No HDMI signal
I have a problem with my up-board UP-CHT01-A22-0432-A11 (4GB RAM, 32GB EMMC, Atom x5-z8350).
I install windows 10 IoT core, it was installed successfully, after I shut it down and disconnect from electrical site.When I connected it to the electrical site next day the blue LED was lighting and keyboard and mouse were power up but the display connected with HDMI was showing "No signal from HDMI".
I tried to connect another displays with more cables and it was same, only "No signal from HDMI". And when I connected this display to the computer it was working.
I tried to unplug RTC battery for reset BIOS but it never change.