Loud plopping via USB-Audiointerface, sometimes disconnecting

I’am new to Manjaro. Switched from Ubuntu 20.

Somehow Manjaro disconnects sometimes my USB-Audiointerface (Focusrite 2i2 2nd Gen), as well it sets it to a “suspend mode”, turning it off after 15 (?) seconds. Then it plops pretty loud through my speakers while turning off. When there will be sound from my system, it plopps again then plays the sound … after 15 secs it plopps to “standby” again.
This is so annoying.

I also experienced some issues with jackd2 via Cadence, qjackctl and command line. When switching jack off (hehe), sometimes the USB-audiointerface disconnects until I log back in.

I never experienced both when using Ubuntu with GNOME. So it propably has to do something with Manjaro/Arch.

Can you help?

Hello @HansD :wink:

Checkout /etc/tlp.conf:

# Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
# A value of 0 disables, >=1 enables power saving (recommended: 1).
# Default: 0 (AC), 1 (BAT)

#SOUND_POWER_SAVE_ON_AC=0
#SOUND_POWER_SAVE_ON_BAT=1

I assume it happens only in Battery mode?

Check also if tlp is running:

systemctl status tlp

Ubuntu seems to not use tlp then for powersaving.

Ty @megavolt.

# Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
# A value of 0 disables, >=1 enables power saving (recommended: 1).
# Default: 0 (AC), 1 (BAT)

#SOUND_POWER_SAVE_ON_AC=0
#SOUND_POWER_SAVE_ON_BAT=1

# Disable controller too (HDA only): Y/N.
# Note: effective only when SOUND_POWER_SAVE_ON_AC/BAT is activated.
# Default: Y

#SOUND_POWER_SAVE_CONTROLLER=Y

and

● tlp.service - TLP system startup/shutdown
    Loaded: loaded (/usr/lib/systemd/system/tlp.service; enabled; vendor prese>
    Active: active (exited) since Sat 2020-11-28 09:47:06 CET; 11min ago
    Docs: https://linrunner.de/tlp
    Process: 618 ExecStart=/usr/bin/tlp init start (code=exited, status=0/SUCCE>
   Main PID: 618 (code=exited, status=0/SUCCESS)

Since I am using a Desktop PC there is no battery, just AC. But I set it to 0 all the way and the power_save to “N”. Let’s see, if this works. :slightly_smiling_face:
TY so far

I somehow solved it.
I used TLPUI to disable it (again), and it works. Just strange, but ok.

I use Audient iD14 MKII USB audio interface.
I disabled everything related to the power management then tweaked PulseAudio settings with no success.
Then I found the following question on askubuntu: Audio Pops & Clicks on USB-Soundcard (ID 1298326). Upgrading the Linux kernel from 5.10.84-1 to 5.14.21-2 solved the problem in my case.