Hi,

I have fooled myself. The proc file indeed just gives some status
output. And I didn't open it in a text editor...

On http://www.pixelbeat.org/docs/bios/ it is written: "Note you may need
to sudo modprobe nvram to make this device available on your linux
system, and you can confirm the driver is loaded by the presence of the
/proc/driver/nvram file which represents some legacy CMOS parameters."
... "one can copy the settings with the dd if=/dev/nvram of=nvram.saved
command. If your other machines have exactly the same BIOS settings then
it's trivial to copy them to the other machines with the dd
of=/dev/nvram if=nvram.saved command."

To read out the nvram just do this with the /dev/nvram file (not
/proc/driver/nvram !):

michael@ideapad:~/nvram$ sudo modprobe nvram
michael@ideapad:~/nvram$ sudo cat /dev/nvram > nvram
michael@ideapad:~/nvram$ ll
total 4
-rw-r--r-- 1 michael michael 114 2012-10-16 20:47 nvram
michael@ideapad:~/nvram$ less nvram 
"nvram" may be a binary file.  See it anyway? 
michael@ideapad:~/nvram$ hexdump -C nvram 
00000000  00 00 00 42 00 a2 03 79  02 00 fc 00 00 74 24 60  |...B...y.....t$`|
00000010  6e 23 20 42 98 47 12 20  30 04 c5 91 7e f9 03 e0  |n# B.G. 0...~...|
00000020  09 3e 00 fc 20 cc cf f9  01 00 00 06 ea e3 30 00  |.>.. .........0.|
00000030  00 60 3b f9 05 94 28 80  ca 06 0a 00 00 00 00 00  |.`;...(.........|
00000040  40 db 16 00 78 0a 92 ff  ff 1f b0 00 07 f4 01 06  |@...x...........|
00000050  01 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000060  00 00 db 80 10 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000070

Looks better.

** Attachment removed: "nvram image of my laptop (BIOS version 2ACN21WW) after 
WLAN has been enabled using the workaround"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/577114/+attachment/3207111/+files/nvram-2ACN21WW-2012-06-28-wlan-working-after-workaround.nvram

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https://bugs.launchpad.net/bugs/577114

Title:
  Wireless and Bluetooth switch does not work correctly on lenovo
  ideapad s10-3

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