linux-kernel - thinkpad x60: sound problems in 4.15-rc1 was Re: thinkpad x60: sound problems in 4.14.0-next-20171114

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Date:   Mon, 27 Nov 2017 17:30:11 +0100
From:   Pavel Machek <pavel@....cz>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     kernel list <linux-kernel@...r.kernel.org>
Subject: thinkpad x60: sound problems in 4.15-rc1 was Re: thinkpad x60: sound
 problems in 4.14.0-next-20171114

On Wed 2017-11-15 12:11:20, 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
> :-(.

Reappeared, 4.15-rc1.

[   40.473822] PM: suspend exit
[   40.526027] sdhci-pci 0000:15:00.2: Will use DMA mode even though
HW doesn't fully claim to support it.
[   40.569765] e1000e: eth1 NIC Link is Down
[   40.578257] sdhci-pci 0000:15:00.2: Will use DMA mode even though
HW doesn't fully claim to support it.
[   40.648476] sdhci-pci 0000:15:00.2: Will use DMA mode even though
HW doesn't fully claim to support it.
[   40.737339] sdhci-pci 0000:15:00.2: Will use DMA mode even though
HW doesn't fully claim to support it.
[   43.018955] wlan0: authenticate with 00:00:00:00:00:01
[   43.019072] wlan0: send auth to 00:00:00:00:00:01 (try 1/3)
[   43.023955] wlan0: authenticated
[   43.031721] wlan0: associate with 00:00:00:00:00:01 (try 1/3)
[   43.039733] wlan0: RX AssocResp from 00:00:00:00:00:01 (capab=0x401
status=0 aid=1)
[   43.042712] wlan0: associated
[  480.662456] snd_hda_intel 0000:00:1b.0: IRQ timing workaround is
activated for card #0. Suggest a bigger bdl_pos_adj.
pavel@amd:~$

Again, mplayer has problems, mpg123 works. This time mplayer started
playing video (w/o sound) after long delay.

Uh. huh. And now problems appeared in mpg123, too, and then went away
in mpg123 _and_ mplayer. Interesting.

I suspect some pulseaudio fun. chromium always has sound problems,
then I restart chromium and everything is ok. But something changed in
-next and 4.15-rc1, because mplayer did not have problems before.

									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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