ubuntu 11.04 / laptop sony vaio vpcy11S1E: wireless

1. Wireless doesn’t work from the start. Here is the solution, which is that:

   gksudo gedit /etc/modprobe.d/acer-wmi
   options acer-wmi wireless=1
   sudo modprobe acer-wmi

2. The control buttons for brightness of the display [Fn - F5, F6] do not work. The solution remains the same (i’ve lost the source, from where I did steal this): two files shall be created in /etc/acpi/ directory:
   /etc/acpi/sony_brightness_up.sh:

   #!/bin/bashCONST_ADD=32
   
   #get current value and convert it from hex to decimal
   BRIGHT_VAL=$((0x$(setpci -s 00:02.0 F4.B)))
   
   #increase it
   BRIGHT_VAL=$(( $BRIGHT_VAL + $CONST_ADD ));
   
   if test "$BRIGHT_VAL" -gt 255 ;
   then BRIGHT_VAL=255
   fi
   
   #convert in hex
   HEX_VAL=$(dc -e "$BRIGHT_VAL 16 o p")
   
   #set new val
   #echo $HEX_VAL
   setpci -s 00:02.0 F4.B=$HEX_VAL

   … and /etc/acpi/sony_brightness_down.sh:

   #!/bin/sh
   
   CONST_ADD=32
   
   #get current value and convert it from hex to decimal
   BRIGHT_VAL=$((0x$(setpci -s 00:02.0 F4.B)))
   
   if test "$BRIGHT_VAL" -le "$CONST_ADD" ;
   then BRIGHT_VAL=$(( $CONST_ADD + 1 ))
   fi
   
   #decrease it
   BRIGHT_VAL=$(( $BRIGHT_VAL - $CONST_ADD ));
   
   #convert in hex
   HEX_VAL=$(dc -e "$BRIGHT_VAL 16 o p")
   
   #set new val
   setpci -s 00:02.0 F4.B=$HEX_VAL

   … and two files in /etc/acpi/events directory:
   /etc/acpi/events/sony-brightness-down:

   # /etc/acpi/events/sony-volume-down
   
   event=sony/hotkey SNC 00000001 00000010
   action=/etc/acpi/sony_brightness_down.sh

   … and /etc/acpi/events/sony-brightness-up:

   b/s/README  ~/b/s/e/sony-brightness-up                                          X
   # /etc/acpi/events/sony-volume-down
   
   event=sony/hotkey SNC 00000001 00000011
   action=/etc/acpi/sony_brightness_up.sh

   … then restart.

Tags: drivers, laptop, sony vaio, wifi