I’m running Ubuntu on the XM for a software defined radio application. The audio system is excellent for this purpose (although 96 kHz sampling would be even better :-). But I notice one oddity. The stereo input jack seems to have left and right reversed. I.e., the “tip” of the TRS connector comes out as the right channel, and the “ring” as the left. This is opposite the normal convention. The output jack seems to have the same problem.
I’ve fiddled with alsamixer settings, but I don’t find any way to change the R/L assignment.
Maybe this is a well known issue on the XM, but I’ve found nothing in the documentation or forums on the subject. (The schematics are even vague on this.) Am I missing something? It’s a trivial change in my software, except I like to be able to switch easily between built-in audio and USB sound cards.
TIA
Martin