$ uname -a Linux oxygene 4.8.0-040800-generic #201610022031 SMP Mon Oct 3 00:32:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
The really same. Moreover, this hissing sound can be heard with BIOS/etc too, without any OS, it's even more louder then.
The issue started with this machine, I didn't have it with previous ubuntu versions ...
$ uname -a generic #201610022031 SMP Mon Oct 3 00:32:57 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Linux oxygene 4.8.0-040800-
The really same. Moreover, this hissing sound can be heard with BIOS/etc too, without any OS, it's even more louder then.
The issue started with this machine, I didn't have it with previous ubuntu versions ...