[PD] RPI usb soundcards that require mmap_emul

[Antoine Villeret]

also note, that I need to launch pd from ~/.bashrc instead from
/etc/rc.local

when I lauch pd with somehting like :
su pi -C "pd loader.pd"
from /etc/rc.local the sound doesn't work fine

I don't know why but running it from ~/.bashrc with only
pd loader.pd
does work well

maybe i should have tried to run pd by root but it is often recommended to
avoid that

+
a

--
do it yourself
http://antoine.villeret.free.fr


2013/10/13 Antoine Villeret <antoine.villeret at gmail.com>

> 2013/10/11 Julian Brooks <jbeezez at gmail.com>
>
>> I tend to stick with 44.1 so it's good to know 48k could be trouble.
>>
>> Hmmm, disabling ethernet isn't an option for ssh communication.
>>
> Yes, it is a matter for me too
> So I made a udev rules that disables ethernet when the sound card is
> connected and re-enables it when the sound card is removed
>
>
>>
>> Perhaps the 'LEAVE_ME_ALONE' comment could be worth checking out?
>>
> yes, it could but I haven't the card under the hand anymore
>
>>
>> Also, what did you roll back to get audio working again?
>>
> if I remember correctly,
> with the firmware of middle september, i got cracke in audio with ethernet
> enabled, which is the same with firmware from late April
> but when I disable ethernet, USB is not working well anymore, even if
> there is no audio card, e.g. my keyboard does something very strange
> and the sound card doesn't work well
> but this could be due to the function I use to disable ethernet which
> seems to a hack and may be no more usable with recent firmware without
> making USB inusable.
>
> so I did :
> sudo rpi-update 994e46341bd190ef4ce6ee011e3f9fb8173e2bbf
> to get the firmware from april 26th
> and disable ethernet with :
>
> dhclient -r #release DCHP
> echo -n "1-1.1:1.0" | sudo tee /sys/bus/usb/drivers/smsc95xx/unbind
> #disable the cheap
>
> +
> a
>
>>
>>
>> On 10 October 2013 18:42, Antoine Villeret <antoine.villeret at gmail.com>wrote:
>>
>>> sorry, I have several cards from ESI and messed them every times !
>>> I was thinking about UGM96 which works great at 48kHz (btw I didn't try
>>> it at 96kHz because I have enough troubles and headache with 48k)
>>>
>>> But note, that I need to disable the ethernet to get input without
>>> crackles.
>>>
>>> +
>>> a
>>>
>>> --
>>> do it yourself
>>> http://antoine.villeret.free.fr
>>>
>>>
>>> 2013/10/10 Julian Brooks <jbeezez at gmail.com>
>>>
>>>> Good to know, thanks Antoine.
>>>>
>>>> What was it that you rolled back?
>>>>
>>>> BTW - can't be the UDJ card as that has no input but I think you have a
>>>> different ESI card too.
>>>>
>>>>
>>>> On 9 October 2013 21:02, Antoine Villeret <antoine.villeret at gmail.com>wrote:
>>>>
>>>>> hi,
>>>>>
>>>>> I couldn't try this and I don't know anything about mmap_emul but
>>>>>  I recently updated a Pi (in the middle september) and got crakle with
>>>>> an ESI UDJ 6 (2in/2out) which was working great before
>>>>> then I downgrade to the version of april 26 2013, and it works again
>>>>>
>>>>> +
>>>>> a
>>>>>
>>>>> --
>>>>> do it yourself
>>>>> http://antoine.villeret.free.fr
>>>>>
>>>>>
>>>>> 2013/10/9 Julian Brooks <jbeezez at gmail.com>
>>>>>
>>>>>>  Hi all,
>>>>>>
>>>>>> I'm building a fresh rpi image and after installing hexxah's
>>>>>> rpi-update and running it to update the firmware I got this message (not
>>>>>> seen before):
>>>>>>
>>>>>> "mmap_emul is set in /etc/asound.conf, disabling it as it is no
>>>>>> longer necessary
>>>>>> If you are (for instance) using an external USB soundcard that needs
>>>>>> mmap_emul,add the string LEAVE_ME_ALONE to your /etc/asound.conf as a
>>>>>> comment
>>>>>> If you don't know what an /etc/asound.conf is, don't worry about this
>>>>>> message"
>>>>>>
>>>>>> So I guess my question is:
>>>>>> How do you know if your usb soundcard requires mmap_emul?
>>>>>>
>>>>>> Also a heads up as I know a couple of people mentioned having sound
>>>>>> problems recently and perhaps this may help.
>>>>>>
>>>>>> This is most recent raspbian image btw.
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Julian
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Pd-list at iem.at mailing list
>>>>>> UNSUBSCRIBE and account-management ->
>>>>>> http://lists.puredata.info/listinfo/pd-list
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20131013/82ab208f/attachment-0001.htm>