Re: Keys that generate ACPI events

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Marcelo Magno T. Sales wrote:
Hi, people

The Fn keys of my notebook do not generate scancodes, but ACPI events instead. I would like to map these events to X keysyms, so that the Fn keys are usable in X. How do I do that? The F8 kernel (2.6.23.1-49.fc8) and acpid get the ACPI events and logs messages like the following (F7 kernels and F7 acpid did not):
---------------------------------------------------------------------
Dec 3 18:17:23 home-03 acpid: received event "hotkey ATKD 00000050 00000000"
Dec  3 18:17:23 home-03 acpid: notifying client 2169[68:68]
Dec  3 18:17:23 home-03 acpid: notifying client 2354[0:0]
Dec 3 18:17:23 home-03 acpid: completed event "hotkey ATKD 00000050 00000000" Dec 3 18:17:23 home-03 acpid: received event "hotkey ATKD 00000051 00000000"
Dec  3 18:17:23 home-03 acpid: notifying client 2169[68:68]
Dec  3 18:17:23 home-03 acpid: notifying client 2354[0:0]
Dec 3 18:17:23 home-03 acpid: completed event "hotkey ATKD 00000051 00000000"
---------------------------------------------------------------------


Other Fn keys (the ones to control LCD brightness) produce errors like:
---------------------------------------------------------------------
Dec 3 18:17:34 home-03 kernel: ACPI Error (psargs-0355): [\_SB_.PCI0.P0P2.VGA_.LCDD] Namespace lookup failure, AE_NOT_FOUND Dec 3 18:17:34 home-03 kernel: ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0E] (Node f7d07f90), AE_NOT_FOUND Dec 3 18:17:35 home-03 kernel: ACPI Error (psargs-0355): [\_SB_.PCI0.P0P2.VGA_.LCDD] Namespace lookup failure, AE_NOT_FOUND Dec 3 18:17:35 home-03 kernel: ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_._Q0F] (Node f7d07fa8), AE_NOT_FOUND
---------------------------------------------------------------------

Is it possible to make these work?

Thanks,

Marcelo


The <FN>brightness keys work out of the box on all the laptops I have built. I am no help there.

As for using other keys, in GNOME, you can map keys with:

System/Preferences/Personal/Keyboard Shortcuts

Fedora 8 recognized my laptop volume controls without having to do this. :)

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