[UnsteadyKen]

In article ,
NT says...
are you saying it is not possible to play audio from two different
devices onto the same 2.1 speakers with a Y-splitter audio cable?

A splitter does what it says, it splits 1 output to feed 2 devices.

You are using it backwards, combining 2 outputs to feed 1 device, and as
you have found it is not very satisfactory, results are unpredictable
and there is a possibility that you may damage either or both the PC and
TV.

What you need is a mini jack switch box so that you can choose which
device you listen to without unplugging everything, there are not many
of those available, here is one...

http://electronicsusa.com/mk1and2.html

or you could make your
http://www.instructables.com/id/How-...mm-Switch-diy/

Much easier to use an RCA phono switch like this example
http://www.tvcables.co.uk/cgi-bin/tvcables/SWITCH1.html

with suitable cables like these
http://www.belkin.com/us/p/P-AV20600/

This would allow you to feed 3 devices to your speakers and choose which
to listen to.


--
Ken O'Meara