Re: LID switch and /dev/input/event*

[Zhao Yakui <yakui.zhao@intel.com>]

On Sat, 2008-08-23 at 23:43 +0200, Németh Márton wrote:
> Hi,
> 
> I am using Linux 2.6.27-rc4 on Clevo D410J laptop and the I can
> query the LID switch state like this:
> 
> # cat /proc/acpi/button/lid/LID/state
> state:      open
> # cat /proc/acpi/button/lid/LID/state
> state:      closed
> 
> If I check the event4, I get no events when the LID switch is pushed:
> 
> # evtest /dev/input/event4
> Input driver version is 1.0.0
> Input device ID: bus 0x19 vendor 0x0 product 0x5 version 0x0
> Input device name: "Lid Switch"
> Supported events:
>   Event type 0 (Sync)
>   Event type 5 (?)
>     Event code 0 (?)
> Testing ... (interrupt to exit)
It seems that the status of LID device is correct, but there is no LID
input event. Right?
Will you please enable the CONFIG_ACPI_DEBUG in kernel configuration and
boot the system with the option of "acpi.debug_layer=0x00090004
acpi.debug_level=0x01f"? 
After pressing the LID switch several times, please attach the output of
dmesg.

It will be great if you can attach the output of acpidump.

Of course you can open a new bug in bugzilla and attach the output of
dmesg, acpidump.

http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI

Thanks.

> 
> The events are only reported if I suspend to RAM with "s2ram -f -p -s". I did
> the following steps:
> 
> 1. Execute "s2ram -f -p -s". Now the system suspends to RAM.
> 2. Push the LID switch and hold it down.
> 3. Wake the system with the POWER button.
> 4. After the system is up, release the LID switch to see the screen.
> 5. "evtest" reports the following line:
> 
> Event: time 1219526119.163805, type 5 (?), code 0 (?), value 1
> 
> 6. Execute "s2ram -f -p -s" again.
> 7. Wake the system with the POWER button.
> 8. "evtest" reports the following line:
> 
> Event: time 1219526913.208803, type 5 (?), code 0 (?), value 0
> 
> 	Márton Németh
> 
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