Yes, it is; follow the link PeterO posted:rpural wrote:No; The system runs perfectly fine, but just has this square in the upper right.
It' the same for the Pi2BWhen using a B+, and the Raspbian GUI and a "rainbow square" appears in the top right corner, then that is also an indication of a power problem, as is the PWR LED suddenly blinking off.
Please read Jamesh post above. It is quite clear.mgaledo wrote:The same happens to me with a Raspberry Pi 2.
Any idea if its a malfunction or configuration?
+1jamesh wrote:Also, make sure your USB cable is decent quality. Even the best PSU in the world cannot make up for a bad USB cable.