I tried to hibernate Ubuntu (which fails, but thats another issue) and resumed my system.
After this, the sound doesn't get played.
What command can/should I run to restart the ubuntu sound system.
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1see also askubuntu.com/a/15224/17060– michaelDec 7, 2017 at 6:17
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Did Dan Walker’s answer work for you? If it did, it would be nice if you would add a comment saying so. If not, why did you accept it? You should accept an answer only if it works for you.– Scott - Слава УкраїніAug 4, 2018 at 19:33
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6 Answers
If Ubuntu is still using Alsa for its sound engine (I'm not sure as its been awhile since I've used it), you can restart by typing sudo /etc/init.d/alsa-utils restart into the terminal.
Since it doesn't seem to be working, you might need to make sure that nothing is trying to use it. (example shamelessly stolen from the Ubuntu forums)
name@comp:~$ lsof | grep pcm
sh 5079 name 70u CHR 116,6 13639 /dev/snd/pcmC0D0p
name@comp:~$ kill -9 5079
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1Nice try. Good answer. But in my case, doesn't solve the problem. Yes, to my best knowledge, I use ALSA itself.– lprsdAug 2, 2009 at 19:04
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Any specific order to follow. Restarted both. No luck. I am confident, by restarting my system, sound will work. But I dont want to.– lprsdAug 2, 2009 at 19:06
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Seems like I will have to kill firefox, chrome, and gnome-panel. As good as restarting the system :| . Anyway, thanks!– lprsdAug 2, 2009 at 19:11
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That's what I ended up having to do @LakshmanPrasad - I had, easily, 12-18 pulse processes. Cut that down to ~6 after closing everything except gnome. It's easier, if not too windows-y to just restart. Oct 9, 2020 at 19:26
As suggested by mikewhatever in his answer to this question on Ask Ubuntu:
pulseaudio -k && sudo alsa force-reload
Scott - Слава Україні
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answered Aug 4, 2018 at 18:14
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this is the best solution, because after the notebook sleep and I used to listen music I had strange noises, now with this restart everything is Ok !!! Great ! Great ! May 31, 2020 at 0:54
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PulseAudio is a user service, so run systemctl with the --user flag.
systemctl --user restart pulseaudio
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I get
Job for pulseaudio.service failed because the control process exited with error code. See "systemctl --user status pulseaudio.service" and "journalctl -xe" for details.Any advice?– xjclJan 24, 2020 at 23:53 -
Ubuntu swichted to pulseaudio some time ago, so it would be:
sudo /etc/init.d/pulseaudio restart
EDIT: In case that doesn't cut it, you could also rmmod and modprobe the kernel modules used for sound. Which those are probably depends on your sound card. lsmod might give you a clue...
Alsa Usage:
/sbin/alsa {unload|reload|force-unload|force-reload|suspend|resume}
sudo alsa reload
I reverted to a previous kernel after a reboot. Sound was restored. I found out that the newer upgraded kernel did not have the extra modules installed like the older one did. lsmod listed no sound modules.
