| I am having a weird problem with sound.  I'm trying to do some recordings, but the sound coming in "mic" in in the sound card come through (to the speakers and when recording) even when the volumes are turned all the way down on both alsamixer and pavucontrol: 
 Alsa mixer (PulseAudio): http://www.math.utk.edu/~finotti/tmp/am_pa.png
 
 Alsa mixer (Xonar): http://www.math.utk.edu/~finotti/tmp/am_xonar.png
 
 Pavucontrol (input): http://www.math.utk.edu/~finotti/tmp/pavucontrol.png
 
 (There is an entry of Pod X3 in pavucontrol, but I've unplugged it to test.)
 
 I get sound through the speaker just tapping at the cable.  And, again, I can record it (in Ardour).  The sound meter in pavucontrol does not move at all, but the input meter or Ardour does.  (I can slide it down to zero there.)
 
 Here is the sound card:
 
 
       Code: 
$ inxi -A
 Audio:     Card-2 C-Media CMI8788 [Oxygen HD Audio] driver: snd_oxygen
 Sound: Advanced Linux Sound Architecture v: k4.9.0-4.slh.1-aptosid-amd64
 
 
 Some more on the system:
 
 
       Code: 
$ inxi -v3
 System:    Host: debian Kernel: 4.9.0-4.slh.1-aptosid-amd64 x86_64 (64 bit gcc: 6.3.0) Console: tty 14
 Distro: aptosid 2013-01 Ἑσπερίδες - kde-full - (201305050307)
 Machine:   Device: desktop System: ASUS product: All Series
 Mobo: ASUSTeK model: Z87-PRO v: Rev 1.xx UEFI: American Megatrends v: 1707 date: 12/13/2013
 CPU:       Quad core Intel Core i7-4771 (-HT-MCP-) cache: 8192 KB
 flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 28834
 clock speeds: max: 3900 MHz 1: 2912 MHz 2: 2540 MHz 3: 1951 MHz 4: 3500 MHz 5: 3500 MHz 6: 3241 MHz
 7: 3427 MHz 8: 3457 MHz
 Graphics:  Card: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller bus-ID: 00:02.0
 Display Server: X.org 1.19.1 driver: intel tty size: 133x74 Advanced Data: N/A out of X
 Network:   Card-1: Intel Ethernet Connection I217-V driver: e1000e v: 3.2.6-k port: f080 bus-ID: 00:19.0
 IF: eth0 state: up speed: 100 Mbps duplex: full mac: e0:3f:49:a3:4c:a6
 Card-2: NetGear WNA1100 Wireless-N 150 [Atheros AR9271] driver: ath9k_htc usb-ID: 003-003
 IF: wlx4c60de719837 state: N/A mac: N/A
 Drives:    HDD Total Size: 9257.9GB (51.6% used)
 ID-1: model: WDC_WD10EALS
 ID-2: model: Samsung_SSD_840
 ID-3: model: WDC_WD20EARX
 ID-4: model: WDC_WD20EARX
 ID-5: model: WDC_WD40EZRX
 Info:      Processes: 316 Uptime: 7:21 Memory: 5988.8/15737.1MB Init: systemd runlevel: 5 Gcc sys: 6.3.0
 Client: Shell (bash 4.4.71) inxi: 2.3.5
 
 
 
       Code: 
$ lsmod | grep snd
 snd_seq_dummy           1467  2
 snd_seq                45208  7 snd_seq_dummy
 snd_oxygen             15438  3
 snd_oxygen_lib         28917  1 snd_oxygen
 snd_hda_codec          84071  0
 snd_mpu401_uart         5763  1 snd_oxygen_lib
 snd_rawmidi            17932  1 snd_mpu401_uart
 snd_hda_core           44481  1 snd_hda_codec
 snd_seq_device          3240  2 snd_seq,snd_rawmidi
 snd_hwdep               5930  1 snd_hda_codec
 snd_pcm                78327  4 snd_oxygen_lib,snd_hda_codec,snd_hda_core
 snd_timer              19353  2 snd_seq,snd_pcm
 snd                    56967  17 snd_oxygen_lib,snd_oxygen,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_pcm
 soundcore               5283  1 snd
 
 
 Any help would be greatly appreciated!
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