The original post: /r/ubuntu by /u/Elegant-Radish7972 on 2024-12-26 11:46:18.

I’m at a loss here.

I’ve had my system, which I built, for over a year. The audio comes out through USB to a M-Audio Air 192/4 audio interface which then goes to an independently powered headphone amp to power my headphones and a small independently powered amp for my shelf speakers. I dabble in music creation with my USB keyboard and use Ardour mostly.

Tonight, I was watching a youtube video on firefox and suddenly got the twirling circle on the video which normally indicates a video download issue and thought it to be nothing but it never continued. I tried other videos on other sites and they were froze in limboland too. I suspected a cut in internet so I did a check on speedtest and it came out fine. All websites came out fine except on those that played a video. The page loaded on all those but the videos froze.

This got me curious so I shut down the browser and opened up a video or two I had locally on my machine and they,too, locked up, no matter what video player I used, including Haruna and VLC, they locked up at first but eventually played with no sound. I was getting a total loss of sound.

In the past, I would get a very occasional loss of sound but i was told to just unplug the Air 192 and replug it and it would usually fix the problem right away. It doesn’t work at all now.

The only work-around I have right now is to port audio though my HDMI to the TV, which I use as a monitor. This set-up, of course doesn’t allow headphone usage and mixing other inputs in music creation.

I also noticed that the HDMI seems to want and take over the audio volume controls. If I set the Air interface to be active and turn off the HDMI, and use the wheel on my mouse, the volume adjustment will still continue to scroll the HDMI volume even though it is deactivated. Of course, since it’s deactivated, I get no sound.

I might add that I have dual-boot machine with Windows 11 pro, which I rarely use due to privacy concerns, and the Air 192/4 audio interface works flawlessly so I know it’s not the equipment going bad.

How do I fix this please?

System:

Operating System: Ubuntu Studio 24.10

KDE Plasma Version: 6.1.5

KDE Frameworks Version: 6.6.0

Qt Version: 6.6.2

Kernel Version: 6.11.0-13-generic (64-bit)

Graphics Platform: X11

Processors: 32 × Intel® Core™ i9-14900K

Memory: 94.0 GiB of RAM

Graphics Processor: NVIDIA GeForce RTX 3060/PCIe/SSE2Manufacturer: ASUS