[alsa-devel] [ALC1150] combined with Intel H97/Z97

[Takashi Iwai]

At Thu, 22 May 2014 13:30:50 +0200,
Arthur Borsboom wrote:
> 
> Hi Takashi,
> 
> I have found 2 other users having the same audio issues all having the
> recent Intel H97/Z97 chipset and ALC1150.
> Also my other Linux distributions and a LiveDVD (Linux Mint) give the same
> results.
> 
> My ALSA info can be found here:
> https://drive.google.com/file/d/0Bymxsci1WxB1VF9vVHVMSFpjSm8/edit?usp=sharing
> >From another user his ALSA info:
> http://www.alsa-project.org/db/?f=f9672df0b8d9150a06ca54a562ee7ef8d030d49f
> 
> Some things I have already tried such as snd-hda-module options, kernel PM
> parameters on the Arch forum:
> https://bbs.archlinux.org/viewtopic.php?pid=1418093#p1418093
> I hear some static noise, repeating, skipping, etc. To give you a better
> impression of the sound issues, I have recorded two samples.
> 
> Audacious music player:
> https://drive.google.com/file/d/0Bymxsci1WxB1RFBzSHVZTmotUWs/edit?usp=sharing
> Chrome Youtube:
> https://drive.google.com/file/d/0Bymxsci1WxB1RnBSZUEweGNuT2M/edit?usp=sharing
> 
> I also get this dmesg: "hda-intel: IRQ timing workaround is activated for
> card #0. Suggest a bigger bdl_pos_adj."

This is often harmless, so you can ignore it for now.

> Strangely enough, if the CPU load is high, for example compiling a Linux
> kernel, the sound is seems to be perfect.
> Although compiling the Linux kernel all day is a nice workaround, but not
> the solution I am looking for. :D

Did you try to pass snoop=0 option?


Takashi

> 
> On 22 May 2014 12:33, Takashi Iwai <tiwai at suse.de> wrote:
> 
> > At Wed, 21 May 2014 20:08:45 +0200,
> > Arthur Borsboom wrote:
> > >
> > > Hi guys,
> > >
> > > Another user and I are having sound issues (noise, repeating, skipping)
> > > with the ALC1150.
> > > I have the feeling it is related to the new Intel H97/Z97 chipset on our
> > > motherboard.
> > >
> > > Does anybody know about other issues in relation to this chipset?
> >
> > Could you give a bit more details of the problem?
> > Also, alsa-info.sh output is always good to have.  (Attach the
> > compressed file to avoid the max length of ML posts.)
> >
> > There can be many causes for strange playbacks.  If it's a static
> > noise, it's often from the analog loopback.  If it happens during the
> > stream playback, mostly either the missing irqs, the wrong buffer
> > position, or coherency/snooping issue.
> >
> >
> > Takashi
> >
> 
> 
> 
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