https://bugzilla.kernel.org/show_bug.cgi?id=54841
Summary: LID0 switch behaves badly after resume from suspend
Product: ACPI
Version: 2.5
Kernel Version: 3.7.9
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: Yes
Hello,
I noticed a regression when upgrading from 3.6.x to 3.7.x. The problem is
related to wakeup events.
I have a line in my boot scripts which disables wakeup from LID0 events, since
I don't want my system coming out of suspend when I open/close the lid. This
worked fine with 3.6.x but it doesn't seem work anymore with 3.7.x.
It works once, so if I reboot the system then I can go into suspend and lid
doesn't do anything. But after some more suspends (not always the second one),
the wakeup state seems to reset. However writing into /proc/acpi/wakeup doesn't
do anything.
Inspecting dmesg gives me this:
ACPI Error: Thread 923719504 cannot release Mutex [MUT0] acquired by thread
283920320 (20120711/exmutex-399)
ACPI Error: Method parse/execution failed [\_SB_.LID0._LID] (Node
ffff8801370a8f38), AE_AML_NOT_OWNER (20120711/psparse-536)
dpm_run_callback(): acpi_button_resume+0x0/0x18 returns -19
leena kernel: PM: Device PNP0C0D:00 failed to resume: error -19
Like I said, this worked with 3.6.x.
Greets,
Tobias
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