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Report KEY_BRIGHTNESSUP and KEY_BRIGHTNESSDOWN input events when the ThinkPad is in "passive brightness control" mode (because either we or ACPI video touched _BCL), and ACPI video is not processing these events by itself. This happens only on Lenovo ThinkPads with ACPI video support, when operating with the ACPI video driver in acpi_backlight=vendor mode. Issuing these events is the right thing to do, and will work around bugzilla #13368, if userspace is properly configured and actively handles these events. For other ThinkPads, and when ACPI video is handling brightness changes, thinkpad-acpi will continue NOT sending KEY_BRIGHTNESS* events by default. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com> |
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