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    SubjectRe: [Suspend-devel] 2.6.25-rc2 System no longer powers off aftersuspend-to-disk. Screen becomes green.

    On Fri, 22 Feb 2008, Ingo Molnar wrote:
    > btw., why isnt there an in-kernel whitelist, with perhaps a dynamic,
    > convenient /debug/s2r/whitelist append-API for distros (and testers) to
    > add more entries to the whitelist/blacklist? (for cases where the kernel
    > whitelist has not caught up yet) Which would eventually converge to
    > Utopia: s2ram that just works out of box.

    The big problem with that is
    - the people who know about the devices are usually not kernel people
    - the workarounds that the whitelist requires is quite often not a kernel

    In other words, the most common workarounds for the s2ram whitelist is
    usually to do things like running vbetool in user-level to do VGA register
    save/restore (VBE_POST and VGE_SAVE). Sure, the kernel could do that with
    usermodehelper etc, but s2ram also has those things as command line flags
    etc, so...


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