Hello.
I'm running Ubuntu 20.04 on a PC with i5 processor. See end of post for lshw output.
I have a SB 1570 Audigy FX SoundBlaster Audigy PCMI sound card to which I have a 5.1 speaker system connected.
The Green, (Front), black (Rear) and Orange (Centre) output ports on the sound card are connected to a mixer/amplifier that drives the 2 Front, 2 Rear & 1 Centre speakers and the woofer.
This all works fine with games etc except that the woofer isn't being driven - maybe a connection problem though the sound input is connected to the SW (red) output on the mixer/amplifier.
I also have a Nvidia HDMI graphics card for the monitor which also has 3 sound ports (output, mic & line in I think).
Sound Settings reports the sound aspect of the card as: HDMI DisplayPort 2 - GP106 High Definition Audio Controller
I do not have any sound cables attached to the sound output of the HDMI card (as it only has one output & so only supports a 2-speaker stereo setup).
When I enter
Code:
$ ps auxww|grep pulse
the output is
Code:
gdm 1130 0.0 0.1 882060 18400 ? S<sl 13:47 0:00 /usr/bin/pulseaudio --daemonize=no --log-target=journal
MyName 1782 0.0 0.1 2458744 21272 ? S<sl 13:47 0:00 /usr/bin/pulseaudio --daemonize=no --log-target=journal
MyName 5008 0.0 0.0 9032 672 pts/1 S+ 14:10 0:00 grep --color=auto pulse
which suggests that pulseaudio is interacting with the sound aspect of the HDMI card.
When I enter
Code:
$ ps auxww|grep sound
the output is:
Code:
gdm 1643 0.0 0.0 319452 8976 tty1 Sl+ 13:47 0:00 /usr/libexec/gsd-sound
MyName 2308 0.0 0.0 319472 9048 ? Ssl 13:47 0:00 /usr/libexec/gsd-sound
MyName 5043 0.0 0.0 9032 740 pts/1 S+ 14:11 0:00 grep --color=auto sound
which puzzles me as I don't know what the gsd-sound process(es) is/are.
When I enter:
I get:
Code:
[ 2.682278] input: HDA Intel PCH Front Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input17
[ 2.682336] input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input18
[ 2.682378] input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1f.3/sound/card0/input19
[ 2.682424] input: HDA Intel PCH Line Out as /devices/pci0000:00/0000:00:1f.3/sound/card0/input20
[ 2.682451] input: HDA Creative Front Mic as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input10
[ 2.682471] input: HDA Intel PCH Front Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input21
[ 2.683144] input: HDA Creative Rear Mic as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input11
[ 2.683182] input: HDA Creative Line as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input12
[ 2.683217] input: HDA Creative Line Out Front as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input13
[ 2.683248] input: HDA Creative Line Out Surround as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input14
[ 2.683417] input: HDA Creative Line Out CLFE as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input15
[ 2.683450] input: HDA Creative Front Headphone as /devices/pci0000:00/0000:00:1c.6/0000:03:00.0/sound/card2/input16
[ 4.413398] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input22
[ 4.413441] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input23
[ 4.413478] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input24
[ 4.413511] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input25
[ 4.413544] input: HDA NVidia HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input26
[ 4.413584] input: HDA NVidia HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input27
[ 4.413617] input: HDA NVidia HDMI/DP,pcm=12 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input28
The nVidia card shows up as does the Creative (SoundBlaster) card.
Should there be two sound cards detected at startup (as indicated in dmesg output) and should there be two pulseaudio processes ?
Also what is the significance of the two gsd-sound processes ?
Finally (re HDMI sound) when I use the test facility to test Sound Settings on HDMI DisplayPort 2 - GP106 High Definition Audio Controller I get sound output for a standard L/R stereo setup - even though I have no sound cable connected to the HDMI card.
Maybe none of this matters and the second pulseaudio process is not using any system resources??
===============Woofer======================
===============Woofer======================
I'd also be grateful for any suggestions as to why I have no woofer output.
Maybe relevant: the woofer is directly powered by 220V AC supply. There is a 5V output from the woofer box which I don't use - I power the mixer/amp directly from a stand-alone 5V 2.5A transformer.
Perhaps the woofer needs to be grounded by connecting the 5V output to the 5V input on the mixer/amp?
===============Woofer======================
===============Woofer======================
Many thanks for any replies.
lshw output:
Code:
$ sudo lshw -short
H/W path Device Class Description
======================================================
system MS-7996 (Default string)
/0 bus B150M PRO-VD (MS-7996)
/0/0 memory 64KiB BIOS
/0/3c memory 128KiB L1 cache
/0/3d memory 128KiB L1 cache
/0/3e memory 1MiB L2 cache
/0/3f memory 6MiB L3 cache
/0/40 processor Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz
/0/41 memory 16GiB System Memory
/0/41/0 memory 8GiB DIMM DDR4 Synchronous 2133 MHz (0.5 ns)
/0/41/1 memory [empty]
/0/41/2 memory 8GiB DIMM DDR4 Synchronous 2133 MHz (0.5 ns)
/0/41/3 memory [empty]
/0/100 bridge Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers
/0/100/1 bridge Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16)
/0/100/1/0 display GP106 [GeForce GTX 1060 6GB]
/0/100/1/0.1 multimedia GP106 High Definition Audio Controller
/0/100/8 generic Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
/0/100/14 bus 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller
/0/100/14/0 usb1 bus xHCI Host Controller
/0/100/14/0/3 input USB Optical Mouse
/0/100/14/0/4 input USB Keyboard
/0/100/14/1 usb2 bus xHCI Host Controller
/0/100/14.2 generic 100 Series/C230 Series Chipset Family Thermal Subsystem
/0/100/15 generic 100 Series/C230 Series Chipset Family Serial IO I2C Controller #0
/0/100/15.1 generic 100 Series/C230 Series Chipset Family Serial IO I2C Controller #1
/0/100/16 communication 100 Series/C230 Series Chipset Family MEI Controller #1
/0/100/17 scsi0 storage Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode]
/0/100/17/0 /dev/sda disk 240GB TOSHIBA A100
/0/100/17/0/1 /dev/sda1 volume 207GiB EXT4 volume
/0/100/17/0/2 /dev/sda2 volume 15GiB Extended partition
/0/100/17/0/2/5 /dev/sda5 volume 15GiB Linux swap volume
/0/100/17/1 /dev/sdb disk 1TB WDC WD10EZEX-08W
/0/100/17/1/1 /dev/sdb1 volume 931GiB EXT4 volume
/0/100/17/0.0.0 /dev/sdc volume 931GiB SanDisk SDSSDH31
/0/100/1c bridge 100 Series/C230 Series Chipset Family PCI Express Root Port #5
/0/100/1c/0 enp2s0 network RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
/0/100/1c.6 bridge 100 Series/C230 Series Chipset Family PCI Express Root Port #7
/0/100/1c.6/0 multimedia Sound Core3D [Sound Blaster Recon3D / Z-Series]
/0/100/1f bridge B150 Chipset LPC/eSPI Controller
/0/100/1f.2 memory Memory controller
/0/100/1f.3 multimedia 100 Series/C230 Series Chipset Family HD Audio Controller
/0/100/1f.4 bus 100 Series/C230 Series Chipset Family SMBus
/0/1 system PnP device PNP0c02
/0/2 input PnP device PNP0303
/0/3 input PnP device PNP0f03
/0/4 communication PnP device PNP0501
/0/5 system PnP device PNP0c02
/0/6 system PnP device PNP0c02
/0/7 system PnP device PNP0b00
/0/8 generic PnP device INT3f0d
/0/9 system PnP device PNP0c02
/0/a system PnP device PNP0c02
/0/b system PnP device PNP0c02
/0/c system PnP device PNP0c02
/1 power To Be Filled By O.E.M.
