I use slackware on X61 7675-4KU with kernel 2.6.23.8, thinkpad-acpi 0.18.
I just want to help confirm the issues about X61.
The 2 and 4 is true for X61. The Volume keys just mute or unmute. I can only use kmix to adjust the volume.
I monitor the log files /var/log/acpid, it shows that the volume keys not generate the ibm/hotkey event.
But i use tpb, in /var/log/messages, i got this
Nov 23 15:28:15 moon logger: Got TPB Event: Action mute, Parameter: off
Nov 23 15:28:27 moon logger: Got TPB Event: Action mute, Parameter: on
I dont know how to get the volume keycode such like KEY_VOLUMEDOWN.
The 3 is also true for X61. I use the first solution(brightness_enable=1 module parameter).
When i change the brightness,
two events occur:
ibm/hotkey HKEY 00000080 00001010
video LCD0 00000086 00000000
.
>From: Henrique de Moraes Holschuh <hmh@xxxxx> - 2007-10-30 17:29
>Here is some fresh information for Linux on the T61/R61 (and likely X61..
>untested). Someone with a T61 or R61 please test and update thinkwiki.
>
>First, you must be aware that your model works differently than older
>ThinkPads. The EC has different behaviour for various things.
>
>1. You *absolutely must use the latest BIOS* if you want the volume keys to
>work correctly. And you likely need to keep it up-to-date for a while
>yet, Lenovo is fixing things in these BIOS at a fast rate.
>
>2. Volume keys through thinkpad-acpi are *gone*, they are reported as
>regular volume keys over the standard keyboard, instead (this is good).
>They should be reporting KEY_VOLUMEDOWN, KEY_VOLUMEUP and KEY_MUTE (which
>are the standard keycodes for this). Please check this, and report back.
>
>3. Brighness support *requires* either thinkpad-acpi 0.18 with the
>brightness_enable=1 parameter, or a properly working ACPI video module.
>The use of the ACPI video module instead of thinkpad-acpi is recommended.
>
>4. Some reports lead me to think that the internal thinkpad volume mixer is
>*gone* in the T61/R61. If someone would be willing to help me test for
>its presence, just reply to this mail. You'll need to be confortable
>with ALSA to test for it.
>
>This means that hardare volume control is probably gone from the T61/R61,
>and it is now done completely on software (either by the BIOS poking
>directly at the HDA mixer, or by the desktop environment).
>
>--
>"One disk to rule them all, One disk to find them. One disk to bring
>them all and in the darkness grind them. In the Land of Redmond
>where the shadows lie." -- The Silicon Valley Tarot
>Henrique Holschuh
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