I am sorry to hear you are having problems but let me help you with this.
At this point we have not received reports from other users in regards this. Honestly you have tried pretty much all steps but it seems that issue persists.
The only step I recommend is trying with a Win OS as testing so we can discard software configurations but based on all the information I would say it is a hardware issue. I recommend you testing just the Win OS and if it still having issues contact your local support for further assistance or replacement in case of being necessary.