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PostPosted: Sat Feb 18, 2012 4:37 am 
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Sophomore Member

Joined: Tue Jun 24, 2008 11:16 am
Posts: 135
Location: France (most of the time)
I am trying to find out how to power off and on UltraBay in my ThinkPad laptop. So far, I got halfway.

From this I discovered how to power it off:
https://github.com/linrunner/TLP/blob/master/tlp-functions
The command is
Code:
echo 1 > /sys/devices/platform/dock.2/undock

This file is write-only, by the way.

Now, I was looking for a method to power it back on here:
https://github.com/linrunner/TLP/blob/master/49bay
but I can't figure it out.

Simply doing
Code:
echo 0 > /sys/devices/platform/dock.2/undock

does nothing, and /sys/devices/platform/dock.2/docked is read-only. Permission denied. If I change it to rw, it does nothing.

Can someone give me a hand with it?

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W500 15.4" - C2D P9500, 8GB RAM, Samsung 830 SSD + 750GB Hitachi HDD, Intel+ATI GPU, bright WUXGA, FP-reader
Arch Linux, BTRFS, Serpent-XTS encryption


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