Audio volume jumps to 100% by itself

Help
1

I have an issue where the audio volume jumps to 100%. It happens reliably when:

  • spotify goes from one song to the next
  • when I click “l” to jump forward 10 sec while watching a youtube video

But it also happens (seemingly) randomly at other times.

Here’s a video demonstrating what happens with the volume when I jump 10sec forward in a video: Demonstrating audio issue on nixos - YouTube

Relevant part of configuration.nix:

  # Enable sound.
  sound.enable = true;
  hardware.pulseaudio.enable = true;

Some other debug info that may help for someone with a better grasp of this than myself:

[nix-shell:~]$ lspci | grep -i audio
00:1f.3 Audio device: Intel Corporation 100 Series/C230 Series Chipset Family HD Audio Controller (rev 31)
01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC887-VD Analog [ALC887-VD Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 11: HDMI 5 [HDMI 5]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 2: Headset [Logitech G930 Headset], device 0: USB Audio [USB Audio]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

Any help to pinpoint the issue here would be much appreciated. Thanks!

2

I saw a similar thread recently, in which switching to pipewire was suggested in general, which solved the issue there. I had a similar problem with my volume resetting to 100% (but I think under different circumstances), and this also seems like switching to pipewire solved it (was using pulse before as well).

Thread here: Headphone volume resets itself to 100% - #2 by hmenke

2 Likes
3

Thanks for responding! I tried that, but it didn’t make any difference. However, I discovered that the problem is exclusive to Firefox. See this new video: NixOS Firefox audio issue - YouTube. Here I have firefox on the very left, chrome in the middle, and pavucontrol on the right. The audio volume stays sane in chrome, but with firefox it jumps to 100%.

4

I experience the same issue, but I’m using the spotify client. Firefox is open but without audio streams… so it doesn’t look exclusive to Firefox

5

Do you have the same issue with Firefox? Would you be able to check whether you have the issue in chrome?

6

I actually have open firefox most of the time but these audio bugs are really hard to reproduce. The 100% haven’t experienced any volume jump yesterday or today…