Constant clicking/popping with USB audio interface (scarlett 2i1)

Hi, I'm having a very frustrating issue with my audio. for the time being I have just decided not to use any audio (which is absurd). I have had this problem with Arch, Mint, Ubuntu, Fedora, etc...
My audio interface is a Focusrite Scarlett 2i2, and I cannot get it to stop making popping noises. Initially, it would only do it when I would open an application (regardless of whether that application relies on audio), move back and forward in my browser, etc. Anything that makes the computer work. Right now, it is popping every 1/2 second, probably because dd is cloning a hd right now. Possibly related, qjackctl has started saying it can't connect to JACK server, I'm pretty sure it worked when I first installed it (it tells me "ALSA: cannot open PCM device alsa_pcm for playback.
I have tried the following:
-ediitng asound.conf with various suggestions online for others that have had this issue - changing sample rates etc... unfortunately none of them are using the same interface so I don't think they apply to me. I don't really know what most of the things in these files mean, otherwise I would probably be able to configure it properly.
-blacklisting every other sound card in my computer
-adding a .asoundrc file as suggested here:
-tried to view information on my sound card with lsusb -v, but I don't know how to pinpoint the sound card so the list is too long for me to scroll all the way to the top (I typically have 12 to 14 usb devices plugged into this computer)
I mainly use OS X, but I would like to use Linux for music production as well; obviously this has made it impossible. Again, this has happened with every distro I have tried.
Please help, this has basically made Linux unusable for anything other than very basic internet browsing. I'm using gnome-shell and linux-rt kernel.
Last edited by jamiethemorris (2012-08-26 12:58:24)

I have precisely the same problem.
Did you find a solution or, at least, somenthing usefull?

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Constant clicking/popping with USB audio interface (scarlett 2i1)

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