UEFI BIOS and resume/suspend

Colin Law clanlaw at googlemail.com
Sat Aug 25 10:41:55 UTC 2012


On 25 August 2012 11:02, Karl Auer <kauer at biplane.com.au> wrote:
> On Sat, 2012-08-25 at 05:33 -0400, Tom H wrote:
>> >> On Fri, 2012-08-24 at 17:26 +0100, Colin Law wrote:
>> > $ sysctl devices.pci0000:00.0000:00:1a.0.power.wakeup
>> > sysctl: cannot stat
>> > /proc/sys/devices/pci0000:00/0000:00:1a/0/power/wakeup: No such file
>> > or directory
>> >
>> > I can't find the devices hierarchy anywhere under /proc/sys.
>>
>> If it doesn't exists under "/prc/sys/" it can't be modified by sysctl.
>
> It's under /proc, not under /proc/sys so Tom H is right, sysctl is not
> the right tool. Sorry about that, I didn't read carefully enough.
>
> Look at the existing upstart scripts in /etc/init, copy one of the
> simple ones to a name of your choosing, e.g colin.conf, and change it to
> set that control variable you found. You don't really need a "stop"
> task. Something like this (untested!):
>
>    # colin
>
>    description     "whatever you like"
>
>    start on runlevel [2345]
>
>    task
>
>    script
>
>    echo disabled > /sys/devices/pci0000:00/0000:00:1a.0/power/wakeup
>
>    end script
>
> The system will then set the variable for you by running the script on
> startup.

OK, thanks.  Thanks to Tom also

Colin

>
> Regards, K.
>
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> http://www.biplane.com.au/blog
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