Re: Scratchy sound with debian wheezy on ASUS A73B series
**cough** modinfo <modulename>
also yes the kernel source tree documents all these options.
On 2 April 2013 16:25, Chris Bannister <cbannister@slingshot.co.nz> wrote:
>
>
> [Please don't top post on this mailing list.]
>
> On Tue, Apr 02, 2013 at 11:44:34AM +1300, Joel Wirāmu Pauling wrote:
>> I have been getting this on various machines (FX890 Chipsets(AMD),
>> Sandybridge Machines - others) with all recent kernels from around 3.1
>> onwards. There must have been a commit affecting the snd_hda_intel
>> driver as this is the commonality between them.
>>
>> Trying to bisect what comit will be difficult. There are several
>> module params to try and it appears to be something to do with buffers
>> as the issue only seems to crop up at the start of audio streams. I.e
>> if I fast forward/play another stream etc then it seems to right
>> itself.
>>
>> There are several module parms you can try to resolve the issue if
>> this is the same:
>>
>>
>> parm: index:Index value for Intel HD audio interface. (array of int)
>> parm: id:ID string for Intel HD audio interface. (array of charp)
>> parm: enable:Enable Intel HD audio interface. (array of bool)
>> parm: model:Use the given board model. (array of charp)
>> parm: position_fix:DMA pointer read method.(-1 = system
>> default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).
>> (array of int)
>> parm: bdl_pos_adj:BDL position adjustment offset. (array of int)
>> parm: probe_mask:Bitmask to probe codecs (default = -1).
>> (array of int)
>> parm: probe_only:Only probing and no codec initialization.
>> (array of int)
>> parm: jackpoll_ms:Ms between polling for jack events
>> (default = 0, using unsol events only) (array of int)
>> parm: single_cmd:Use single command to communicate with
>> codecs (for debugging only). (bool)
>> parm: enable_msi:Enable Message Signaled Interrupt (MSI) (bint)
>> parm: power_save:Automatic power-saving timeout (in second,
>> 0 = disable). (xint)
>> parm: power_save_controller:Reset controller in power save
>> mode. (bool)
>> parm: align_buffer_size:Force buffer and period sizes to be
>> multiple of 128 bytes. (bint)
>> parm: snoop:Enable/disable snooping (bool)
>
>
> Interesting, thanks for the info. What file did you find these in, or is
> it a secret? It's probably in the kernel source doc package?
>
> Is there some info on how to use them? A file name/url would be good.
>
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