carsten_h wrote: > Hmm. A possibility. I am using the original Pi USB-C power adapter. > Can I see that there is a power issue without a screen? On the Pi 3 I > have a 7" display attached but I want to run the Pi 4 headless. > I had a true 5 amp power supply at 5.1 volt connected through a sturdy adapter to the USB-c , and still issues with the usb disks ! And I had to revert to a powered hub. That stabilised the HD power and thus USB connection, but also degraded it to usb2. Waiting for a powered USB3 hub now.
In other instances my SHORT Dupont wires connected to the GPIO pins had to much resistance, and I lost 0,23 volts on that without realising it in time. Power shortages or brown-outs can be seen with the HDMI screen connected, as a lightning bold in the top right ( or find a red thermometer ) I now regularly measure the voltage from the USB ports with a multimeter, as I created the right adapter cable. M-H Pi based multi-room audio system powered by PiCorePlayer(s): Pi3B with Phat-dac in a Rasptouch, 2 pi B+ with Cirrus Logic Audio Card, Pi Zero with Phat-beat , and a few other tests... ------------------------------------------------------------------------ M-H's Profile: http://forums.slimdevices.com/member.php?userid=66156 View this thread: http://forums.slimdevices.com/showthread.php?t=110727 _______________________________________________ unix mailing list unix@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/unix
