HDMI Screen Blank


I flashed my HiKey board with OP-TEE. It used to work. But for some strange reason, now the monitor does not have any output. I can still access it through the serial console. But what I really need is the ability to set up the wifi connection. Is there a way to do that through the serial console? Thanks.


I think for some reason, this is caused by having something plugged into the micro-usb and mouse at the same time. However I am encountering this problem where I have to give the “Default keyring” password in order to get a wifi connection. I tried the default “linaro”, but it didn’t work. Any ideas or if I could configure it to something else?

I have hikey-jessie-alip_20151130-387-8g.emmc.img.


Any reason you’re still using 15.11? Can you try the latest? Also refer to https://github.com/96boards/documentation/wiki/General-Tips for setting up wifi via the cli.