https://bugzilla.kernel.org/show_bug.cgi?id=201987
Bug ID: 201987
Summary: GPE 0X66 keeps on firing in late suspend phase, thus
break suspend-to-idle - HP Zhan 66
Product: ACPI
Version: 2.5
Kernel Version: v4.19
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 279997
--> https://bugzilla.kernel.org/attachment.cgi?id=279997&action=edit
pm-graph output on HP Zhan 66 laptop, with kernel 4.20-rc4
On a HP KBL-R platform, model name Zhan 66, it is found that the system can not
enter deep c state during suspend-to-idle.
And the rootcause is that GPE 0X66 keeps on firing in the suspend_noirq phase,
causing the system keeps on waking up to handle the ACPI interrupt. Thus,
s2idle_enter() is never invoked in s2idle_loop().
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