Re: snd_hda_intel locking up on VIA CX700M2 with VT1708A codec

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Simon Farnsworth wrote:
> Simon Farnsworth wrote:
>> Hello,
>>
>> I'm trying to work out what's going wrong with the HDA controller in our 
>> VIA CX700M2 board; there's a full bug report at 
>> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3910, but 
>> briefly, I'm seeing it lock up and refuse to DMA after long enough 
>> transferring audio data.
>>
> Following up on myself; the last command sent to the codec is always 
> 0x014f000a in my testing. Is it likely that the digital output (node 
> 0x14) is causing problems (it's not wired to anything)?

I've manually crippled the code that enables the digital output 
(commented out the following lines in patch_via.c at line 846 ish):

	if (spec->autocfg.dig_out_pin)
		spec->multiout.dig_out_nid = VT1708_DIGOUT_NID;
	if (spec->autocfg.dig_in_pin)
		spec->dig_in_nid = VT1708_DIGIN_NID;

This hasn't helped, beyond removing the last_cmd message from dmesg. 
Back to the drawing board for me.
-- 
Simon Farnsworth

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