I decided to do a couple tests together, so I grabbed the latest F29 Xfce image.
Built my SD card for a Cubieboard2.
Plugged in the HDMI video,keyboard, mouse, and serial TTY then booted up.
Got system messages both on the serial console and the screen. Got to the login on TTY.
But the screen went blank on perhaps trying to switch from character mode to graphics. All I have is backlit.
I powered off from the serial console, rebooted but still nothing on the video.
End of day of work here. Turning off until Sunday, and will check in for what to test next to figure this out.
Tell me what if anything you need. Oh, I see the following messages on the console:
[ 520.350503] alloc_contig_range: [74200, 749f8) PFNs busy [ 522.801911] alloc_contig_range: [74200, 74af8) PFNs busy [ 522.815299] alloc_contig_range: [74400, 74bf8) PFNs busy [ 781.133132] alloc_contig_range: [74200, 749f8) PFNs busy