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#1 2015-11-20 17:41:48

Oliwan
Member
Registered: 2015-11-20
Posts: 1

ALSA - HDMI card (NVIDIA) muted by webapp on chromium

I have a very strange issue and probably some of you can help me or (anyway) can give me an hint on where to begin...

I'm developing a webapp that uses webaudio library to manage sounds.
I have this application to run in a Chromium window, in kiosk mode, and on a monitor connected via DP of my NVIDIA card.
Everything is configured well and works fine.

BTW sometimes, in a way that I couldnt reproduce, (all outputs of) my nvidia card becomes muted and I have to run alsamixer to set everything unmuted again.
I'll have everything working again (for a while) until it happens again. (reboot doensnt matter).

In my webapp I play with volumes and webaudio contexts. But it should happen everytime I run it, or  not? XD

My question is:

How can I block Chromium or any other application to make permanent modifications to audio levels? (Or just make that they can't mute all my card's output)

For my configuration purposes I CANNOT install pulseaudio or OSS to solve this problem I have only ALSA and everything works fine but this.

I hope its clear... (its not even clear for me to explain XD)

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