> > Nope, it's not. fbset 0 does nothing useful. fblevel 0 would be equivalent
> > to fblevel off though.
>
> Should it? I just tried fblevel off; fblevel 10 and it remained black. Blindly
> typing fblevel 10 again didn't help. Only when I issued fblevel on did it come
> back.
You're right - that's something that's always been striking me as odd.
fblevel 0 shuts down the backlight sure enough, fblevel <some number >=1>
switches it back on, but fblevel off does more than fblevel 0. It uses a
fbcon ioctl instead of the pmu one, and just blanks the display. The
framebuffer driver does the Right Thing and switches off backlighting in
that case. It might also power down parts of the graphics engine ...
Michael
