For a few days now, I can get no sound out of my Dell laptop on Ubuntu 18.04.4. The 'Sounds' settings only shop the option 'Dummy output'. I have checked with headsets, it is the same. I have a Windows on my laptop in dual-boot, and the sound is just fine there, so I believe it is not the fault of the hardware.  In the last few days I've been Googling all possible ways to fix this issue, and I've found the followings:   Disabling the sound in BIOS the re-enabling it does nothing Force-reloading alsa in various ways (e.g. pulseaudio --kill; sleep 2s; sudo alsa force-reload ; pulseaudio --start) does nothing Reinstalling all soundbases e.g. with sudo apt-get --purge remove linux-sound-base alsa-base alsa-utils &amp;&amp; sudo apt-get install linux-sound-base alsa-base alsa-utils also with sudo apt install --reinstall pulseaudio pulseaudio-module-x11 does nothing   For the troubleshooting :   The command lsmod | grep snd_hda_intel shows that I indeed have the intel module:   snd_intel_nhlt         20480  2 snd_hda_intel,snd_soc_skl snd_hda_codec         131072  5 snd_hda_codec_generic,snd_hda_intel,snd_hda_codec_realtek,snd_soc_hdac_hda,snd_soc_skl_hda_dsp snd_hda_core           90112  11 snd_hda_codec_generic,snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_hda_codec_realtek,snd_sof_intel_hda_common,snd_soc_hdac_hdmi,snd_soc_hdac_hda,snd_soc_skl,snd_sof_intel_hda,snd_soc_skl_hda_dsp snd_pcm               102400  10 snd_hda_intel,snd_hda_ext_core,snd_hda_codec,snd_sof,snd_sof_intel_hda_common,snd_soc_hdac_hdmi,snd_soc_core,snd_soc_skl,snd_hda_core,snd_pcm_dmaengine snd                    86016  12 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_compress,snd_soc_core,snd_pcm,snd_rawmidi````  lspci -nnk shows nothing related to audio aplay -l and pacmd list-cards both fail to find any sound card The sudo lshw -c sound command finds the card alright:   multimedia description: Multimedia audio controller product: Cannon Lake PCH cAVS vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 version: 10 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=snd_soc_skl latency=32 resources: irq:17 memory:ed318000-ed31bfff memory:ed100000-ed1fffff     Now I also tried to open alsamixer with sudo alsamixer, however I get the result cannot open mixer: No such file or directory. I do not know if this is a normal error message or is it because I've been messing up a few things during trying everything in the last few days.   Maybe somebody can help me out how to get my Ubuntu to find my sound card again?
34175
I've been using Ubuntu 18.04 on my Thinkpad X1 Carbon 7th gen for some time now with the audio working just fine, but after running some updates yesterday it seems like the audio card has stopped working when I rebooted this morning, could this be related to each other?  dmsg output:  [   32.624585] skl_hda_dsp_generic skl_hda_dsp_generic: Unsupported HDAudio/iDisp configuration found [   32.624590] skl_hda_dsp_generic: probe of skl_hda_dsp_generic failed with error -22   output from /var/log/apt/history.log:  Start-Date: 2020-03-17  09:30:06 Commandline: aptdaemon role='role-commit-packages' sender=':1.214' Install: linux-image-5.3.0-42-generic:amd64 (5.3.0-42.34~18.04.1, automatic), linux-headers-5.3.0-42-generic:amd64 (5.3.0-42.34~18.04.1, automatic), linux-modules-extra-5.3.0-42-generic:amd64 (5.3.0-42.34~18.04.1, automatic), linux-headers-5.3.0-42:amd64 (5.3.0-42.34~18.04.1, automatic), linux-modules-5.3.0-42-generic:amd64 (5.3.0-42.34~18.04.1, automatic) Upgrade: gir1.2-nm-1.0:amd64 (1.10.6-2ubuntu1.2, 1.10.6-2ubuntu1.4), linux-libc-dev:amd64 (4.15.0-88.88, 4.15.0-91.92), linux-headers-generic-hwe-18.04:amd64 (5.3.0.40.97, 5.3.0.42.99), libnm0:amd64 (1.10.6-2ubuntu1.2, 1.10.6-2ubuntu1.4), network-manager:amd64 (1.10.6-2ubuntu1.2, 1.10.6-2ubuntu1.4), linux-image-generic-hwe-18.04:amd64 (5.3.0.40.97, 5.3.0.42.99), linux-signed-generic-hwe-18.04:amd64 (5.3.0.40.97, 5.3.0.42.99), linux-generic-hwe-18.04:amd64 (5.3.0.40.97, 5.3.0.42.99), network-manager-config-connectivity-ubuntu:amd64 (1.10.6-2ubuntu1.2, 1.10.6-2ubuntu1.4), code:amd64 (1.42.1-1581432938, 1.43.0-1583783132), linux-firmware:amd64 (1.173.15, 1.173.16), docker-ce:amd64 (5:19.03.7~3-0~ubuntu-bionic, 5:19.03.8~3-0~ubuntu-bionic), docker-ce-cli:amd64 (5:19.03.7~3-0~ubuntu-bionic, 5:19.03.8~3-0~ubuntu-bionic) End-Date: 2020-03-17  09:31:51  Start-Date: 2020-03-18  06:58:27 Commandline: /usr/bin/unattended-upgrade Remove: linux-headers-5.3.0-28:amd64 (5.3.0-28.30~18.04.1), linux-headers-5.3.0-28-generic:amd64 (5.3.0-28.30~18.04.1) End-Date: 2020-03-18  06:58:27  Start-Date: 2020-03-18  06:58:30 Commandline: /usr/bin/unattended-upgrade Remove: linux-modules-extra-5.3.0-28-generic:amd64 (5.3.0-28.30~18.04.1) End-Date: 2020-03-18  06:58:31  Start-Date: 2020-03-18  06:58:36 Commandline: /usr/bin/unattended-upgrade Remove: linux-modules-5.3.0-28-generic:amd64 (5.3.0-28.30~18.04.1), linux-image-5.3.0-28-generic:amd64 (5.3.0-28.30~18.04.1) End-Date: 2020-03-18  06:58:40  Start-Date: 2020-03-18  06:58:48 Commandline: /usr/bin/unattended-upgrade Upgrade: libcephfs2:amd64 (12.2.12-0ubuntu0.18.04.4, 12.2.12-0ubuntu0.18.04.5) End-Date: 2020-03-18  06:58:49  Start-Date: 2020-03-18  06:58:53 Commandline: /usr/bin/unattended-upgrade Upgrade: libicu60:amd64 (60.2-3ubuntu3, 60.2-3ubuntu3.1) End-Date: 2020-03-18  06:58:55  Start-Date: 2020-03-18  06:59:01 Commandline: /usr/bin/unattended-upgrade Upgrade: librados2:amd64 (12.2.12-0ubuntu0.18.04.4, 12.2.12-0ubuntu0.18.04.5) End-Date: 2020-03-18  06:59:02  Start-Date: 2020-03-18  06:59:08 Commandline: /usr/bin/unattended-upgrade Upgrade: python3-apport:amd64 (2.20.9-0ubuntu7.11, 2.20.9-0ubuntu7.12) End-Date: 2020-03-18  06:59:09  Start-Date: 2020-03-18  06:59:14 Commandline: /usr/bin/unattended-upgrade Upgrade: python3-problem-report:amd64 (2.20.9-0ubuntu7.11, 2.20.9-0ubuntu7.12) End-Date: 2020-03-18  06:59:15  Start-Date: 2020-03-18  06:59:18 Commandline: /usr/bin/unattended-upgrade Upgrade: apport:amd64 (2.20.9-0ubuntu7.11, 2.20.9-0ubuntu7.12) End-Date: 2020-03-18  06:59:21  Start-Date: 2020-03-18  06:59:24 Commandline: /usr/bin/unattended-upgrade Upgrade: apport-gtk:amd64 (2.20.9-0ubuntu7.11, 2.20.9-0ubuntu7.12) End-Date: 2020-03-18  06:59:25
86843
When creating either an Aggregate Device or a Multi-Output Device in Audio MIDI Setup and setting it as the default audio output device, the volume control is greyed out and locked at maximum intensity. Why is that and how can it be bypassed?
69213
After a bit of messing around including doing this:  sudo add-apt-repository ppa:ubuntu-audio-dev/ppa; sudo apt-get update;sudo apt-get dist-upgrade  sudo apt-get install pavucontrol linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-`uname -r` libasound2   sudo apt-get -y --reinstall install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop linux-image-  uname -r   libasound2; killall pulseaudio; rm -r ~/.pulse*; sudo usermod -aG   cat /etc/group | grep -e '^pulse:' -e '^audio:' -e '^pulse-access:' -e '^pulse-rt:' -e '^video:' | awk -F: '{print $1}' | tr '\n' ',' | sed 's:,$::g'  whoami   no sound works anymore. The sound controller that is normally in the top right of the screen is now also gone.
71163
I am running kernel v4.13.0-36-generic on Ubuntu 17.10 on an HP Omen 15. I have a hybrid NVIDIA Optimus graphics card. I dual-boot Windows 10, which can play audio from the same external monitor over the same HDMI cable I am attempting to use in Ubuntu. I can see video on my external monitor in Ubuntu.  I have tried , but in the former no HDMI audio device appears, and in the latter all HDMI devices show up as unplugged.  I have had the most success using the proprietary nvidia-384 driver installed via the Additional Drivers tab of Software &amp; Updates. Using this driver I am able to see video on my external monitor, play audio through my laptop speakers, and boot reliably.  I have tried using nvidia-387 and nvidia-390 from  with , but I can't even boot or see video on my external monitor reliably using these drivers. I observed that /etc/bumblebee/xorg.conf.nouveau and /etc/bumblebee/xorg.conf.nvidia detected my GeForce GTX 1050 Ti as a discrete graphics card, which I believe is incorrect, but am unsure how to override these settings to indicate that my graphics card is a hybrid.    I installed , but after rebooting was stuck in a boot loop, so I ran sudo nvidia-uninstall.      I disabled Secure Boot.  I tried using kernel v4.15.4, but only found it even more difficult to boot reliably.  I tried . I do not know how to switch from hybrid to dedicated graphics mode as the author of that solution suggests though, so that may be why it didn't work for me.  $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC295 Analog [ALC295 Analog]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]   Subdevices: 1/1   Subdevice #0: subdevice #0  $ lspci 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05) 00:01.0 PCI bridge: Intel Corporation Skylake PCIe Controller (x16) (rev 05) 00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04) 00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 05) 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31) 00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31) 00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA Controller [AHCI mode] (rev 31) 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #1 (rev f1) 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #5 (rev f1) 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #6 (rev f1) 00:1c.6 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #7 (rev f1) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31) 00:1f.3 Audio device: Intel Corporation Device a171 (rev 31) 00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31) 01:00.0 3D controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1) 03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS522A PCI Express Card Reader (rev 01) 04:00.0 Network controller: Intel Corporation Wireless 7265 (rev 61) 05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)   A big thank you to anyone who made it to this point. Any suggestions would be greatly appreciated.
90865
I updated to Ubuntu 15.04 from Ubuntu 14.10 a few days ago, and now my Logitech G230 headphones don't receive any sound. How can I fix this? PulseAudio Volume Control detects my headphones, and says they're working, but no sound comes through.  EDIT: Using alsamixer worked at first, but now it doesn't, and I get frequent bursts of static through my headphones now.
94325
I had a problem with sound after I connected a HDMI-cable. I followed the steps here:   the sound worked perfect, but the sound-volume indicator disappeared
35507
Periodically, my MacBook Pro 17" stops recognizing my headphones. No amount of unplugging and replugging seems to help. The sound settings never show headphones as an output device. How can I fix this? The only thing I can find elsewhere on the Internet are people saying, "Reboot!" This works, but is impractical and annoying.
32328
I have a headphone jack with a broken sensor. The headphones are normally supposed to turn on when they're plugged in. Because the jack is broken, however, my computer only detects that my headphones are plugged in when I push or tilt the plug, and that's the only time I can get sound out of them. Therefore I'd like to control this feature manually and force the sound to come out of my headphones all the time.   I've found registry keys that can be edited for Windows 7 and 8 which give this functionality, but none for Windows 10.  Realtek's HD Audio Manager has a "Disable Front Panel Jack Detection" option which gives this functionality, but Realtek's skin for Dell motherboards, which my computer has, does not include this option.  So I was thinking: Perhaps this Dell skin is only cosmetic. If I could find out which registry key is changed when someone else checks the "Disable Front Panel Jack Detection" box in their Realtek Audio Manager, I could edit that same key on my computer, and achieve the same functionality.  Does anyone know which key this is?
24125
I was listening to music, and my sound suddenly went dead in all my applications. I'm using Ubuntu 12.04, which uses pulseaudio, so I tried sudo /etc/init.d/pulseaudio restart, but nothing happened. According to lsof | grep pcm, nothing is using the soundcard at the moment, although I'm not entirely sure if  is applicable.   Is there a way another way to restart Ubuntu 12.04's sound system from the command line without rebooting the system?
89907
I am using Dell Alienware M14X. I have installed Ubuntu 14.04 on my laptop. The problem that I am facing is that the audio plays only through speakers all the time even I though I plug in my headphone.  When I go to sound settings, it is showing me headphones in the "play sound through" which means that my system is able to detect the headphones; But just the audio doesn't play through the headphones, instead it still plays through speaker.
104834
Last night I decided to upgrade my system to the latest version of Xubuntu, 13.10. The process went fine, but now I'm facing this strange issue. There is no sound settings available in the settings manager window and the volume indicator looks like when the volume is muted, clicking the indicator being broken as well. :    I tried to do a alsa force-reload followed by a restart of the computer, but didn't help. Any thoughts ?  l.e. After some digging I found out that the volume control exists, so this must be a volume indicator issue.
70962
My sounds suddenly stopped playing on Ubuntu 13.04 64bit. I can only see Dummy output device in the Sound Settings and no sound is played during testing.  I can get the sound temporarily working by killing one of the strange processes, but I have to repeat the same after reboot  jan@jan-HP-Desktop:~$ ps -ef|grep pulseaudio 112       1405     1  0 09:38 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog 112       2132  1405  0 09:38 ?        00:00:00 /usr/lib/pulseaudio/pulse/gconf-helper jan       2575     1  0 09:39 ?        00:00:00 /usr/bin/pulseaudio --start --log-target=syslog jan       2597  2575  0 09:39 ?        00:00:00 /usr/lib/pulseaudio/pulse/gconf-helper jan       3160  2975  0 09:40 pts/2    00:00:00 grep --color=auto pulseaudio  jan@jan-HP-Desktop:~$ sudo kill 1405   Is there a permanent solution for this problem?
98671
My mini-jack input is broken, so my computer(HP pavilion dv6 Notebook) thinks there is headphones plugged in at all times. If I physically press lightly on the headphone intput location, speakers start working again. Even if headphones are plugged in, the cable needs to have tension in a certain angle to work. This is extremely annoying! Fixing it wud cost more than the computer is worth, and I can't afford a new one worth buying. I'm running Windows 7 with IDT audio. In all different options I've found, the speakers and headphones seems to have the same muscle. If I deactivate one, i deactivate the other. In fact, I cant find different options for them at all. Does anyone know a way I can force my computer to ONLY play through the speakers, even if headphones are detected? Not both at the same time, ONLY speakers!
34940
I have a PC that is hooked up to my HDTV (via a long hdmi cable) and to a monitor, which is in another room. I have speakers directly plugged to the PC audio out. The PC is next to the monitor and speakers.   I am not sure but I think Windows can play sound on only 1 audio device at a time. And I can only set 1 device as the default output. I can get sound on the TV or speaker depending on which device I set to default. But I would have to do this every time I switch between using my TV or my monitor!   Is there some way to configure such that sound plays through the TV if the TV is on, else it plays in the speakers? If this is not possible, then the next best alternative would be to get the sound to play on both the devices at the same time.
83945
At each reboot, PulseAudio sets a sink (in my case, "HDMI Audio Output") as the default.  So, at each reboot, I don't hear any sound, and need to reconfigure the default sink each time to "Analog Output".  How do I remove/disable a specific sink such as HDMI, or set a default sink that overrides the existing sink?
121469
I recently upgraded to Ubuntu 20.04 lts from 18.04 lts. After reboot audio is not working. I tried to reinstall pulseaudio and alsa but still not working. sudo apt-get install --reinstall alsa-base pulseaudio sudo alsa force-reload still not working. output  └─▶ inxi -SMA System:    Host: Wizard Kernel: 5.4.0-26-generic x86_64 bits: 64 Desktop: Gnome 3.36.1 Distro: Ubuntu 20.04 LTS (Focal Fossa)  Machine:   Type: Portable System: Dell product: Vostro 2520 v: N/A serial: &lt;superuser/root required&gt;             Mobo: Dell model: 0V1NDP v: A11 serial: &lt;superuser/root required&gt; BIOS: Dell v: A11 date: 02/24/2014  Audio:     Device-1: Intel 7 Series/C216 Family High Definition Audio driver: snd_hda_intel             Sound Server: ALSA v: k5.4.0-26-generic     output └─▶ lspci  00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 00:16.0 Communication controller: Intel Corporation 7 Series/C216 Chipset Family MEI Controller #1 (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C216 Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.3 PCI bridge: Intel Corporation 7 Series/C216 Chipset Family PCI Express Root Port 4 (rev c4) 00:1c.5 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 6 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C216 Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation HM75 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C216 Chipset Family SMBus Controller (rev 04) 07:00.0 Network controller: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n (rev 01) 09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)
12057
To switch to HDMI audio output (of monitor) and back to normal audio output from system audio jack (for headphones, as my monitor doesn't have audio out), I find myself opening up sound preferences and selecting the right channel everytime. Is there any way I can create a toggle button in the panel or assign some shortcut key to toggle since I do the switching so often.   :aplay -l  **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]   Subdevices: 1/1   Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 3: HDMI 0 [HDMI 0]   Subdevices: 0/1   Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 7: STAC92xx Digital [STAC92xx Digital]   Subdevices: 1/1   Subdevice #0: subdevice #0