malfunctioning USB port

Question

Hi,

I've just received my first Raspberry pi, a model B with a pre-installed NOOBS. I installed Raspbian. I can see that the OS is not the latests and I haven't upgraded yet.

My problem is that when I plug either a mouse or a keyboard into the lower USB slot, the device doesn't work. Either works when plugged into the upper slot. I currently have the system running with mouse and keyboard (and wi-fi dongle) plugged into a USB hub, which is plugged into the upper slot on the pi.

This seems like a hardware problem but I thought I should check to see if there's a configuration that I might need to adjust. Can anybody advise me?

Thanks.

-- Stuart

rew · Answer

Yes, sure looks as if it is a hardware problem.

Both are connected to the same chip, so there is not the possibility of chip X working chip Y not working due to a software issue.

I suggest you contact the company you bought your raspberry pi from and ask them for advice. ("Hi, I got the raspberry pi, but I have a problem with the bottom USB port (explanation omitted...) I suspect it's a hardware problem. What do you think?")