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[xubuntu] no HDMI audio on 12.04.1 with NVIDIA GTX 680

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linux-howto

http://ubuntuforums.org – Yesterday, I upgraded my old 10.04 install to 12.04.1 in order to get HDMI audio working on my GTX 680. It appears to be working, other than the actual lack of sound. The kernel thinks it found the HDMI connection: Code: [  52.666642] HDMI hot plug event: Codec=0 Pin=5 Presence_Detect=1 ELD_Valid=0 [  52.672052] HDMI status: Codec=0 Pin=5 Presence_Detect=1 ELD_Valid=0 [  52.735114] HDMI hot plug event: Codec=0 Pin=5 Presence_Detect=1 ELD_Valid=1 [  52.740082] HDMI status: Codec=0 Pin=5 Presence_Detect=1 ELD_Valid=1 [  53.512047] HDMI: detected moni (Hardware)