Fixing the Linux optical mouse lag issue after idle for a while

Some optical mouses are becoming unresponsive after idle for a while on Linux. It caused by the Linux built-in power management configurations. Linux power management system will suspend your USB devices if not used for a while. So it effecting badly for some devices. To fix this issue you have to disable the autosuspend rules for your specific device.

Disabling autosuspend rule

To disable the autosuspending rules, first you need to obtain the device's vendor id and the product id. You can get these ids by running lsusb.

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 0bda:b00a Realtek Semiconductor Corp. Realtek Bluetooth 4.2 Adapter
Bus 001 Device 004: ID 04f2:b626 Chicony Electronics Co., Ltd HP TrueVision HD Camera
Bus 001 Device 003: ID 1ea7:0064 SHARKOON Technologies GmbH 2.4GHz Wireless rechargeable vertical mouse [More&Better]
Bus 001 Device 002: ID c0f4:04c0 SZH usb keyboard
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

In this example Bus 001 Device 003: ID 1ea7:0064 SHARKOON Technologies GmbH 2.4GHz Wireless rechargeable vertical mouse [More&Better] is my device, 1ea7 is the vendor id and 0064 is the product id.

Now open the /etc/udev/rules.d/50-usb_power_save.rules file and add the following autosuspend rule.

$ sudo nano /etc/udev/rules.d/50-usb_power_save.rules

ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="1ea7", ATTR{idProduct}=="0064", ATTR{power/autosuspend}="-1"

To exit from nano editor, press Ctrl+x and . If this file not exist,nanocommand will create it for you. Replace the1ea7,0064` with your vendor id and product id.

Reloading suspend rules

Linux udev daemon will automatically detect the changes in rules file and reload your rules. However, the rules are not re-triggered automatically on already existing devices. Hot-pluggable devices, such as USB devices, will probably have to be reconnected for the new rules to take effect.

If rules fail to reload automatically run the following command.

$ sudo udevadm control --reload

And run this command to trigger those rules.

$ sudo udevadm trigger

Now you do not need to restart your system.