I just got a pair of U2415 monitors and I was hoping to use the single rear USB port (at the back of the screen) to charge my phone. I noticed that when I connected my phone the charging icon kept togging between "charging" and "not charging". The phone otherwise charges fine through the same cable from other sources. I connected a USB port tester to the port and I saw the voltage on the port alternating between 0V and 5V, that would explain phone getting current for a half a second and then not. I have reset the monitor to factory settings and also tweaked with USB power settings but no success. I have not connected the monitors USB connection to the computer(for the hub functionality), but I thought the Single USB in the back was supposed to provide power irrespective of that. Any suggestions on what I can do next to figure this out?
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