Messages in this thread |  | | From | pavel-velo@bug ... | Subject | RE: Re: Suggestion for laptop suspension | Date | Wed, 1 Jan 1997 19:06 -0800 |
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Hi!
>MY Sony Vaio 505TX has a similar behavior. What hasn't been clear to me >is how to mark memory as "unused". I had a theory that the APM BIOS >suspend code was checking if the memory was all zero's, and not writing >such pages to disk. This was a while ago, but a quick test didn't seem >to bear out this theory. > >I never had time to really take this much further, since using the >laptop "suspend and keep power to the memory" mode really doesn't take >that much battery power, so it wasn't worth my bothering to figure out >exactly how to trick the laptop into thinking a memory region didn't >need to be saved to disk. But this would be a good project for someone >who was interested to try to take up. One warning --- the technique by >which this is done may end up being very laptop-specific, or at least >dependent on a particular APM BIOS supplier.
There's completely generic solution called swsusp. It saves only occupied memory (of course) and works even on desktops. I suggest enhancing it is a much better project. Pavel > > - Ted >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >Please read the FAQ at http://www.tux.org/lkml/ > >
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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