UEFI BIOS and resume/suspend

Karl Auer kauer at biplane.com.au
Fri Aug 24 21:09:01 UTC 2012

On Fri, 2012-08-24 at 17:26 +0100, Colin Law wrote:
> If I write disabled to the file
> /sys/devices/pci0000:00/0000:00:1a.0/power/wakeup and then suspend the
> keyboard no longer triggers a resume.  I got the device code by
> unplugging and reinserting the keyboard and running dmesg.
> Unfortunately when I power cycle it gets set back to enabled, so there
> must be something writing to it at boot.  No idea what at the moment
> though.

The right way to manipulate the /proc filesystem is to use the sysctl
program. See "man sysctl".

The /proc filesystem is virtual; it's not on disk, so all your changes
will vanish on reboot.

To make desired changes permanent, edit /etc/sysctl.conf, or create a
new entry in /etc/sysctl.d (read the README there first).

Regards, K.

Karl Auer (kauer at biplane.com.au)

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