Lenovo Ideapad Y450

Refered to this one
http://axcoto.com/blog/article/tag/siocsifflags-operation-not-possible-due-to-rf-kill
install rfkill to solve ths problem

I have the same problem here. But I found that this code(http://www.spinics.net/lists/linux-acpi/msg29795.html) actually made bluetooth & wifi devices to work on my Y450.

I'm not sure whether I was doing it the right way, but. Having the code included in 2.6.33 kernel source and rebuild the kernel works for me.

Still looking for a simpler solution though :(

here are my acpi auto scripts.. enjoy!!
some bits are stolen from random people.. but works great on my y450

#######################################battery.sh#################################
#!/bin/sh

LCD_AC=8
LCD_BAT=3
# spindown time for HD (man hdparm for valid values)
# I prefer 10 mins for acad and 5 mins for batt
ACAD_HD=120
BATT_HD=60

# battery event handler

last_status=`cat /var/db/acpi.lastpower`
status=`awk '/^state: / { print $2 }' /proc/acpi/ac_adapter/ACAD/state`

echo $status > /var/db/acpi.lastpower

if [ $4 = 00000001 ]; then

      ac_plug="plugged"

else

      ac_plug="un-plugged"

fi

logger “ACPI: Triggered with $1/$2 $3 $4 $5 $6”
logger “ACPI: AC Status $status detected… was $last_status..”

if [ $ac_plug = “plugged” ] & [ $last_status = “on-line” ]; then

      logger "ACPI: False Trigger.. Ignoring.."
      #We Ignore false plugged in alerts when already plugged in
      exit 0

fi

case $status in

      "on-line")
              logger "Setting HD spindown to $(($ACAD_HD/60)) mins and adjusting brightness"
              /sbin/hdparm -S $ACAD_HD /dev/sda > /dev/null 2>&1
              echo -n $LCD_AC > /sys/class/backlight/acpi_video0/brightness 
              echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor 
              echo performance > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
              exit 0
      ;;
      "off-line")
              logger "Setting HD spindown to $(($BATT_HD/60)) minute and adjusting brightness"
              echo -n $LCD_BAT > /sys/class/backlight/acpi_video0/brightness 
              /sbin/hdparm -S $BATT_HD /dev/sda > /dev/null 2>&1
              echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
              echo ondemand > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
              exit 0
      ;;
      "*")
              logger "Something weird happened.. $status"
              exit 1
      ;;

esac
''``
###################################lidbutton.sh#############################
#!/bin/sh

# Laptop lid closed; shut down gracefully
# (need to implement “standby” mode instead)

# Only shutdown if running on battery; otherwise turn off lcd
# Get radeontool from: http://fdd.com/software/radeon/

lid_status=`awk '/^state:/ { print $2 }' /proc/acpi/button/lid/LID/state`
batt_status=`awk '/^charging state:/ { print $3 }' /proc/acpi/battery/BAT1/state`
X_running=`ps ca | awk '/X/ { print $1 }'`

logger “ACPI: Triggered with $1/$2”
logger “ACPI: Lid Detected as $lid_status action begining…”
if [ $X_running > 0 ]; then

      logger "ACPI: X seems to be running.. I'll assume it will handle this.."
      exit 0

fi

case $lid_status in

      "closed")
              if [ -n $batt_status -a $batt_status = "discharging" ] ; then
                      sync
                      echo disk > /sys/power/state 
              else
                      sync
                      echo mem > /sys/power/state
              fi
              exit 0
      ;;
      "open")
              exit 0

##############################################################################

############################brightness.sh#####################################
#!/bin/sh

current_brightness=`cat /sys/class/backlight/acpi_video0/brightness`

logger “ACPI: Brightness Adjustment Detected..”

case $3 in

      "00000086")
      echo -n $(($current_brightness++ )) > /sys/class/backlight/acpi_video0/brightness 
      ;;
      "00000087")
      echo -n $(($current_brightness-- )) > /sys/class/backlight/acpi_video0/brightness 
      ;;

esac
#########################################################################

try iwlagn driver and wpa_supplicant .And it works on my Y450:-)

Hi, I have one of these and have had incredible problems getting the wireless to work. For whatever reason, no matter what the state of the wireless switch on the case, rfkill says that the wifi is hard blocked. This is frustrating since wireless networking is one of the most important capabilities for a notebook.

Also about half of the multimedia keys at the top don't work (which for the most part is fine, since they just do annoying bullshit). I think that one of them may be responsible for enabling/disabling wifi, but it could be that it just isn't getting caught.