monitor goes black whenever I stand up

pellui

Prominent
Jul 8, 2017
31
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530
Ok, very often when I stand up to leave my laptop setup, the monitor I was facing turns off for a sec (hdmi connection, link to monitor at the end of the post).

Few days ago when I was sure it wasnt a coincidence I stood up 5 times in a row and every time the monitor went black. (6th time it no longer did). The last time it rebooted fully: acer logo was displayed as it turned back on.

any ideas about what could be causing this?

https://www.pchardwarehelp.com/guides/ipsmonitor/S275HL.php
 

pellui

Prominent
Jul 8, 2017
31
0
530
i found the solution: when I get up, I push my chair with metal legs agains metal legs of a small weight lifting bench i keep under my table, somehow whenever those two meet, the display goes black, so, now i took care to sit a bit further away from the weight lifting bench, so those do not touch and the monitor doesn't go black. I have no idea why that would cause it tho. But every time I fail to avoid that contact from happening when gettin up, the screen goes black