Cannot enter sleep mode as non-root user (Operation not permitted)

[Jason Hunt]

On Sun, Apr 17, 2016 at 12:30 AM, Ian Smith <smithi at nimnet.asn.au> wrote:

>
> I mentioned the suspend button kind-of jokingly, but now I'm curious:
>
> What make/model of laptop does not have a suspend (aka sleep) button?
>
> Or is it that yours does not work properly?
>

It's a Thinkpad x230 and I actually kind of forgot about the "sleep"
(quarter moon) icon on the F4 key; sure enough pressing Fn-F4 triggers
sleep mode.  Although within the last couple days I've discovered and set
hw.acpi.lid_switch_state=S3 so now I'm just closing the lid to trigger
sleep (which is how I normally configure it on other OS's/DE's, and works
for me since I never close the lid unless it's not in use.)

On the desktop there's no suspend button so I'm still using the "zzz"
shortcut there.  Although as I'm writing this I noticed
hw.acpi.power_button_state in acpi(4); setting this to S3 on the laptop
doesn't work (but I'm not worried about it as I already have three other
ways to suspend), but it works perfectly on the desktop (Asus P8B75-M
motherboard.)