https://bugzilla.kernel.org/show_bug.cgi?id=100171
Bug ID: 100171
Summary: Unable to Wake the System Up from Suspend on Thinkpad
Helix 2
Product: ACPI
Version: 2.5
Kernel Version: 4.0.5
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Dean Stanton wrote
(https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1424088):
> Lenovo ThinkPad Helix is a "Convertable Ultrabook" with an Intel Core-M
> ("Broadwell")
> processor. The tablet can come off the dock-with-keyboard and latch to it as
> a cover.
> Attempting a suspend is apparently successful. The LED (on the back of the
> tablet >pulsates).
> But neither attaching the tablet in its open position nor pressing the power
> button will wake the system to resume. The LED continues to pulsate and the
> system continues to be unreachable by Ethernet.
> As a "workaround" I can suspend with pm-suspend-hybrid and then when it does
> not resume I can force power off and turn it back on. This causes it to thaw.
> None of the pm-action "quirk" options helped.
I can confirm the issue with Linux 4.0.5. It seems the ACPI event is not
accepted by the system?
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