Messages in this thread | | | Date | Thu, 03 Jan 2013 10:19:24 +0100 | From | Takashi Iwai <> | Subject | Re: [3.6.9 -> 3.7.1 regression] sound: snd_hda_intel codec probing issue? |
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At Fri, 28 Dec 2012 15:25:40 +0100, Vincent Blut wrote: > > Hi, > > Since I updated to Linux 3.7.1, listening to some audio/video bits > frequently cause the following: > > [ 7896.166946] hda-intel: azx_get_response timeout, switching to polling > mode: last cmd=0x020c0000 > [ 7897.173444] hda-intel: No response from codec, disabling MSI: last > cmd=0x020c0000 > [ 7898.179932] hda_intel: azx_get_response timeout, switching to > single_cmd mode: last cmd=0x020c0000 > [ 7898.179983] hda-codec: out of range cmd 0:0:20:400:fffff7ff > [ 9445.034371] plugin-containe[5873]: segfault at 7f44bb95e639 ip > 00007f44e454bca0 sp 00007f44c91165f8 error 4 in > libc-2.13.so[7f44e442c000+180000] > > It seems to be a codec probing failure (?). This is really fatal because > the sound become very choppy and can't recover until I reboot. > I'll try to play with 'probe_mask' kernel parameter to see if I can > narrow the correct codec slots! > > By the way I can't reproduce this on 3.6.9, so is there something that > changed in this area in 3.7.1?
If it's new in 3.7, this could be a regression by runtime D3. Try to pass power_save_controller=0 option to snd-hda-intel module (or change it via sysfs dynamically).
thanks,
Takashi
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