[CentOS] Disable hybernate/suspend in CentOS 7

[Ned Slider]

On 13/10/16 16:33, Valeri Galtsev wrote:
> Dear Experts,
>
> Could someone point me in the right direction: how can I disable
> hybernate/suspend in CentOS 7?
>
> I get workstations for graduate students with decent amount of RAM (32
> GB), and for machines with large RAM I either do not have swap at all of
> have some small (4 GB) swap. As I remember from older manuals, one has to
> have at least twice amount of swap compared to physical RAM for
> hybernate/suspend to work. This probably is what bit me: new Dells came
> with keyboard that has sleep button, when one hits that button the machine
> locks up. (it stays powered on, does not respond mouse, keyboard, does not
> respond ping).
>
> I would like to disable that sleep button on keyboard. (I'm kind of trying
> to avoid replacing keyboard with the ones that do not have "sleep" key).
>
> Thanks a lot for all your help!
>
> Valeri


You should be able to do this with PolicyKit:

https://access.redhat.com/solutions/33954

This solution is for RHEL6, but the same polkit rule should work on RHEL7.