Question Desktop greets me and says good bye?

[unlistedmoniker]

My home built desktop operating Win10 has begun greeting me as I physically approach the desk with a chiming identical to that of plugging or unplugging a usb device. It also dings as I leave the immediate area. I'm sure it is neither the mouse moving nor the add-on camera atop the monitor. My only possible clue is that I've had usb related lockups when plugging in or removing usb devices, and an infrequent message that the "last usb device installed is malfunctioning. I can't put the pieces together, but somehow the blasted machine seems able to determine my approach and exit from the desk. It makes no sense to me, but I've tested it again and again. There is just a little less consistency to my leaving the desk than there is to approaching it. If I can't find the cause, I'm tempted to name the blasted thing "Hal" and start talking to it.

 

[Colif]

is PC unlocking itself as you approach? or just making the noises?

How do you unlock PC normally? are you using face unlock or something with the camera?

https://support.microsoft.com/en-au/help/17215/windows-10-what-is-hello

 

[unlistedmoniker]

PC remains in sleep mode if it's in sleep mode when I approach, but if it is "awake" I get the chiming both approaching and leaving. I disconnected the camera since it was the only logical sensor I could think of that could account for the response. Made no difference.

 

[SkyNetRising]

Probably pc is reacting to some bluetooth device - phone perhaps.

https://techviral.net/how-to-lock-unlock-pc-using-bluetooth-of-smartphone/

 

[unlistedmoniker]

Hard wired to modem, but I will recheck the MB specs to see if there is any wireless capability built in that I ignored or missed when building. Should require a bluetooth dongle to function that way. Hadn't thought of that possibility, though. I did try to set up a blue tooth link months ago with my little flip phone to download photos, but it did not function. I'll look at that setting as well.

 

[unlistedmoniker]

Found it! Apparently, Philips 257E monitor is equipped with an infrared sensor that detects when there is a warm body in proximity. similar models supposedly dim the monitor and saves energy when no one is present and kicks it back up when someone approaches. I haven't noted any dimming, but it definitely sends a signal that triggers the chimes. Now all I have to do is find out how to turn it off. Thanks for the thoughts - got me on the right track.

 

[unlistedmoniker]

After reading online about the infrared sensor in philips monitors detecting a person sitting in front of them, philips tech tells me this model doesn't have one. Back to scratch. I'm not sure I trust the answer since nothing else seems to make any sense, so I'll try to borrow a monitor, swap it out, and see what happens.