Re: [Jack-Devel] Recording with JACK on new hardware

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DateMon, 09 Jul 2012 07:24:09 +1000
From Geoff Beasley <[hidden] at laughingboyrecords dot com>
ToJacob Dawid <[hidden] at gmail dot com>
Cc[hidden] at lists dot jackaudio dot org
In-Reply-ToJacob Dawid Re: [Jack-Devel] Recording with JACK on new hardware
On 07/08/12 18:39, Jacob Dawid wrote:
> Nevermind, I rebooted my computer and retried - and it works =)
>
> 2012/7/8 Jacob Dawid <[hidden]>:
>> Hello everyone,
>>
>> I have made very good experiences with JACK in the past, even using it
>> as a foundation for my bachelor thesis. Now I bought a new laptop and
>> can't help myself: The JACK Server won't start. I guess this is due my
>> graphics having an HDMI output (two graphics cards in my laptop: AMD
>> A8 APU with Radeon 6600G and additional Radeon 7670 HD ).This is what
>> cat /proc/asound/cards says:
>>
>>   0 [Generic        ]: HDA-Intel - HD-Audio Generic
>>                        HD-Audio Generic at 0xf0344000 irq 41
>>   1 [Generic_1      ]: HDA-Intel - HD-Audio Generic
>>                        HD-Audio Generic at 0xf0340000 irq 16
>>
>> And cat /proc/asound/modules:
>>   0 snd_hda_intel
>>   1 snd_hda_intel
>>
>> JACK Error log:
>> JACK server starting in realtime mode with priority 10
>> control device hw:0
>> control device hw:0
>> audio_reservation_init
>> Acquire audio card Audio0
>> creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
>> control device hw:0
>> ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to
>> capture-only mode
>> Cannot initialize driver
>> JackServer::Open() failed with -1
>> Failed to open server
>>
>> OS:
>> Ubuntu GNU/Linux 12.04 amd64
>> JACK installed from Ubuntu ppa
>> jackdmp version 1.9.8 tmpdir /dev/shm protocol 8
>>
>> When I explicitly select "hw 0, 1" in JACK, the audio server starts,
>> but there is no sound at either of the input/outputs. I know that this
>> information may not be that helpful, I hoped that you can ask for the
>> information you need me to provide.
>>
>> Thank you very much!
>>
>> Jacob
> 
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>
try 3 periods and 512 buffers Jacob; see if that helps. also open up 
alsamixer and make sure that hw:1 isn't muted; it mayl be by default. 
are you using qjackctl to start jack?

g
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