http://bugzilla.kernel.org/show_bug.cgi?id=12233
------- Comment #16 from no...@gmx.net 2008-12-19 01:25 ------- (In reply to comment #12) > First of all, it seems we can not control the backlight via ACPI video unless > there is a BIOS fixup. Yes it seems that the BQC etc methods required for acpi-video (<2.6.28) brightness control are not functional (external table seems to some unresolved imports etc.). The new IGD based control (>=2.6.28) is untested. fujitsu-laptop has another control mechanism which seems to work. > Second, the fujitsu driver can not catch the hotkey events, can it? > If it can, that's great, it can but it won't if acpi-video takes responsibility (seems to be partially the case here), fujitsu-laptop would also register a backlight device if acpi-video wasn't there. > if not, there is a acpi notifier chain which can sent out the hotkey event, > can > this be used by the fujitsu driver? In the (worst) case we have 3 events: a input event by fujitsu-laptop, an acpi event by fujitsu-laptop and an acpi vent by acpi-video. And I think there also comes userspace into play ... at least in my setup if gnome detects and brightness hotkey event via hal (both input event and acpi event) it tries to set the brightness as it thinks fit (and depending on hal version through the fujitsu-laptop platform device, the backlight device or the acpi-video platform device) -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ------------------------------------------------------------------------------ _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
