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    Subject2.6.20-rc3 regression: suspend to RAM broken on Mac mini Core Duo
    Hi folks,

    I tried 2.6.20-rc3 and suspend to RAM is now broken. The screen stays
    dark after resume, the same with the network link. It worked with
    2.6.18 (I skipped 2.6.19 because of a regression in the sky2 driver).

    I enabled pm_trace and did a echo mem > /sys/power/state in single user
    mode.

    After the reboot, all I got from pm_trace is this:

    ACPI: (supports S0 S3 S4 S5)
    Magic number: 0:798:636
    hash matches drivers/base/power/resume.c:46
    Freeing unused kernel memory: 228k freed

    This is line 46 in resume.c:

    TRACE_RESUME(error);

    No information about the device/driver that refuses to resume.

    I think that this is a regression, as it worked with 2.6.18 and the
    kernel config is the same. The hardare is a Mac mini Core Duo.

    Regards,
    Tino
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