http://bugzilla.kernel.org/show_bug.cgi?id=13091
Summary: No ac_adapter ACAD events on AC plug-in on HP dv6xxx
Product: ACPI
Version: 2.5
Kernel Version: 2.6.29.1
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Battery
AssignedTo: acpi_power-batt...@kernel-bugs.osdl.org
ReportedBy: seven.iss...@gmail.com
Regression: No
Created an attachment (id=20999)
--> (http://bugzilla.kernel.org/attachment.cgi?id=20999)
dmesg output
Distribution: ArchLinux
Hardware Environment: HP dv6540el (BIOS vers.: F.09)
Summary:
Hal/DeviceKit cannot recognize AC/DC unplugging due to *not* generated ACPI
event. This implies battery is always reported on-charge and, for example,
gnome-power-manager does not start updating statistics as remaining charge.
When AC adapter is plugged, it's correctly reported on /sys and /proc:
$ cat /sys/class/power_supply/ACAD/online
1
$ cat /proc/acpi/ac_adapter/ACAD/state
state: on-line
$ cat /sys/firmware/acpi/interrupts/gpe17
4280 enabled
On unpluggin' just ACPI battery event is generated:
$ acpi_listen
battery BAT0 00000080 00000001
So Hal/DeviceKit could not recognize AC adapter unplug event and do not update
AC state. AC is still reported online (by Hal/DevKit) even if /sys and /proc
are coherent to hardware:
$ cat /sys/class/power_supply/ACAD/online
0
$ cat /proc/acpi/ac_adapter/ACAD/state
state: off-line
$ cat /sys/firmware/acpi/interrupts/gpe17
4365 enabled
Plugging-in AC adapter again, various ACPI events are generated,
among them ac_adapter ACAD one:
$ acpi_listen
battery BAT0 00000081 00000001
ac_adapter ACAD 00000080 00000001
battery BAT0 00000080 00000001
battery BAT0 00000080 00000001
So Hal/DeviceKit can recognize plug event, only.
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