Arch-Linux – How to Disable Auto Suspend When Closing Laptop Lid

I'm using archlinux. It never auto-suspend before a recent system upgrade(maybe I updated the kernel?).

I think it is related to laptop-mode or acpid, so I stop them:

/etc/rc.d/laptop-mode stop
/etc/rc.d/acpid stop

I also edit /etc/laptop-mode/laptop-mode.conf:

ENABLE_LAPTOP_MODE_TOOLS=0

Then I edit /etc/acpi/actions/lm_lid.sh, commented out the last line:

# /usr/sbin/laptop_mode auto

But all of above don't work. Following lines were found in /var/log/kernel.log(unrelated lines omitted):

Oct 23 15:29:20 localhost kernel: [18617.549098] PM: Syncing filesystems ... done.
Oct 23 15:29:20 localhost kernel: [18618.001898] PM: Preparing system for mem sleep
Oct 23 15:29:30 localhost kernel: [18618.039565] Freezing user space processes ... (elapsed 0.01 seconds) done.
Oct 23 15:29:30 localhost kernel: [18618.052596] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
Oct 23 15:29:30 localhost kernel: [18618.065999] PM: Entering mem sleep
Oct 23 15:29:30 localhost kernel: [18618.066167] Suspending console(s) (use no_console_suspend to debug)
Oct 23 15:29:30 localhost kernel: [18618.097917] sd 0:0:0:0: [sda] Synchronizing SCSI cache
Oct 23 15:29:30 localhost kernel: [18618.098103] sd 0:0:0:0: [sda] Stopping disk
Oct 23 15:29:30 localhost kernel: [18618.270537] snd_hda_intel 0000:00:14.2: power state changed by ACPI to D3hot
Oct 23 15:29:30 localhost kernel: [18619.274374] PM: suspend of devices complete after 1196.192 msecs
Oct 23 15:29:30 localhost kernel: [18619.274691] PM: late suspend of devices complete after 0.313 msecs
Oct 23 15:29:30 localhost kernel: [18619.440877] ohci_hcd 0000:00:14.5: wake-up capability enabled by ACPI
Oct 23 15:29:30 localhost kernel: [18619.642144] ACPI: Waking up from system sleep state S3
Oct 23 15:29:30 localhost kernel: [18620.049424] PM: noirq resume of devices complete after 333.503 msecs
Oct 23 15:29:30 localhost kernel: [18620.049852] PM: early resume of devices complete after 0.334 msecs
Oct 23 15:29:30 localhost kernel: [18622.418605] PM: resume of devices complete after 2371.906 msecs
Oct 23 15:29:30 localhost kernel: [18622.419018] PM: Finishing wakeup.
Oct 23 15:29:30 localhost kernel: [18622.419019] Restarting tasks ... done.
Oct 23 15:29:30 localhost kernel: [18622.464752] video LNXVIDEO:01: Restoring backlight state

I think this is not caused by pm-susend, because /var/log/pm-suspend.log don't log anything.

I don't want my laptop go to sleep when I close the lid. How to do it?

Kernel version: 3.6.2-1-ARCH