http://bugzilla.kernel.org/show_bug.cgi?id=12350
Summary: Q45/Eaglelake chipset, S3 suspend resets box
Product: ACPI
Version: 2.5
KernelVersion: 2.6.28
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
AssignedTo: acpi_power-sleep-w...@kernel-bugs.osdl.org
ReportedBy: clem...@endorphin.org
On the new Intel Q45 chipset (Eaglelake) a simple
echo -n mem > /sys/power/state
means a system reset when hitting the power button to try to wake up. I assume
that not wakeup fails but going to sleep fails because of the following:
If I disable the PWRB wakeup by echo PWRB > /proc/acpi/wakeup, I still can
"wake up" the box by pressing the button. (wakeup here means to a rebooted
system). So I presume that the box is not in S3 but simply shut down. Otherwise
it should refuse to wake up.
This is on a plain Q45 box, no additional hardware.
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