On Monday 11 January 2010 00:36:57 Renat Golubchyk wrote: > On Mon, 11 Jan 2010 00:09:48 +0200 Alan McKinnon > > <alan.mckin...@gmail.com> wrote: > > On Sunday 10 January 2010 23:40:57 Stroller wrote: > > > This was my reaction, too, but c'mon, Linux's sleep functionality > > > must have a rewake feature, mustn't it? > > > > I dunno. Think about this - in suspend, nothing is working and no > > user-code is running. The only power consumed is what is needed to > > refresh RAM. That must be there otherwise the content goes away if > > you try and resume. > > > > So what part of the machine is powered to be able to wake it up? PCs > > don't have alarm clocks, the on-board clock can't usually do it, so > > the only option is for some code to be running, polling the time and > > cause the system to wake up. Which is exactly what suspend does not > > do. > > Windows can do that and BIOS has such settings too. Those are > power management settings like "suspend to RAM after X minutes", > "hibernate after Y minutes". In order to hibernate it has to wake up > first, so there must be some place where a timer is set. > > And I have seen it done on Linux. I just never tried it myself.
Interesting. I haven't looked into that stuff in years, I must be way behind the times then :-) -- alan dot mckinnon at gmail dot com
