[alsa-devel] v3.15-rc1: CORB reset timeout#1, CORBRP = 0

[Takashi Iwai]

At Wed, 16 Apr 2014 10:30:13 +0200,
Ronald wrote:
> 
> Just rebuild v3.15. The message in the subject appears to be at the
> error level. Sound plays fine. Everything seems to work as intended.
> 
> [    6.779741] snd_hda_intel 0000:00:10.1: Disabling MSI
> [    6.781978] ALSA device list:
> [    6.781980]   No soundcards found.
> [    6.785907] snd_hda_intel 0000:00:10.1: CORB reset timeout#1, CORBRP = 0
> [    7.670040] sound hdaudioC0D0: autoconfig: line_outs=1
> (0x10/0x0/0x0/0x0/0x0) type:speaker
> [    7.670046] sound hdaudioC0D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
> [    7.670049] sound hdaudioC0D0:    hp_outs=1 (0x11/0x0/0x0/0x0/0x0)
> [    7.670052] sound hdaudioC0D0:    mono: mono_out=0x0
> [    7.670055] sound hdaudioC0D0:    dig-out=0x13/0x0
> [    7.670057] sound hdaudioC0D0:    inputs:
> [    7.670060] sound hdaudioC0D0:      Mic=0x14
> [    8.730734] input: HDA Digital PCBeep as
> /devices/pci0000:00/0000:00:10.1/sound/card0/hdaudioC0D0/input10
> [    8.731256] input: HDA NVidia Front Headphone as
> /devices/pci0000:00/0000:00:10.1/sound/card0/input11
> 
> Is this reason for concern?

This comes from the commit ca460f86521ed515d17dd1314f7b95183866f681
    ALSA: hda - Fix CORB reset to follow specification
    
I guess it's a non-standard behavior of Nvidia controller.  The write
to these bits are likely ignored, so it's mostly harmless.

For avoiding the confusion, we may need to paper over the changed
reset procedure for such chips.  Could you give the specific of your
hardware, especially about this HD-audio controller chip?


thanks,

Takashi