Could Not Copy Ezx2_progressiverock/sounds/soundb1.obw. Try Again?

After setting up a new computer with Ubuntu 18.04, I noticed there's no sound coming out (from speakers, headphones or HDMI). Looking in the Audio settings (from Gnome Settings), I noticed there'southward simply a Dummy Output as a sound output device.

The starting time thing I did was to look for solutions online, like this one, merely none worked (though that solution may piece of work for you so give information technology a try). Then I remembered that a while back I managed to fix the sound for my former desktop (which was upgraded to newer Ubuntu versions instead of a make clean install), so I tried that solution and... it worked!

Here is what I did to get the sound to work in Ubuntu 18.04 - hopefully this will piece of work for some of you as well.

I should as well mention that my computer uses the snd_hda_intel kernel module (Realtek ALC892 codec). I'll explain how to cheque if you're running this every bit well, below (step 0).

I only had to use this fix in Ubuntu, simply I assume information technology works in other Linux distributions likewise. At least, it should also solve similar problems in Linux Mint, unproblematic Bone and probably Debian as well (just it should use to many other Linux distributions though I can't test that).

Update for no audio afterward unplugging HDMI cable. In case you've plugged in an HDMI cable, so unplugged it and you lot're no longer getting any sound on your Ubuntu desktop, the solution is quite uncomplicated. Plug in the HDMI device back and yous should be able to switch back to the integrated / external speakers, so you can unplug the HDMI cable again.

[Edit: March 2020] There'due south a kernel regression (in Linux 5.iii.0-41 and probably newer versions running on Ubuntu 19.10) which causes a new "dummy output" issue on Ubuntu 19.ten. I take updated this commodity with a fix for this result - you tin detect it most the end of the article (titled #2 Fix PCI/internal sound card not detected (dummy output) with Ubuntu kernel 5.iii.0-41 and newer in Ubuntu xix.x). Edit #2: This appears to also happen in Ubuntu 18.04, and possibly on Ubuntu twenty.04.

[[Anoter edit]] The offset prepare you should effort is to simply restart PulseAudio, using this command:

This fixes the sound in many situations. East.thousand. if your headphones don't show upwards in the system sound settings.

#1 Fixing the no sound issue in Ubuntu (Dummy Output)

0. This no sound in Ubuntu fix works if your calculator is using the snd_hda_intel kernel module. So before attempting to use this fix, check out to see if the snd_hda_intel kernel module is in apply. For this yous can run:

              lsmod | grep snd_hda_intel            

Which should brandish at to the lowest degree 1 snd_hda_intel entry. Here'due south the output from my reckoner:

              $ lsmod | grep snd_hda_intel snd_hda_intel          40960  8 snd_hda_codec         126976  4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek snd_hda_core           81920  5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek snd_pcm                98304  4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_hdmi snd                    81920  27 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_realtek,snd_pcm            

Y'all can also run:

              lspci -nnk | grep -A2 Audio            

Which should display the audio devices along with the kernel module / driver in use. This is the output from my system:

              $ lspci -nnk | grep -A2 Sound 00:1b.0 Audio device [0403]: Intel Corporation vi Series/C200 Series Chipset Family High Definition Sound Controller [8086:1c20] (rev 05) Subsystem: Dell 6 Series/C200 Series Chipset Family High Definition Audio Controller [1028:04a7] Kernel driver in utilize: snd_hda_intel Kernel modules: snd_hda_intel            

1. If you lot do get snd_hda_intel in the output of the in a higher place commands, and you get no audio (and only a Dummy Output) in Ubuntu, here'south what y'all can endeavor to fix information technology. You need to add options snd-hda-intel model=generic at the end of the /etc/modprobe.d/alsa-base.conf file. Practice non alter annihilation else in this file!

You can add together options snd-hda-intel model=generic at the stop of /etc/modprobe.d/alsa-base.conf by running this control:

              echo "options snd-hda-intel model=generic" | sudo tee -a /etc/modprobe.d/alsa-base.conf            

Only run this command once because it adds this line each time y'all run information technology! If you want to modify it, open /etc/modprobe.d/alsa-base.conf as root with a text editor.

2. After this, reboot your system. Hopefully your sound at present works in Ubuntu and you no longer get only a Dummy Output device in System Settings > Sound .

If you lot proceed to go no sound output and still but see the Dummy Output in Organization Settings, you lot can endeavour to gear up the model to auto instead of generic , then edit the /etc/modprobe.d/alsa-base.conf file with a text editor (equally root) and change that. You can find a list of other models you lot tin try depending on your computer hardware here.

#2 Set PCI/internal sound menu not detected (dummy output) with Ubuntu kernel v.3.0-41 and -42 in Ubuntu 19.x / 18.04

There's a regression (thanks JustNiz for notifying me) in the 5.3.0-41 and -42 kernel that causes a new "dummy output" issue on Ubuntu 19.ten and 18.04. The explanations for this bug are available in this bug report, and then I won't go into details, and I'll straight tell you lot how to ready it.

[[Edit] It appears this may besides happen for some Ubuntu 20.04 users.

The solution for this "dummy output" regression is to:

1. Edit /etc/modprobe.d/alsa-base.conf as root and add options snd-hda-intel dmic_detect=0 at the finish of this file. You can practise this with a single command, by using (run this command only once):

              echo "options snd-hda-intel dmic_detect=0" | sudo tee -a /etc/modprobe.d/alsa-base of operations.conf            

two. Edit /etc/modprobe.d/blacklist.conf as root and add blacklist snd_soc_skl at the cease of the file. You can do this with a single command, by using (run this command only once):

              echo "blacklist snd_soc_skl" | sudo tee -a /etc/modprobe.d/blacklist.conf            

3. Afterward making these changes, reboot your system.

The developers are working on fixing this. The fixed kernel version will probably be five.3.0-43. When that happens, undo these changes.

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Source: https://www.LinuxUprising.com/2018/06/fix-no-sound-dummy-output-issue-in.html

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