Running a version of OpenEmbedded on a Raspberry Pi 2, the screen blanks after ten minutes.
This happens regardless of whether there is keyboard activity. It will blank while you're typing.
The keyboard still works, blindly typing
shutdown -r nowreboots it and brings the screen back.
X is not installed, so all the solutions using
xsetdoes not apply.
settermis not installed, solutions using that doesn't work.
consoleblank=0 is already set on the kernel command line.
A serial terminal on /dev/ttyAMA0 continues to work.
Networking continues to work, you can still ssh to it.
Logs show absolutely nothing of use.
Any ideas on what else I can try? What is causing the screen to blank?