gngdb/gist:9977911

## gistfile1.txt
## Hibernating
Want to hibernate at low battery automatically. First getting hibernate to work. Created swap partition larger than RAM (8Gb) and set it up with mkswap and swapon as in [Arch Wiki](https://wiki.archlinux.org/index.php/Swap). Added kernel parameters to grub. **Problem**: didn't read the article properly and forgot to add to fstab so swap didn't stay on reboot.

Next should use udev rule to get the system to auto-hiberate at 5% or similar. [Forum post](https://bbs.archlinux.org/viewtopic.php?pid=1164408) appears to cover how to do this, but doesn't. It's in the [Laptop page](https://wiki.archlinux.org/index.php/laptop#Udev_events) of the arch wiki.

```
# Suspend the system when battery level drops to 2%
SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ATTR{capacity}=="2", RUN+="/usr/bin/systemctl suspend"
```

Modified the above to this:

```
SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ATTR{capacity}=="2", RUN+="/usr/bin/systemctl hibernate"
```

However, does not appear to be working yet. Could be a problem with detecting battery state. i3status can detect it so it might be possible to fix this by looking at that.
	## Hibernating
	Want to hibernate at low battery automatically. First getting hibernate to work. Created swap partition larger than RAM (8Gb) and set it up with mkswap and swapon as in [Arch Wiki](https://wiki.archlinux.org/index.php/Swap). Added kernel parameters to grub. Problem: didn't read the article properly and forgot to add to fstab so swap didn't stay on reboot.

	Next should use udev rule to get the system to auto-hiberate at 5% or similar. [Forum post](https://bbs.archlinux.org/viewtopic.php?pid=1164408) appears to cover how to do this, but doesn't. It's in the [Laptop page](https://wiki.archlinux.org/index.php/laptop#Udev_events) of the arch wiki.

	```
	# Suspend the system when battery level drops to 2%
	SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ATTR{capacity}=="2", RUN+="/usr/bin/systemctl suspend"
	```

	Modified the above to this:

	```
	SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ATTR{capacity}=="2", RUN+="/usr/bin/systemctl hibernate"
	```

	However, does not appear to be working yet. Could be a problem with detecting battery state. i3status can detect it so it might be possible to fix this by looking at that.