in dmesg :
...
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x8f000d
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x8b2000
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x8b0000
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x9f000d
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x9b2000
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x9b0000
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x870103
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x970102
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x670d61
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x670e00
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x10a90000
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0xffffffff
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0x10a90000
[17179597.340000] hda-intel: send_cmd timeout: IRS=0x1, val=0xffffffff
...


in messages :
...
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <f8bf5bea> snd_pcm_hw_constraints_complete+0x24a/0x260 [snd_pcm]  <f8bf5c6d> snd_pcm_open_substream+0x6d/0xa0 [snd_pcm]
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <f8bf5d9d> snd_pcm_open+0xfd/0x200 [snd_pcm]  <c011bde0> default_wake_function+0x0/0x10
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <f8ad5473> snd_open+0x83/0x1c0 [snd]  <c01e0f5f> kobject_get+0xf/0x20
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <f8ad53f0> snd_open+0x0/0x1c0 [snd]  <c0173dbc> chrdev_open+0xac/0x190
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <c0173d10> chrdev_open+0x0/0x190  <c0168d46> __dentry_open+0xb6/0x1e0
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <c0168f25> nameidata_to_filp+0x35/0x40  <c0168f80> do_filp_open+0x50/0x60
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <f8ad56b2> snd_card_file_remove+0x52/0xb0 [snd]  <c0168c23> get_unused_fd+0x53/0xc0
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <c0168fda> do_sys_open+0x4a/0xe0  <c01690ac> sys_open+0x1c/0x20
Jan  4 09:12:55 gondor kernel: [17184435.756000]  <c0102fbb> sysenter_past_esp+0x54/0x79
Jan  4 09:12:55 gondor kernel: [17184435.756000] snd_pcm_hw_constraints_complete failed
Jan  4 09:12:55 gondor kernel: [17184435.756000] hda_codec_setup_stream: NID=0x2, stream=0x0, channel=0, format=0x0
Jan  4 09:12:55 gondor kernel: [17184435.756000] hda-intel: send_cmd timeout: IRS=0x1, val=0x270600
Jan  4 09:12:55 gondor kernel: [17184435.772000] hda-intel: send_cmd timeout: IRS=0x1, val=0x220000
Jan  4 09:12:55 gondor kernel: [17184435.772000] hda_codec_setup_stream: NID=0x5, stream=0x0, channel=0, format=0x0
Jan  4 09:12:55 gondor kernel: [17184435.772000] hda-intel: send_cmd timeout: IRS=0x1, val=0x570600
Jan  4 09:12:55 gondor kernel: [17184435.780000] hda-intel: send_cmd timeout: IRS=0x1, val=0x520000
Jan  4 09:12:55 gondor kernel: [17184435.780000] hda_codec_setup_stream: NID=0x4, stream=0x0, channel=0, format=0x0
Jan  4 09:12:55 gondor kernel: [17184435.780000] hda-intel: send_cmd timeout: IRS=0x1, val=0x470600
Jan  4 09:12:55 gondor kernel: [17184435.792000] hda-intel: send_cmd timeout: IRS=0x1, val=0x420000
Jan  4 09:12:55 gondor kernel: [17184435.792000] hda_codec_setup_stream: NID=0x3, stream=0x0, channel=0, format=0x0
Jan  4 09:12:55 gondor kernel: [17184435.792000] hda-intel: send_cmd timeout: IRS=0x1, val=0x370600
Jan  4 09:12:55 gondor kernel: [17184435.800000] hda-intel: send_cmd timeout: IRS=0x1, val=0x320000
...