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Preventing laptop wake up when opening the lid on linux

Preventing laptop wake up when opening the lid on linux

My laptop is broken and the lid does not lock. So I want it not to wake up when the lid is open. I use ubuntu, but gnome-power-preferences does not have any option like that (only to close the lid).

Asked by: Guest | Views: 68
Total answers/comments: 2
Guest [Entry]

"I found a way after googleing a bit smarter (it was difficult to find the correct search keys).

In short, the file /proc/acpi/wakeup has a line for LID which is enabled.

$ cat /proc/acpi/wakeup
Device S-state Status Sysfs node
PCIB S4 disabled pci:0000:00:1e.0
USB1 S3 disabled pci:0000:00:1d.0
USB2 S3 disabled pci:0000:00:1d.1
USB3 S3 disabled pci:0000:00:1d.2
USB4 S3 disabled pci:0000:00:1d.3
USB7 S3 disabled pci:0000:00:1d.7
MODM S3 disabled
HDEF S3 disabled pci:0000:00:1b.0
PXS1 S4 disabled pci:0000:02:00.0
LID S4 *enabled

If you echo "" LID"" > /proc/acpi/wakeup it will change to disable and the computer won't wake up on lid open.

Follow the instructions on the already mentioned link to set it permanent on your computer."
Guest [Entry]

"Usually wake is not triggered once lid is open. If you get running system once you open lid, your system was probably not in S3 sleep as it should have been. Probably there is something preventing full sleep.

Additionally you can look in BIOS for wake-up events and turn off those that you don't want (maybe lid wake is among them)."