, and similar others would be > > > needed for T410, T420, etc. > > > > > > For testing, you don't need even patch the driver. When the driver is > > > built with CONFIG_SND_HDA_PATCH_LOADER=y, create a file containing the > > > below as /lib/firmware/alsa-tp-dock: > > > > > > ================================================================ > > > [codec] > > > 0x14f15069 0x17aa21a4 0 > > > > > > [pincfg] > > > 0x1a 0x21a11000 > > > 0x1c 0x23014250 > > > ================================================================ > > > > The above is for the X200 docking station, correct? So it should work > > with an x201 thinkpad in an x200 dock. > > It's for T410/T510 dock. But X201 uses the same codec chip, so this > could be used, too. Just give it a try. OK. I've asked a reporter to test this out. We'll get back to you. josh