No BACKLIGHT for

[Kay Sievers]

On Wed, Apr 28, 2010 at 11:38, Richard Hughes <hughsient at gmail.com> wrote:
> Sorry to open an old wound, but it looks like radeon won't be adding
> BACKLIGHT into the driver, ever.
>
> https://bugs.freedesktop.org/show_bug.cgi?id=27859

That surely all belongs into the X server below the randr interface.
The intel driver does use the kernel sysfs interface below the randr
interface too. There is no reason other drivers can not simply do the
same.

It should be reasonable simple to let X provide internally a generic
sysfs backlight driver which can be wired up from individual drivers
like radeon.

> Unless we can convince Alex otherwise, we'll need a trivial
> ubacklight-type-daemon which is system activated for this hardware (or
> a polkit helper root program).

In any case, I rather see to have these systems not be able to control
their backlight with g-p-m, than to work around such rather simple
issues that way. :) We need to put some pressure on the people who are
in charge of solving these problems, and not try to work around them.
That was HAL's strategy, which was wrong on so many levels, and which
we absolutely need to avoid with the new stuff.

> The gnome-power-manager dep on HAL is
> just getting embarrassing.

That's so true. And it would be cool to see that solved the proper
way, but that would be X and not another interface.

Thanks,
Kay