Re: No DPMS for Console on x86_64

[Andi Kleen]

Thomas Zehetbauer <thomasz@xxxxxxxxxxxxxx> writes:
> 
> I wonder how difficult it would be, to port APM to the x86_64

Modern systems generally don't have working APM anymore.
There are replacement ACPI video options, but they seem to 
be rarely implemented because the system vendors assume the
video driver will do the job.

Also even if they had it wouldn't be implemented in the 64bit
kernel.

> architecture or to provide DPMS support in the FBDev drivers.

There is some code from PPC for that, but it is generally very 
PPC specific. Backlight control also varies a lot so it would
likely need tweaks for most laptops.

Or just run a X server. It also doesn't get this right always, but
at least sometimes.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/