Colleagues,
I am not sure but think an update caused this problem. I have "dummy Sound output" (basically no audio in the PC) and tried several commands on the posts with no luck. This is the system I have (Ubuntu 18.04.1 LTS)
- Processor : Intel core i5-8400 CPU @ 2.8 GHz x 6
- Graphics : Intel HD Graphics (Coffeelake 3x8 GT2)
- GNOME : 3.28.2
- OS : 64 bits
Here are some commands
lshw -C multimedia
santi@santi-desktop:~$ sudo lshw -C multimedia
[sudo] contraseña para santi:
*-multimedia
descripción: Audio device
producto: Intel Corporation
fabricante: Intel Corporation
id físico: 1f.3
información del bus: pci@0000:00:1f.3
versión: 10
anchura: 64 bits
reloj: 33MHz
capacidades: pm msi bus_master cap_list
configuración: driver=snd_hda_intel latency=32
recursos: irq:128 memoria:a1210000-a1213fff memoria:a1000000-a10fffff
lshw -short
santi@santi-desktop:~$ sudo lshw -short
*ruta H/W Dispositivo Clase Descripción**
system To Be Filled By O.E.M. (To Be Filled
/0 bus H310M-HDV
/0/0 memory 64KiB BIOS
/0/9 memory 8GiB Memoria de sistema
/0/9/0 memory 8GiB DIMM DDR4 Síncrono 2400 MHz (0,
/0/9/1 memory DIMMProject-Id-Version: lshwReport-Ms
/0/12 memory 384KiB L1 caché
/0/13 memory 1536KiB L2 caché
/0/14 memory 9MiB L3 caché
/0/15 processor Intel(R) Core(TM) i5-8400 CPU @ 2.80G
/0/100 bridge Intel Corporation
/0/100/2 display Intel Corporation
/0/100/12 generic Intel Corporation
/0/100/14 bus Intel Corporation
/0/100/14/0 usb1 bus xHCI Host Controller
/0/100/14/0/2 input Dell USB Keyboard
/0/100/14/0/7 input 2.4G Keyboard Mouse
/0/100/14/1 usb2 bus xHCI Host Controller
/0/100/14.2 memory RAM memory
/0/100/16 communication Intel Corporation
/0/100/17 storage Intel Corporation
/0/100/1d bridge Intel Corporation
/0/100/1d/0 enp1s0 network RTL8111/8168/8411 PCI Express Gigabit
/0/100/1f bridge Intel Corporation
/0/100/1f.3 multimedia Intel Corporation
/0/100/1f.4 bus Intel Corporation
/0/100/1f.5 bus Intel Corporation
/0/1 scsi1 storage
/0/1/0.0.0 /dev/sda disk 1TB WDC WD10EZEX-08W
/0/1/0.0.0/1 /dev/sda1 volume 511MiB Windows FAT volumen
/0/1/0.0.0/2 /dev/sda2 volume 931GiB partición EXT4
lspci -nnk | grep -A2 Audio
santi@santi-desktop:~$ lspci -nnk | grep -A2 Audio
00:1f.3 Audio device [0403]: Intel Corporation Device [8086:a348] (rev 10)
Subsystem: ASRock Incorporation Device [1849:288a]
Kernel driver in use: snd_hda_intel
uname -r
santi@santi-desktop:~$ uname -r
4.15.0-42-generic
alsamixer
santi@santi-desktop:~$ alsamixer
no se puede abrir el mezclador: No existe el archivo o el directorio
(can not open the mixer: Does not exist the file or directory)
santi@santi-desktop:~$
I have an ASRock mother H310M-HDV and it says 7.1CH HD Audio(Realtek ALC887 Audio Codec) and btw could not find this codec in realtek
Can anyone help me?