No external video output

  • Thread starter Thread starter walho.bob
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walho.bob

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Lenovo P50, LG 27GQ40W external monitor stopped display and detection after build 27723. Cables are seated, replaced and tested & monitor tested. Stopped working on HDMI (default for years) then tried USB-C to HDMI monitor, mini-display port to monitor display port. No external monitor detected. Laptop display works perfectly, just no video output to three types of the laptop's ports.

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