I have an iMac G5, the last PPC model before they were release with iSight. I installed FC10 in hopes of running Ardour 2, as home recording is the only capability I care for my computer to have. I don't like Garageband so much and, even more so, I adore the economic philosophy behind linux. Anyways to get to the point:
Upon intalling Fedora the only way I could get sound out of this machine was to select _Sound by Layout (OSS)_ in Sound Preferences. I have a vague understanding of the difference in ALSA and OSS, mainly that OSS is older, and I don't mind this, so long as it works, and for playing .ogg's and .mp3's, there are no problems.
However, when I start up Ardour, and attend to the Audio Setup tab, no matter what I select for Driver, "ALSA" or "OSS", there is nothing for me to select under _Interface_, nor under _Input Device_ or _Output Device_ . When I select OSS, I receive a message: [Error]: No devices found for driver "OSS".
Perhaps there is a better sound driver for the onboard sound card that is inside this iMac but I am not highly experienced with the terminal, and so I am not even sure what kind of chipset in onboard. And I can't seem to find any documentation for old models on the apple website.
I'm not really sure where to go from here, but I am determined to keep with linux so long as I can get Ardour to function. I am going to post a copy of this on the Ardour forums also, but I was hoping that someone here may be able to help. I already owe you gratitude for reading the entirety of this post.