My purism librem 13 v4 computer seems to make a persistent subtle low level yet distracting noise. It is not connected to the internet, only the office apps are being used, and yet it emits a strange persistent noise, a bit like the tinniest fax machine in the world, a series of ongoing rapid tiny electrical squelch like sounds, a bit like buzzing but intermittent - if I press a key and hold the sound it is continuous, and then intermittent when released. It’s subtle, yet audible enough to be distracting. Anyone have the faintest idea what this is? Is it normal, common, or some clever way of being hacked? I can honestly say I’ve never heard anything quite like it. Let me know if this resonates with anyone or anyone has anything to say to this; I can also get a recording and upload it.
Any ideas? Does anyone else have this? I always thought laptops should be silent bar the fan when running hot. I can use the office software, but am concerned the security / privacy is somehow compromised despite hardware kill switches being on