# Auto Suspend USB

**There are 2 settings that needs to changed:**  
1. Add `usbcore.autosuspend=0 usbcore.autosuspend_delay_ms=-1` to `/boot/grub/grub.cfg` kernel param
2. Disable monitor power manager control in `xfce4-power-manager` settings
3. Install `acpid`
4. Add the following udev rules to `/etc/udev/rules.d/99-usb-autosuspend.rules`:
```
ACTION=="add", SUBSYSTEM=="usb", TEST=="power/control",
ATTR{power/control}="on"
ACTION=="add", SUBSYSTEM=="usb", TEST=="power/autosuspend",
ATTR{power/autosuspend}="0"
ACTION=="add", SUBSYSTEM=="usb", TEST=="power/autosuspend_delay_ms",
ATTR{power/autosuspend_delay_ms}="-1"
```