Am 22.06.2016 um 09:32 schrieb Michał Kępień: >>> A backlight device is available via /sys/class/backlight/intel_backlight >>> and you can change brightness manually. AFAIK this device is provided by >>> the i915 driver. >> >> So perhaps the intent on other systems is to respond to the ACPI button >> notifications by manipulating the intel backlight hardware. If this is the >> case we'd need a way to do this from within the fujitsu-laptop driver in >> response to the buttons you've identified. > > Is implementing this in the kernel really worth the effort? I ended up > using xbacklight bound (in my window manager) to the brightness hotkeys > for both my Lifebook E744 and my Vostro V131, which has a royally borked > ACPI backlight control implementation. It seems using userspace helpers > for backlight control is the new normal [1]. Yes, you lose console > brightness control; I can live with that, YMMV. > > [1] https://www.spinics.net/lists/platform-driver-x86/msg07902.html The e7x6's DSTD misses the ACPI brightness control device (FUJ02B1), so the brightness part of the fujitsu-laptop driver isn't used and therefore - in addition to the direct brightness adjustment - generates no keycodes for the keys. A userspace keycode handling solution would be totally sufficient. Would be nice, if it worked in kernel but that's clearly optional for me. Regards, Jan-Marek -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
