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

[Takashi Iwai]

On Mon, 27 Nov 2017 17:30:11 +0100,
Pavel Machek wrote:
> 
> 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.

This message is often superfluous, so don't take this too seriously.


> 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.

Hm, there is no code change at all in sound/*.  If it happens only in
linux-next, it must be something else...


thanks,

Takashi