Messages in this thread | | | Date | Fri, 13 Apr 2012 15:29:41 +0200 | From | Takashi Iwai <> | Subject | Re: Thinkpad hda regression in 3.3 |
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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
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