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=sharin...

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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=sharin... Chrome Youtube: https://drive.google.com/file/d/0Bymxsci1WxB1RnBSZUEweGNuT2M/edit?usp=sharin...

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@suse.de wrote:

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At Wed, 21 May 2014 20:08:45 +0200, Arthur Borsboom wrote:

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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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