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# Thinkpad X220
These are a bunch of useful programs if you own a thinkpad X220.
This guide is done in collaboration with [rvbg.eu](https://wiki.rvbg.eu).
## Install Gfx drivers
`yay -S xf86-video-intel`
## Fan controlling
- ` yay -S lm_sensors thinkfan` - Install the needed utilities
- `sudo modprobe thinkpad_acpi` - After that load the kernel module thinkpad_acpi
- `sudo cp /usr/share/doc/thinkfan/examples/thinkfan.conf.simple /etc/thinkfan.conf` - Copy and configure the config file
- `systemctl start thinkfan` - Start the thinkfan service
- `sudo thinkfan -n` - Check the output
`systemctl enable thinkfan.service` - enable the thinkfan service
## Change brightness via keyboard
- `sudo vim /boot/loader/entries/arch.conf` - Open the bootloader configuration
- Go to the `options` line.
Append the following.
```
acpi_osi="!Windows 2012"
```
- `shutdown -r now` - Reboot the system
## Activate battery options
- `yay -S tlp` - Install the service
- `yay -S acpi_call` - Enables battery charging stop at given capacity
- `sudo vim /etc/tlp.conf` - Open the battery options
- Change the following lines
```
START_CHARGE_THRESH_BAT0=80
STOP_CHARGE_THRESH_BAT0=90
```
The battery will start charging at 80 percent and stop charging at 90.
- `sudo tlp start` - Start service and save changed options
- `sudo systemctl enable tlp.service` - Enable the service
## Setup Thinkpad Dock
- `yay -S dockd` - Install the docking service
- `yay -S xrandr arandr` - Instll multimonitor tools
- Dock the system
- `arandr` - Setup the monitor configuration
- `dockd --config docked` - Save the changes (has to maybe be stopped by `CTRL + C`)
- Undock the system
- `arandr` - Setup the monitor configuration
- `dockd --config undocked` - Save the changes (has to maybe be stopped by `CTRL + C`)
- `systemctl enable acpid` - Activate ACPI listener
- `systemctl start acpid` - Start ACPI listener
Scripts to change configuration at docking/undocking
- For the docked configuration use `vim /etc/dockd/dock.hook`
- For the undocked configuration use `vim /etc/dockd/undock.hook`