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HDMI (High-Definition Multimedia Interface) is a widely used interface for transmitting audio and video signals between devices and displays.

18 votes
5 answers
28k views

External monitor stays black after "locking" (or sleeping) [duplicate]

Both monitors are a bit older; they have DVI ports which connect via DVI/HDMI cable. … Monitor 1 is then connected via a Kensington USB-C dock, Monitor 2 is connected via a StarTech HDMI<->USB-C adapter. My problem: as soon as I lock my screen ... Monitor 2 will stay black. …
GhostCat's user avatar
  • 977
4 votes
Accepted

External monitor stays black after "locking" (or sleeping)

[All the monitors should be online by now] Proceed with login Earlier workaround: This one worked, too ... but is obviously more of a hassle: re-seat (disconnect + reconnect) the HDMI cable from my … HDMI/USB-C adapter. …
GhostCat's user avatar
  • 977