I have been charging my tablet with a 100W PD charger, and never gave me a problem, but suddenly today it did. The port works perfectly, as I tried to charge using a docking station USB-C max 60W connection and it worked flawlessly, but every time I connected the charger directly, it doesn’t work. Already tried with 3 different PD chargers (2 of 60W max, and 1 of 100W max), as well as different USB-C cables, but no results… 1st photo shows the charger connected directly (no light turned on, it means it is not charging) and the 2nd photo with the same charger and cable, but connected through a Docking Station (works). Seems to be something related to firmware or drivers (but we haven’t changed them lately).
The first thing I do in case of power issues is check/clean USB sockets and connectors. A little dust may prevent proper powering.
Then I have equipment that monitors what happens between Powered Device (tablet, laptop, phone, flashlight, etc. ) and Power Delivery Device (Power Supply, Power Bank)
-FNIRSI FNB58 (expensive, complex, but lots of info including protocol sniffing and cable testing)
-HIDANCE HDC-085C (cheap, simple with basic info)
Cheers, Jaap
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If that does not work, you could buy a new charger, if you are interested please let me know.