https://bugzilla.kernel.org/show_bug.cgi?id=60812
Bug ID: 60812
Summary: crash or hard poweroff after switching from bat to ac
Product: ACPI
Version: 2.5
Kernel Version: 3.11
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Battery
Assignee: [email protected]
Reporter: [email protected]
Regression: No
If i switch my Asus Zenbook ux31e from AC to battery or back, it will freeze or
go off.
The freeze looks not like kernel panic. At least i was not able to trigger
kexec/kdump on it.
Poweroff is sort of hardware poweroff. At least, i had no power off string in
logs.
As workaround i use two methods:
1. suspend to ram, then plug or unplug AC. So it wont crush
2. or kill/stop all services polling acpi. For example acpid and upower.
I was able to use EHCI Debug port with DIY adapter made of two FX2 boards. See:
http://www.coreboot.org/DIY_EHCI_debug_dongle
But suddenly i haven't seen any last words of dying laptop :)
There is no know working kernel. So far i know this problem was always present,
but not 100% reproducible. For each test i need at least a day, to be sure if
there are some changes.
It seems to work on windows, and it affect some other users of this hardware:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/989191
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