[Bug 140782] Re: Inspiron 1420 LCD brightness keys broken

[DarkStarSword]

My thinking is that on these models we should just let the BIOS handle
this, since it handles it very well, and doing it through userspace
means:
* We need to handle it in every environment - KDE, Gnome, pure
console, X with no window manager, etc.
* We need to make sure it's always responsive and users do not
perceive any delay
* We're essentially going to end up telling the BIOS to do exactly
what it wanted to do in the first place since these models handle it
through libsmbios (I believe the controls in ACPI use libsmbios anyway
based on what I read in a pre-feisty bug report).

The only reason I can think of for not trusting it to the BIOS is if
we need to override it for some reason (software driven brightness
profiles? BIOS already keeps them for battery vs. AC, and it should
still be possible to do more sophisticated stuff without disabling
this feature since we can still get&set the brightness at any time).

Just my 2c. Maybe there is a very good reason for not trusting the
BIOS that I'm not seeing (Aside from "because we can").

-- 
Inspiron 1420 LCD brightness keys broken
https://bugs.launchpad.net/bugs/140782
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