Re:Ask HN: How to navigate USB-C charging hell
by ksec on Saturday December 25, 2021 @05:28AM
(#29682036)
Your OnePlus 5T have an USB 2.0 with USB-C port which by default should be charging with minimum of 2.5W. A full charge from zero to full would take 6 hours. This is likely what you are seeing now.
Your old MB was likely charging at default USB-C port which "should" have a minimum of 7.5W charging, i.e 3x of what you are getting. My guess is that OnePlus is looking for USB-PD 1.0 but your newer Motherboard only support USB-PD 2.0 and 3.0. So it somehow dropped back to the minimum USB2.0 charging standard.
Again you should look at BIOS settings to see if there are any relevant options.
Your old MB was likely charging at default USB-C port which "should" have a minimum of 7.5W charging, i.e 3x of what you are getting. My guess is that OnePlus is looking for USB-PD 1.0 but your newer Motherboard only support USB-PD 2.0 and 3.0. So it somehow dropped back to the minimum USB2.0 charging standard.
Again you should look at BIOS settings to see if there are any relevant options.