ThinkPad X61s functions keys

[Dan Langille]

Alberto Rizzi wrote:
> Dan Langille ha scritto:
>> Hi,
>>
>> Running FreeBSD 7.0-RELEASE on a ThinkPad X61s.
>>
>> Some keys do not work:
>>
>> - volume adjustment
>> - screen brightness (FN HOME, FN END)
>>
>> The keyboard light does work (FN-PgUp) as does
>> Numeric Lock (FN ScrLk).
>>
>> What can I do to help diagnose the issue so we can get these
>> functions working?
>>
> Have the same problem with a Thinkpad T61
> If you read man acpi_ibm there is a partial solution
> 
> You have to load acpi_ibm at boot. Add
> acpi_ibm_load="YES"
> to /boot/loader.conf

$ kldstat
Id Refs Address            Size     Name
  1   10 0xffffffff80100000 ac6c08   kernel
  2    1 0xffffffff80bc7000 1a670    snd_hda.ko
  3    2 0xffffffff80be2000 673b8    sound.ko
  4    1 0xffffffff80c4a000 53d0     acpi_ibm.ko
  5    1 0xffffffffb1694000 4b61     i915.ko
  6    1 0xffffffffb1699000 d5d8     drm.ko


> Then activate event passing to devd. Add
> dev.acpi_ibm.0.events=1
> to /etc/sysctl.conf

$ sysctl dev.acpi_ibm.0.events
dev.acpi_ibm.0.events: 1


> 
> Then tell devd that you want to get events. Add
> notify 10 {
>     match "system"        "ACPI";
>     match "subsystem"     "IBM";
>     action "/usr/local/sbin/acpi_oem_exec.sh $notify ibm";

It seems that this script is never invoked.

> }
> 
> to /etc/devd.conf
> 
> Now you have to create that script
> ----------
> #!/bin/sh
> NOTIFY=`echo $1`
> ECHO="echo"
> CALC="bc"
> 
> case ${NOTIFY} in
>     0x10)
>         LEVEL=`sysctl -n dev.acpi_ibm.0.lcd_brightness`
>         PERCENT=`${ECHO} "${LEVEL} + 1" | ${CALC}`
>         MESSAGE="brightness level ${PERCENT}"
>         sysctl dev.acpi_ibm.0.lcd_brightness=${PERCENT}
>         ;;
>     0x11)
>         LEVEL=`sysctl -n dev.acpi_ibm.0.lcd_brightness`
>         PERCENT=`${ECHO} "${LEVEL} - 1" | ${CALC}`
>         MESSAGE="brightness level ${PERCENT}"
>         sysctl dev.acpi_ibm.0.lcd_brightness=${PERCENT}
>         ;;
>     *)
>         ;;
> esac
> echo `date` >> /tmp/prova
> ${ECHO} ${LEVEL} ${NOTIFY} ${MESSAGE} >> /tmp/prova
> exit 0   
> 
> -------
> If you leave the last two debug line, with a tail -f /tmp/prova you can 
> check the events sent to devd.

Nothing hits /tmp/prova

I ran this loop while pressing keys:

while true; do clear; sysctl dev.acpi_ibm.0; date; sleep 1; done

dev.acpi_ibm.0.%desc: IBM ThinkPad ACPI Extras
dev.acpi_ibm.0.%driver: acpi_ibm
dev.acpi_ibm.0.%location: handle=\_SB_.PCI0.LPC_.EC__.HKEY
dev.acpi_ibm.0.%pnpinfo: _HID=IBM0068 _UID=0
dev.acpi_ibm.0.%parent: acpi0
dev.acpi_ibm.0.initialmask: 2060
dev.acpi_ibm.0.availmask: 16777215
dev.acpi_ibm.0.events: 0
dev.acpi_ibm.0.eventmask: 2060
dev.acpi_ibm.0.hotkey: 3491
dev.acpi_ibm.0.lcd_brightness: 0
dev.acpi_ibm.0.volume: 7
dev.acpi_ibm.0.mute: 0
dev.acpi_ibm.0.thinklight: 0
dev.acpi_ibm.0.bluetooth: 0
dev.acpi_ibm.0.wlan: 1
dev.acpi_ibm.0.fan_speed: 3815
dev.acpi_ibm.0.fan_level: 0
dev.acpi_ibm.0.fan: 1
dev.acpi_ibm.0.thermal: 41 47 47 38 33 -1 30 -1
Sat Mar 29 09:30:09 EDT 2008


I can get dev.acpi_ibm.0.thinklight to change when turning off/on the think 
light.

I can get dev.acpi_ibm.0.hotkey to change between two values: 2467 and 3491

That's it.  Nothing else.

> With this script you can change the brightness both under console and 
> under xorg but you are bound to 8 levels (0 - 7)
> If you want 100 levels you can use xbacklight under xorg only and modify 
> the script to use xbacklight instead of sysctl
> 
> Mute and volume keys don't send events to devd: I don't know why but if 
> I press mute it works and dev.acpi_ibm.0.mute becomes 1
> If I press volume up or down, dev.acpi_ibm.0.mute becomes 0