Linux MCE and Myth are two seperate programs that CAN use seperate audio paths.
If you are using the computer audio out not the Spdif or optical audio out then both Myth and MCE work properly. If you use the Spdif (dolby Digital out) then MCE will properly output sound thru that port and DVDs will play peroperly, recorded TV programs will play properly also. Live TV (Myth) is still outputting the sound out the computers audio out port not the Spdif and you will have no sound when using myth for live TV.
If you are using a core/MD system you can configure the audio for the KDE desktop to use the SPDIF and everything will work properly. If you are on a network boot MD then you can configure the desktop the same way but you will have to do this every time you reload the diskless MD.
Thanks for the reply Jeff. I looked for a place in KDE to change the audio configuration so that the change would be global, but I could not find an appropriate screen or command. Could you post a little more details on how to change that in KDE environment?
Core/Hybrid: Foxconn N570SM2AA-8EKRS2H (has 2 network ports), ASUS EN6200LE, AMD-X2 4000+, 1GB DDR2-800, 500 GB SATA/300, DVD drive/writer, Sony XL1B3, BTC 9019URF, Gyro Mouse, Gyro Remote, USB-UIRT, MS Win XP Remote, ATI HDTV Wonder, HDHomeRun