From 06c1d65e481210f8c8cdeae896958383b7571ce5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=85=AD=E5=BC=80=E7=AE=B1?= <lkxed@outlook.com>
Date: Sun, 27 Nov 2022 12:17:51 +0800
Subject: [PATCH] =?UTF-8?q?[=E6=89=8B=E5=8A=A8=E9=80=89=E9=A2=98][tech]:?=
 =?UTF-8?q?=2020221126.1=20=E2=AD=90=EF=B8=8F=20How=20I=20Fixed=20Buzzing?=
 =?UTF-8?q?=20Noise=20Coming=20from=20Speakers=20in=20Linux.md?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...Buzzing Noise Coming from Speakers in Linux.md | 130 ++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 sources/tech/20221126.1 ⭐️ How I Fixed Buzzing Noise Coming from Speakers in Linux.md

diff --git a/sources/tech/20221126.1 ⭐️ How I Fixed Buzzing Noise Coming from Speakers in Linux.md b/sources/tech/20221126.1 ⭐️ How I Fixed Buzzing Noise Coming from Speakers in Linux.md
new file mode 100644
index 0000000000..a6e34a26fe
--- /dev/null
+++ b/sources/tech/20221126.1 ⭐️ How I Fixed Buzzing Noise Coming from Speakers in Linux.md	
@@ -0,0 +1,130 @@
+[#]: subject: "How I Fixed Buzzing Noise Coming from Speakers in Linux"
+[#]: via: "https://itsfoss.com/buzzing-noise-speaker-linux"
+[#]: author: "Sagar Sharma https://itsfoss.com/author/sagar/"
+[#]: collector: "lkxed"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+How I Fixed Buzzing Noise Coming from Speakers in Linux
+======
+
+I used a laptop for a long time but only recently switched to a desktop setup for my remote work at It’s FOSS.
+
+I noticed a constant buzzing sound coming from the speakers. It was annoying and gave me headaches. I started out to fix the issue. It was quite interesting to know the root cause of the issue.
+
+I will share my experience of fixing the buzzing noise from speakers in Linux. I found it working with Ubuntu, Debian and Pop OS on the same hardware.
+
+One thing to consider is that you may have a serious hardware issue if this guide does not work for you. For most users, the given solution should get the job done.
+
+**Before you try the fix …** 
+
+I have tried to make things easy to follow safely. You try the temporary fix and if it works, you make the changes permanent. However, it would be a good idea to make system snapshots with Timeshift. If you are easily panicked when things do not work, you can restore the system to the earlier state.
+
+Also, check your sound card. In my case, it was snd_hda_intel. For USB card, it could be snd_usb_audio. You have to change the commands according to your sound card.
+
+```
+cat /proc/asound/modules
+```
+
+### The reason behind the buzzing noise from speakers in Linux
+
+After combing through numerous forum posts and websites, I learned the root cause of the issue. It is because of capacitor discharge in the speakers. And it can be solved by turning off the power-saving setting of a sound card.
+
+By turning off power saving, you are allowing the system to charge those capacitors when they get discharged. It is similar to using a phone while charging constantly. 
+
+And you can check whether the power-saving setting for the sound card is enabled on your system by using the given command:
+
+```
+cat /sys/module/snd_hda_intel/parameters/power_save
+```
+
+![power saving setting in sound card making buzzing sound in linux][1]
+
+And if you get 1 in output like mine, the power saving is turned on. So let’s have a look at the solution.
+
+Don’t worry. This will not affect your battery percentage drastically, as the shown method is only applied to the sound card. 
+
+### Try fixing the buzzing noise issue (temporary)
+
+The reason why I included the temporary way is to identify whether the humming sound is being caused due to capacitor discharge or if there is any serious hardware problem going on.
+
+If this temporary solution works, you can go ahead with the permanent solution.
+
+The first step is to switch to the root user:
+
+```
+sudo su
+```
+
+And then, execute the given command, and it should stop the buzzing sound until the next boot:
+
+```
+echo 0 > /sys/module/snd_hda_intel/parameters/power_save
+```
+
+If you are using **a USB sound card**, you have to interchange `snd_hda_intel` with `snd_usb_audio` as given:
+
+```
+echo 0 > /sys/module/snd_usb_audio/parameters/power_save
+```
+
+If the above trick fixed the issue, you have to make things permanent. Otherwise, the changes will be lost when you next reboot your system.
+
+### Fixing the buzzing noise issue (permanently)
+
+Here, I’m going to make changes in kernel parameters.
+
+Change your working directory to /etc/modprobe.d:
+
+```
+cd /etc/modprobe.d
+```
+
+And now, create a new file named `audio_disable_powersave.conf` and open with the nano text editor using the given command:
+
+```
+sudo nano audio_disable_powersave.conf
+```
+
+And put the following lines in that file to turn off the power-saving setting in the sound card permanently:
+
+```
+options snd_hda_intel power_save=0
+```
+
+![fix buzzing sound in linux][2]
+
+For **a USB sound card**, you can use `snd_usb_audio`:
+
+```
+options snd_usb_audio power_save=0
+```
+
+Now, [save changes and exit the Nano text editor][3] by pressing Ctrl+X keys. Reboot your system, and you can enjoy a noise-free workspace. 
+
+### Wrapping Up
+
+This guide explains the cause of the buzzing noise and how you can straightforwardly solve that issue. 
+
+Again, you may have some other issue rather than discharging capacitors, so you should always try the temporary method.
+
+Let me know if you were able to fix the buzzing noise from speakers in Linux this way or not.
+
+--------------------------------------------------------------------------------
+
+via: https://itsfoss.com/buzzing-noise-speaker-linux
+
+作者：[Sagar Sharma][a]
+选题：[lkxed][b]
+译者：[译者ID](https://github.com/译者ID)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://itsfoss.com/author/sagar/
+[b]: https://github.com/lkxed
+[1]: https://itsfoss.com/wp-content/uploads/2022/11/power-saving-setting-in-sound-card-making-buzzing-sound-in-linux.png
+[2]: https://itsfoss.com/wp-content/uploads/2022/11/fix-buzzing-sound-in-linux.png
+[3]: https://linuxhandbook.com/nano-save-exit/