I have a nrf9160dk that drives a screen via SPI, using an IT8951 controller. The firmware driving the screen works fine if I plug the USB cable on a power bank or using MS Windows, but the screen updates are not performed when using Linux as host machine, all debug messages are printed correctly via minicom but the screen is doing nothing. Even with a very old Windows version (XP) it works fine but never under Linux. I tried on different computers and different kind of USB ports , v.2 and v.3. I used also the suggested blacklist of udev, to avoid any interference with ModemManager but no success. I was thinking the problem was a lack of power on USB ports so I purchased an external USB hub powered by a separate power supply, but even this solution didn't work. Is there any special configuration on USB that I have to perform under Linux ? Or do you have any indication on how to solve the issue ?
Thanks.
Best Regards
