Re: EC interrupt mode by default breaks power button and lid button

[Gerhard Schrenk <deb.gschrenk@gmx.de>]

* Yu, Luming <luming.yu@intel.com> [2006-02-07 13:33]:
> >> Please don't revert that patch, and test kernel parameter ec_intr=0
> >
> >Yes, boot option ec_initr=0 helps power/lid buttons. (Tested with
> >yesterdays newest kernel from linus' tree.)
> 
> Any difference with ec_initr=1 with this kernel ?

No. Neither powerbutton nor lidbutton works with ec_initr=1.

> If pressing power button, can you see acpi interrupt increases?

Where do I find this? Do you mean interrupt 9 "IO-APIC-edge  acpi" in
/proc/interrupts?

With ec_initr=1 I don't see that interrupt 9 increases. 

--- tmp/ec1/interrupts	2006-02-07 14:31:54.000000000 +0100
+++ tmp/ec1/interrupts-after-powerbutton	2006-02-07 14:33:07.000000000 +0100
@@ -1,10 +1,10 @@
            CPU0       
-  0:      42181    IO-APIC-edge  timer
-  1:        446    IO-APIC-edge  i8042
+  0:      60423    IO-APIC-edge  timer
+  1:        676    IO-APIC-edge  i8042
   2:          0          XT-PIC  cascade
   9:          1    IO-APIC-edge  acpi
- 12:       2177    IO-APIC-edge  i8042
- 14:       6494    IO-APIC-edge  ide0
+ 12:       3221    IO-APIC-edge  i8042
+ 14:       6547    IO-APIC-edge  ide0
  16:          0   IO-APIC-level  uhci_hcd:usb5, i915@pci:0000:00:02.0
  17:          1   IO-APIC-level  Intel ICH6, ipw2200
  18:          0   IO-APIC-level  uhci_hcd:usb4
@@ -12,6 +12,6 @@
  20:          0   IO-APIC-level  yenta, Intel ICH6 Modem
  23:          0   IO-APIC-level  ehci_hcd:usb1, uhci_hcd:usb2
 NMI:          0 
-LOC:      42140 
+LOC:      60383 
 ERR:          0
 MIS:          0


With ec_initr=1 /proc/acpi/button/lid/LID0/state seems to work sane:

gps@medusa:~$ cat /proc/acpi/button/lid/LID0/state # lid opened
state:      open
gps@medusa:~$ sleep 5 && cat /proc/acpi/button/lid/LID0/state # closing lid quicker than 5 seconds
state:      closed

With ec_initr=0 (and acpid *stopped*) I see interrupt 9 increases.

--- tmp/ec0/acpid-off/interrupts	2006-02-07 14:40:55.000000000 +0100
+++ tmp/ec0/acpid-off/interrupts-after-powerbutton	2006-02-07 14:42:13.000000000 +0100
@@ -1,10 +1,10 @@
            CPU0       
-  0:      27910    IO-APIC-edge  timer
-  1:        375    IO-APIC-edge  i8042
+  0:      47228    IO-APIC-edge  timer
+  1:        599    IO-APIC-edge  i8042
   2:          0          XT-PIC  cascade
-  9:         27    IO-APIC-edge  acpi
- 12:        755    IO-APIC-edge  i8042
- 14:       6259    IO-APIC-edge  ide0
+  9:         28    IO-APIC-edge  acpi
+ 12:       2105    IO-APIC-edge  i8042
+ 14:       6465    IO-APIC-edge  ide0
  16:          0   IO-APIC-level  uhci_hcd:usb5, i915@pci:0000:00:02.0
  17:          1   IO-APIC-level  Intel ICH6, ipw2200
  18:          0   IO-APIC-level  uhci_hcd:usb4
@@ -12,6 +12,6 @@
  20:          0   IO-APIC-level  yenta, Intel ICH6 Modem
  23:          0   IO-APIC-level  ehci_hcd:usb1, uhci_hcd:usb2
 NMI:          0 
-LOC:      27872 
+LOC:      47191 
 ERR:          0
 MIS:          0

With ec_initr=0 and acpid *started* I see this change in /var/log/acpid

--- tmp/ec0/acpid-after-boot	2006-02-07 14:20:21.000000000 +0100
+++ tmp/ec0/acpid-after-powerbutton-and-lid-switch	2006-02-07 15:01:50.000000000 +0100
@@ -327,3 +327,20 @@
 [Tue Feb  7 14:13:41 2006] exiting
 [Tue Feb  7 14:18:44 2006] starting up
 [Tue Feb  7 14:18:44 2006] 8 rules loaded
+[Tue Feb  7 14:20:25 2006] received event "button/power PWRF 00000080 00000001"
+[Tue Feb  7 14:20:25 2006] executing action "/etc/acpi/actions/my_powerbtn.sh"
+[Tue Feb  7 14:20:25 2006] BEGIN HANDLER MESSAGES
+[Tue Feb  7 14:20:37 2006] END HANDLER MESSAGES
+[Tue Feb  7 14:20:37 2006] action exited with status 0
+[Tue Feb  7 14:20:37 2006] completed event "button/power PWRF 00000080 00000001"
+[Tue Feb  7 14:23:20 2006] received event "button/lid LID0 00000080 00000001"
+[Tue Feb  7 14:23:20 2006] executing action "/etc/acpi/actions/lm_lid.sh button/lid LID0 00000080 00000001"
+[Tue Feb  7 14:23:20 2006] BEGIN HANDLER MESSAGES
+[Tue Feb  7 14:23:20 2006] END HANDLER MESSAGES
+[Tue Feb  7 14:23:20 2006] action exited with status 0
+[Tue Feb  7 14:23:20 2006] executing action "/etc/acpi/actions/my_lid.sh button/lid LID0 00000080 00000001"
+[Tue Feb  7 14:23:20 2006] BEGIN HANDLER MESSAGES
+[Tue Feb  7 14:24:27 2006] END HANDLER MESSAGES
+[Tue Feb  7 14:24:27 2006] action exited with status 0
+[Tue Feb  7 14:24:27 2006] completed event "button/lid LID0 00000080 00000001"

Hope this helps
-- Gerhard
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