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    SubjectRe: Suspend and resume on ASUS Laptops
    Date
    On Sunday, December 04, 2011, Alan Stern wrote:
    > On Sat, 3 Dec 2011, Michal Jaegermann wrote:
    >
    > > On Sat, Dec 03, 2011 at 10:19:27AM -0500, Alan Stern wrote:
    > > > On Fri, 2 Dec 2011, Michal Jaegermann wrote:
    > > > >
    > > > > On my ASUS K52Jc these controllers are also reported "disabled". This
    > > >
    > > > What exactly do you mean by that?
    > >
    > > I mean that you asked Steven about a content of
    > > /sys/bus/pci/devices/0000\:00\:1[ad].0/power/wakeup
    > > On my ASUS K52Jc these ids also happen to belong to ehci_hcd devices
    > > (both "Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host
    > > Controller") and both 'wakeup' files show "disabled" too.
    >
    > Oh, sorry -- I didn't realize you meant the power/wakeup file contained
    > "disabled". It sounded like you were saying that the controllers were
    > somehow disabled.
    >
    > > With that above I have to do all these manipulations with unbinding
    > > and binding drivers and removing inserting modules or a laptop will hang
    > > after a suspend. Now with a recent kernel I need additionally put
    > > wireless driver modules on a "special handling" list or I will loose
    > > such connection (no hang here, just a dead driver).
    > >
    > > All of this looks like pretty consistent, from what one can find on the
    > > net, across various models of ASUS laptops.
    >
    > Yes, apparently ASUS's recent chipsets or firmware has a problem with
    > suspend and resume. On the other hand, I'm writing this on an ASUS
    > UL20A laptop, which suspends and resumes with no difficulty.

    I wonder, though, who figured out what quirk to use before suspend on those
    particular machines and on what basis (some information from the vendor or
    what?).

    Thanks,
    Rafael


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