Linux silent audio source?

[Allshevski]

Hello, I've recently bought an ASUS motherboard with a Realtek ALC892 audio chip on it. It seems to be one of the most dreaded chips on Linux, as it will go into Powersave mode regardless of the configuration, resulting in very unpleasant ground-loop sound in my system.

The thing I'm looking for is a way to set up an audio source that would keep the chip constantly running after boot. Funny how just visiting the LTT forum has resolved the issue for now, but as much as I'd like to, I can 't stay there all day long.

Thanks in advance for any answers.

The OS is KDE Neon. It uses Pulseaudio, I'd like to keep it.

[vanished]

Interesting issue.  My advice would be to make a simple audio file that's just 1 second long and contains an almost imperceptible little blip - enough to let the chip know it's still getting a source, but not enough to hear, and make a cronjob that routinely plays it with a terminal player so there's no annoying popup

[SilverSoul]

https://www.kernel.org/doc/html/latest/sound/designs/powersave.html 

[Lukyp]

I got the same audio chipset and never experienced any issue, btw if you would like to disable the power save, as it's written in that kernel documentation, add this option to /etc/modprobe.d/alsa-base.conf (open it as root)

 

options snd-hda-intel power_save=0 

 

At the bottom, then save and reboot

 

And pulseaudio is mandatory on ubuntu-based distributions so you would even break the desktop trying to remove it. 

[Allshevski]

On 10/16/2019 at 8:21 PM, Chunchunmaru_ said:

I got the same audio chipset and never experienced any issue, btw if you would like to disable the power save, as it's written in that kernel documentation, add this option to /etc/modprobe.d/alsa-base.conf (open it as root)

 

options snd-hda-intel power_save=0 

 

At the bottom, then save and reboot

 

And pulseaudio is mandatory on ubuntu-based distributions so you would even break the desktop trying to remove it. 

I have attempted to disable the powersave option going by the documentation available, but it did not have any effect. I am using pulseaudio. Motherboard is ASUS H97-PRO. The only workaround I found was to sox black noise on startup.