On Sun, 2014-11-23 at 14:54 +0100, Elimar Riesebieter wrote: > Please be careful by updates now. First remove your source.list.d > entries for experimental, apr-get remove purge 3.17 and and run a > "apt-get update && apt-get dist-upgrade". Okay, I followed the steps to revert to 3.16-4 and am back on 3.16.0-4-amd64 now. > > > > Hmm. That's strange then... something seems really wrong with this > > > > Macbook ***** :P I recently noticed that I have a slight sound problem > > > > with my speakers, too - in Mac OS + Windows I get decent sound from > > > > right and left built-in speaker; in Debian Jessie I only have the right > > > > speaker working correctly, but the left one is a lot quieter... as if > > > > it's also not working 100% with the driver... > > > > > > If there is a hardware bug you can check live distris as mentioned > > > above. But there we can't help. Success to your hardware is needed, > > > though.... > > Before forwarding the bug we must be sure your hardware works correct. > Could you test another headpone and/or speaker set meanwhile? My hardware is absolutely fine; I boot into three different OS on my Macbook: Debian Jessie, Windows & Mac OS - on Windows & Mac OS I have no problems with neither the built-in speakers of the Macbook nor my good old headphones. Forwarding this should be allright. Thank you for your help until now! Teutone