https://bugzilla.kernel.org/show_bug.cgi?id=62611
Bug ID: 62611
Summary: Laptop resumes right after suspend when on battery
Product: ACPI
Version: 2.5
Kernel Version: 3.9 - 3.11
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
Assignee: [email protected]
Reporter: [email protected]
Regression: No
I have a Sony Vaio Fit 14" (core i3, intel hd 4000). Since I got it in August,
I've been having this issue. If the laptop has been powered on connected to the
power supply, it suspends and resumes correctly. However, once I disconnect it
from the line, if I suspend it, it resumes immediately. Even if I connect it to
the power again, the problem persists until I reboot.
I think I found the source of the problem, since I was able to work it around.
cat /proc/acpi/wakeup
Device S-state Status Sysfs node
P0P1 S4 *disabled
EHC1 S3 *enabled pci:0000:00:1d.0
EHC2 S3 *enabled pci:0000:00:1a.0
XHC S3 *enabled pci:0000:00:14.0
RP01 S0 *disabled pci:0000:00:1c.0
PXSX S3 *disabled pci:0000:07:00.0
RP02 S3 *disabled pci:0000:00:1c.1
PXSX S4 *disabled pci:0000:08:00.0
RP03 S5 *disabled pci:0000:00:1c.2
PXSX S5 *enabled pci:0000:0e:00.0
PEG0 S3 *disabled
PEGP S3 *disabled
If I disable XHC wakeup support, the laptop keeps suspended. Its weird, since
no USB device has wakeup enabled:
cat /sys/bus/usb/devices/*/power/wakeup
disabled
disabled
disabled
disabled
disabled
disabled
disabled
disabled
PS: It may fail before 3.9, I didn't try.
Regards,
Alejandro
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