On Saturday 15 November 2008, Matthew Garrett wrote: > On Sat, Nov 15, 2008 at 07:30:57PM +0300, Andrey Borzenkov wrote: > > 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. > > Right. But that doesn't mean they're competing, as such. If you set the > brightness via toshiba_acpi I probably have problems with expressing myself as non-native English speaker. I am not interested in setting values via echoing into sysfs file. I am interested in my desktop brightness control working out of the box. And desktop driver control has no way to select, which of two sysfs files to use. Nor do I understand why I have to create this problem of selecting right driver when I already have possibility to avoid it. If you think exposing both knobs is non-issue, why are all those patches for other vendor drivers included in the kernel in the first place? > to a value that isn't supported via the > acpi driver, what value does the acpi backlight claim to be at? >
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