On Thursday 13 November 2008, Matthew Garrett wrote: > On Thu, Nov 13, 2008 at 07:58:09AM +0300, Andrey Borzenkov wrote: > > > - exposing two knobs for the *same* thing confuses user level tools; you never > > know which one is used and they compete behind your back > > How do they compete? In my case user level program (kpowersave) decided to use video.ko for brightness control (or, may be, it used them both). Which gave me 2 levels instead of 8. And there is no way to control it, at least known to me. Have you looked at link I posted in previous message? > As I said, the implementations appear to be > implemented on top of the same underlying functionality. I have no idea and do not care how it is implemented internally. The fact is, going via ACPI _BCM gives me 2 levels (three if zero counts). Going via proprietary HCI gives 8. > The problem > with providing both vendor and ACPI functionality comes when both use > different mechanisms for changing the backlight and so can get out of > sync with each other. Are there any machines supported by toshiba_acpi > where this is the case? > Yes. Mine and Len's at least :)
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