On Sunday 22 April 2007 11:00, Carlos E. R. wrote: > The Sunday 2007-04-22 at 10:23 -0700, Randall R Schulz wrote: > > On Sunday 22 April 2007 10:08, Joseph Loo wrote: > > > I am thinking of building a myth tv system. I want to hibernate > > > my computer when it is not in use but wake up when it needs to > > > start recording or to use the box. Are there any programs or > > > facilities that allow this? > > > > I don't think a software solution is possible. You probably need > > some kind of timer hardware that can issue the necessary wake-up > > inducing signals. ... > > But there are exceptions: "wake on lan" ethernet cards. The card has > to be powered, at least, and I'm not sure if it will work with disk > hypernation, or only with suspended to memory mode. > > An alternative, is to connect a wake up line to the other computer, > having a binary outuput card close a relay in parallel with power on > switch - the normal power on/off button doesn't really disconnect the > power, you know, so this would not be handling mains current.
All those things are, as I said, hardware-driven or -dependent. > > I'd look for a mainboard and / or BIOSes that has a programmable > > wake-up timer. > > I wonder if there could be a way to program this from inside Linux? If the BIOS or some mainboard or compatible add-in hardware can produce the necessary wake-up conditions (and whatever other hardware requirements there are for resuming from hibernation are met), then almost certainly a driver could be written to convey the desired wake-up time settings to that timer hardware. On top of that a simple command-line tool and / or library routine to open that custom driver, issue the necessary ioctls for setting and reading the timer(s) and you've got all you need. > -- > Cheers, > Carlos E. R. Randall Schulz -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
