On Friday, 6 October 2006 15:54, Stefan Seyfried wrote:
> Hi,
>
> i just had an idea :-)
>
> Is it possible, by using the uswsusp infrastructure, to freeze everything
> but the s2ram process during suspend to RAM?
Yup.
> I mean the following:
>
> start s2ram
> - chvt away from X
> - freeze everything else
> - save video state etc.
> - echo mem > /sys/power/state
ioctl(snapshot_fd, SNAPSHOT_S2RAM, 0)
> - post video etc.
> - thaw everything else
>
> When doing it this way, nothing could interfere with video POST (on some
> machines the VBE calls take some seconds, the user might already press
> ALT-F7 in the meantime), the whole video resume business would be "almost"
> in-kernel.
>
> Is this a good idea? Is it doable?
We'll need to save the video state to something like a swap file, but
otherwise it seems doable.
Greetings,
Rafael
--
You never change things by fighting the existing reality.
R. Buckminster Fuller
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