Bug 14115

Summary:	HP dv2910us EC errors
Product:	ACPI	Reporter:	Ryan Underwood (nemesis)
Component:	EC	Assignee:	ykzhao (yakui.zhao)
Status:	CLOSED DUPLICATE
Severity:	normal	CC:	acpi-bugzilla, astarikovskiy, lenb, yakui.zhao
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.31-rc8	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	acpidump acpidump acpi -V dmidecode dsdt.dsl DSDT compile warnings EC log with #define DEBUG showing the event /proc/interrupts /proc/ioports lspci -vxxx dmesg at startup

Description Ryan Underwood 2009-09-04 03:41:43 UTC

My DSDT has errors in it that can be fixed, but runtime DSDT replacement is no longer available.

The basic problem is the following message:
[ 7756.412107] ACPI: EC: missing confirmations, switch off interrupt mode.

Followed 500ms afterwards by
[ 7756.913187] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] 20090521 evregion-424
[ 7756.913216] ACPI Error (psparse-0537): Method parse/execution failed [\_TZ_.TZS0._TMP] (Node ffff88013ba2a520), AE_TIME

The fan control of the laptop sometimes acts berserk, spinning up then down again repeatedly.  Other than that, I guess the only problem is the (theoretical) CPU usage of polling mode.

Comment 1 Ryan Underwood 2009-09-04 03:47:20 UTC

Created attachment 22994 [details]
acpidump

Comment 2 Ryan Underwood 2009-09-04 03:48:04 UTC

Created attachment 22995 [details]
acpidump

Comment 3 Ryan Underwood 2009-09-04 03:48:18 UTC

Created attachment 22996 [details]
acpi -V

Comment 4 Ryan Underwood 2009-09-04 03:48:32 UTC

Created attachment 22997 [details]
dmidecode

Comment 5 Ryan Underwood 2009-09-04 03:48:53 UTC

Created attachment 22998 [details]
dsdt.dsl

Comment 6 Ryan Underwood 2009-09-04 03:49:08 UTC

Created attachment 22999 [details]
DSDT compile warnings

Comment 7 Ryan Underwood 2009-09-04 03:49:46 UTC

Created attachment 23000 [details]
EC log with #define DEBUG showing the event

Comment 8 Ryan Underwood 2009-09-04 03:50:00 UTC

Created attachment 23001 [details]
/proc/interrupts

Comment 9 Ryan Underwood 2009-09-04 03:50:16 UTC

Created attachment 23002 [details]
/proc/ioports

Comment 10 Ryan Underwood 2009-09-04 03:50:31 UTC

Created attachment 23003 [details]
lspci -vxxx

Comment 11 Ryan Underwood 2009-09-04 03:57:07 UTC

Created attachment 23004 [details]
dmesg at startup

Comment 12 Alexey Starikovskiy 2009-09-04 07:59:02 UTC

Please check if patch in http://bugzilla.kernel.org/attachment.cgi?id=22911
helps.

Comment 13 Ryan Underwood 2009-09-04 12:55:26 UTC

No, this problem occurs with or without that patch.  (It was also my bug)

Comment 14 ykzhao 2009-09-29 05:53:47 UTC

this issue is also related with EC AE_TIME.
So this bug will be marked as the dup of bug 13055.

*** This bug has been marked as a duplicate of bug 13055 ***