linux-kernel - Re: thinkpad x60: sound problems in 4.14.0-next-20171114

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Date:   Wed, 15 Nov 2017 12:14:18 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Pavel Machek <pavel@....cz>
Cc:     kernel list <linux-kernel@...r.kernel.org>
Subject: Re: thinkpad x60: sound problems in 4.14.0-next-20171114

On Wed, 15 Nov 2017 12:11:20 +0100,
Pavel Machek wrote:
> 
> On Wed 2017-11-15 11:43:34, Takashi Iwai wrote:
> > On Wed, 15 Nov 2017 11:05:33 +0100,
> > Pavel Machek wrote:
> > > 
> > > Hi!
> > > 
> > > There are some sound problems in 4.14.0-next-20171114:
> > > 
> > > mplayer shows pictures from video, but does not play.
> > > 
> > > vlc plays video, but w/o sound
> > > 
> > > mpg123 works.
> > > 
> > > Hw is thinkpad X60. Any ideas?
> > 
> > Nothing comes to my mind for now, sorry.
> > 
> > Is it a regression, right?  There are only few changes in both
> > HD-audio and ALSA core sides, and they should be fairly harmless.
> 
> Regression: yes. Reproducible: not sure. It went away after a reboot
> :-(.

OK, let me know if it's a reproducible regression.

You can check the running sound status in
/proc/asound/card0/pcm0p/sub0/*, and see the difference between
working and non-working cases.


Takashi