[PATCH 01/10] ACPI: video: Ignore devices that aren't present in hardware

[Andy Whitcroft]

On Thu, Nov 20, 2008 at 11:18:45AM -0700, Tim Gardner wrote:

> ACK - if this commit really is intended to fix "brightness changes twice
> when using hotkeys". I assume it does so by avoiding duplicate devices,
> one of which is bogus?

Yes that is correct.  We end up with two ACPI events one for each
possible adapter, which leads to the double jumps on these machines.
Suppressing the non-existant ones sorts that out.

-apw