lkml.org 
[lkml]   [2012]   [Apr]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Thinkpad hda regression in 3.3
    At Fri, 13 Apr 2012 09:23:52 -0400,
    Josh Boyer wrote:
    >
    > On Fri, Apr 13, 2012 at 03:07:07PM +0200, Takashi Iwai wrote:
    > > At Fri, 13 Apr 2012 08:43:06 -0400,
    > > Josh Boyer wrote:
    > > >
    > > > Hi Takashi and Jaroslav,
    > > >
    > > > We've had a number of bugs reported about sound not working correctly on
    > > > various models of Thinkpad machines in the 3.3 kernel. I've listed them
    > > > below.
    > > >
    > > > I looked through the commits and found:
    > > >
    > > > commit 29c5fbbcfefba5225a6783683c46c39e10877703:
    > > >
    > > > ALSA: HDA: Use model=auto for Thinkpad T510
    > > >
    > > > The user reports that model=auto works fine for him. Using
    > > > model=auto bring in new features such as jack detection notification
    > > > to userspace.
    > > >
    > > > I did a local build here with that comment reverted and so far most of
    > > > the people reported their sound to be working again. The trivial revert
    > > > patch is below in case you want it.
    > >
    > > Could you get alsa-info.sh output on the non-working T510?
    > > If it's really about the built-in speaker or headphone jack, I doubt
    > > it's rahter the muted output in mixer. I see only "me too" in the bug
    > > report, which doesn't help much to diagnose the problem.
    >
    > OK, I've asked for that.
    >
    > > I've got a few positive feedbacks of T410 and T510, so basically the
    > > driver should work. But I know the problem of docking-station (see
    > > below).
    > >
    > >
    > > > It seems there are multiple models that have PCI ID 17aa:215e and using
    > > > model=auto does not work for them all. It particularly messes with
    > > > machines using a docking station for some reason.
    > > >
    > > > Aside from just reverting the above commit, do you have other thoughts
    > > > on how to fix this?
    > >
    > > 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.


    Takashi


    \
     
     \ /
      Last update: 2012-04-13 15:31    [W:0.023 / U:31.568 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site