Asus N750 has an external subwoofer, but it doesn't work on ubuntu. I tried to solve the problem as it was written in
http://askubuntu.com/questions/189304/no-sound-from-external-subwoofer-sonic-master-on-an-asus-n76vm, but it doesn't work. In extra-hdmi.conf i added
[General] auto-profiles = no [Mapping analog-surround-21] device-strings = surround40:%f channel-map = front-left,front-right,lfe,lfe paths-output = analog-output analog-output-speaker priority = 7 direction = output
and reboot, the only sound device is "dummy input".
Can you help me to solve this problem?
lspci -k | grep -i -A2 "multimedia\|audio" output:
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06) Subsystem: Intel Corporation Device 2010 Kernel driver in use: snd_hda_intel -- 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 04) Subsystem: ASUSTeK Computer Inc. Device 129d Kernel driver in use: snd_hda_intel