[ltp] HOWTO - acpid and ibm-acpi on a T42p

[Lenz Grimmer]

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Hi,

On Wed, 15 Dec 2004, morpheus wrote:

> > If you want to enable the Fn-Keys, make sure to also pass 
> > "hotkey=enable" to the ibm_acpi module (either as an option to 
> > modprobe or by adding it to /etc/modprobe.conf
>
> Yes, you are right...the ibm_acpi README is a bit vague on this, but if
> you want access to specific hotkeys, you can do:
> echo enable > /proc/acpi/ibm/hotkey
> echo 0xffff > /proc/acpi/ibm/hotkey
> after modprobe ibm_acpi
> 
> (where ffff is a bitmask for the keys as described in the README)

I think it's simpler to put it in modprobe.conf, so it's automatically 
enabled once the module is loaded:

  options ibm_acpi experimental=1 hotkey=enable,0xffff

I placed this into /etc/modprobe.conf.local on my SUSE 9.2 system.

> Cool, I didn't know that you could get status by not specifying any
> options.

Yes, I was not aware of it either for quite some time :)

> My method has the disadvantage that if the light comes back on by 
> itself, the file isn't deleted so you must press Fn-F3 twice next time 
> to turn it off again.  The disadvantage of your method is if radeontool 
> doesn't return the proper value (i.e. always returns "on" even when it's 
> "off") you can never get it to come back.  Have you found the radeontool 
> light status value to always be accurate?  The "appears to be" is kind 
> of scary...

So far it has never failed on me.

Bye,
	LenZ
- -- 
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 Lenz Grimmer <lenz@grimmer.com>                             -o)
 [ICQ: 160767607 | Jabber: LenZGr@jabber.org]                /\\
 http://www.lenzg.org/                                       V_V
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