Hello, so this is a recent issue I have with my Dell Latitude E7240. I hear no sound coming on my E7240 (even when I put the volume up, nothing happens), I tried to do a diagnostics test with the audio, and I didn't hear anything at all. First I kind of thought I updated my operating system, which is Xubuntu 20.0.4 LTS by the way, and then the sound stopped working, and thought I had to restart my machine for the OS to detect the sound (sometimes the audio will pop up, but then stops working after that), then as I mentioned earlier, I did a diagnostics test to test the audio, and I heard nothing. I guess my speakers of my E7240 are dying or something I'll assume (and if that's the case, then I'll need to get a speakers replacement), What could be the issue in terms of my E7240 not emitting sound?