After yesterday's discussion in the 'New BOINC project that does computing for COVID-19' thread and last night's discussion online, I decided to pursue Ralph's suggestion to use systemd to hibernate the machine.
I've started a new thread because this really has nothing to do with BOINC! Anyway, I started off by searching for systemd hibernate and found this: http://manpages.ubuntu.com/manpages/bionic/man8/systemd-suspend.service.8.html Amongst other things this says: 'Note that systemd-suspend.service, systemd-hibernate.service, and systemd- hybrid-sleep.service systemd-suspend-then-hibernate.service should never be executed directly. Instead, trigger system sleep states with a command such as "systemctl suspend" or similar.' So I searched for 'systemctl hibernate' and found quite a few complaints about this not working in Kubuntu and Ubuntu and it would seem to me, reading a number of pages, that these distros are not set up for hibernation by default. I haven't found an equivalent page for Kubuntu 18.10 (which I'm running), but this page for 18.04 sets out what needs to be done: https://askubuntu.com/questions/1031633/enable-hibernate-in-ubuntu-18-04-lts I'm still debating whether or not I should try this or simply use Suspend (to RAM). BTW. My laptop doesn't support Hibernate either, but I can recall doing on an old one that I had some years ago. (I've only run Kubuntu on my personal machine since around 2002, so it used to do it once.) -- Terry Coles -- Next meeting: Online, Jitsi, Tuesday, 2020-05-05 20:00 Check to whom you are replying Meetings, mailing list, IRC, ... http://dorset.lug.org.uk New thread, don't hijack: mailto:dorset@mailman.lug.org.uk
