Latest working kernel version:2.6.22 Earliest failing kernel version: Distribution: Mandriva Hardware Environment: Sony vaio fz315s Problem Description: When the ac_adapter is disconnected, acpi in theory should generate 2 events, ac_adapter AC 00000080 00000000 battery BAT0 00000080 00000001 but in my case it only generates the BAT0 event. Steps to reproduce: Install a 2.6.24 kernel, execute acpi_listen and plug/unplug the ac_adapter.
Created attachment 16137 [details] dmesg output
Created attachment 16138 [details] lshw output
Created attachment 16139 [details] acpidump (real) output
> When the ac_adapter is disconnected, > acpi in theory should generate 2 events, > > ac_adapter AC 00000080 00000000 > battery BAT0 00000080 00000001 The DSDT for this machine does have an AC Adapter. It is callled "ADP1", matching the (arbitrary) example in the ACPI spec, rather than "AC" in the example above. Device (ADP1) { Name (_HID, "ACPI0003") Method (_PSR, 0, NotSerialized) { If (LEqual (ECON, Zero)) { And (PHSB (0xD4, Zero), 0x80, Local0) } Else { Store (^^PCI0.LPCB.EC.RPWR, Local0) } If (LEqual (Local0, Zero)) { Return (Zero) } Else { Return (One) } } Method (_PCL, 0, NotSerialized) { Return (_SB) } } There is a single place in the AML where a notify is sent to Device(ADP1) -- GPE21. you should be able to see what GPE fires on AC/DC events with grep . /sys/firmware/acpi/interrupts/* and watching which one increments. (2.6.25 and later) Hopefully it is gpe21 (hex). Method (_Q21, 0, NotSerialized) { P8XH (Zero, 0x21) Store (RPWR, PWRS) Notify (ADP1, 0x81) Notify (BAT0, 0x80) PNOT () } The problem here may be that the AML is sending 0x81 when the ac driver expects 0x80. If CONFIG_ACPI_DEBUG=y, then ac will print a message when it receives an unknown notify value.
Created attachment 16152 [details] patch vs 2.6.26-rc2 please try this patch
Hi, this patch work perfectly! I tested it with all my laptops and it works very well. A note, I tested it under 2.6.24 kernel. Thanks!
len, I think this bug can be closed. :)
patch in comment #5 applied to acpi-test
shipped in linux-2.6.26-rc7 commit f163ff5176a8e9c827d8ebe044710d67d40799c3 Author: Len Brown <len.brown@intel.com> Date: Sat Jun 14 01:26:37 2008 -0400 ACPI: no AC status notification
*** Bug 10511 has been marked as a duplicate of this bug. ***