FreeBSD on Thinkpad X61

• I am using RELENG_7
• kernel config
• additional modules loaded at startup (/boot/loader.conf)

  acpi_ibm_load="YES"
  acpi_dock_load="YES"
  
  # soundcard
  snd_hda_load="YES"
  

• changes to Xmodmap (put into ~/.Xmodmap):

  ! fix left Win key
  keycode 115=Super_L
  add Mod4 = Super_L
  
  ! enbale Volume control keys
  keycode 174 = XF86AudioLowerVolume
  keycode 176 = XF86AudioRaiseVolume
  

• xorg.conf
• the internal and external screen can be nicely controlled with xrandr
• Powerd cannot decrease the frequency if it start at 1600. The reason is htat the two highest frequencies are 1601 (or 1600) which screws up powerd's logic. A possible workaround is the following patch:

  --- powerd.c.orig       2007-10-23 21:04:56.000000000 +0200
  +++ powerd.c    2007-10-23 21:10:30.000000000 +0200
  @@ -608,6 +608,9 @@
                  } else if (idle > (total * cpu_idle_mark) / 100 &&
                      curfreq > freqs[numfreqs - 1]) {
                          i++;
  +                       /* Thinkpad X61 workaround */
  +                       if (i == 1)
  +                               i = 2;
                          if (vflag) {
                                  printf("idle time > %d%%, decreasing clock"
                                      " speed from %d MHz to %d MHz\n",
  

• using the keyboard shortcuts to control the brightness
  add to or uncomment in /etc/devd.conf

  notify 10 {
          match "system"          "ACPI";
          match "subsystem"       "IBM";
          action "/usr/local/sbin/acpi_oem_exec.sh $notify ibm";
  };
  

  • /usr/local/sbin/acpi_oem_exec.sh (slightly modified from acpi_ibm(4))
• I'm now using power_profile instead of powerd and have hardcoded the settings in /etc/rc.d/power_profile.
  on battery:

  sysctl dev.cpu.0.freq=800
  sysctl hw.acpi.cpu.cx_lowest=C3
  sysctl dev.cpu.0.cx_lowest=C2
  sysctl dev.cpu.1.cx_lowest=C3
  sysctl dev.acpi_ibm.0.lcd_brightness=4
  

  
  on ac:

  sysctl dev.cpu.0.freq=1601
  sysctl hw.acpi.cpu.cx_lowest=C1
  sysctl dev.cpu.0.cx_lowest=C1
  sysctl dev.cpu.1.cx_lowest=C1
  sysctl dev.acpi_ibm.0.lcd_brightness=7
  

Not working:

• DRI -- supported by X11, but the kernel does not seem to create the neccessary device nodes.
• built-in wireless card, Intel 4965AGN -- I have also tried with OpenBSD, which has a driver for this device, but could not connect to any access point. However, the wireless card works with linux.
• suspend to RAM -- at least resuming is a problem