Re: [gpm] some question about hotkeys on an IBM Thinkpad T42

[Paul Ionescu <i_p_a_u_l yahoo com>]

On Sat, 14 Jun 2008 14:51:34 +0100, Richard Hughes wrote:

> On Thu, 2008-06-12 at 11:57 +0000, Paul Ionescu wrote:
>> I have a Thinkpad T42 with Fedora 9 up to date that has hardware volume
>> keys (sound up/down and mute).
>> In Fedora 8, I had visual feedback (OSD) when I pressed the volume
>> keys, but not any more for Fedora 9.
> 
> Right, I'm guessing you're using a new thinkpad-acpi.

Yes, in Fedora 9 is a recent thinkpad-acpi.

> 
>> I had a look in /usr/share/hal/fdi/information/10freedesktop/30-keymap-
>> module-thinkpad-acpi.fdi and there are no mappings for the sound keys.
>> I know for sure that the keys were working in Fedora 8. Is there any
>> reason that the keys are not mapped anymore in Fedora 9 ?
> 
> Well, the ways the keys are mapped was changed. In F8, we relied on the
> conversion of acpi events to HAL ButtonPressed events. This is, and
> always was, a bit of a bodge. Now that F9 has brought the new
> thinkpad-acpi code that allows programmable buttons to be remapped we
> can do this properly; unfortunately this might mean adding stuff to the
> HAL xml files.
> 
>> If I manually add the keys in the .fdi file, the OSD work again, but it
>> should work by default.
> 
> Right - see the hal quirk site for instructions on how to submit them.

Ok, I'll have a look and will send a patch to you.

> 
>> Oh, and another thing is that the hardware "mute" button on this
>> thinkpad is not toggle, but only mute, so how can we properly configure
>> this as a mute only ?
> 
> Sure, that should just work when you map it - it seem to work for me on
> this T61 I'm using.

I already mapped the key to "mute" and it shows in X as XF86AudioMute, 
but the OSD does not behave as a mute only:
- when I press the mute button the OSD shows mute action, which is fine.
- when I press the mute button again, OSD shows un-mute action, which is 
wrong, because the key is a hardware mute only and the hardware mixer is 
still muted. To un-mute, I have to press either vol-up or vol-down.


P.S.
I discovered later that the "vendor" key which is mapped in g-p-m to 
"vendor", is not propagated further in X, so we cannot use it in X.
If I map the key to something else, like "help" or "www", then I can find 
the key events in X and map them. Is this just me, or you have the same 
problem ?
If the problem is general, I would send a patch to map the key to "help" 
key for instance, and be a usable key in X for everybody.


Thanks,
Paul

> 
> Hope that helps,
> 
> Richard.