How to reduce input lag for competitive gaming in Linux

🚀 Cómo solucionar el error paso a paso

Paso 1: Configurar la frecuencia de sondeo (polling rate) de tus periféricos

To make your competitive mouse and keyboard respond instantly, force the kernel driver to use a constant refresh rate of 1000 Hz on the USB ports:

# Crear un archivo de reglas para el módulo del ratón USB
echo "options usbhid mousepoll=1" | sudo tee /etc/modprobe.d/usbhid.conf

# Recargar el módulo HID para aplicar los cambios de inmediato
sudo rmmod usbhid && sudo modprobe usbhid

Paso 2: Desactivar la sincronización vertical y activar desgarro (tearing) en Wayland

If you use KDE Plasma or GNOME environments under Wayland, vertical synchronization adds latency. Allow screen tearing in full-screen games to eliminate render delay:

# En KDE Plasma 6, añade esta regla a tu configuración local para permitir Tearing
kwriteconfig6 --file kwinrc --group Wayland --key AllowTearing true

# Reiniciar el compositor gráfico para aplicar
systemctl --user restart plasma-kwin_wayland

Paso 3: Configurar el daemon de energía en modo Rendimiento

Prevent the Linux processor regulator from reducing the clock frequency of the system data bus during your game sessions:

# Cambiar el perfil de energía del sistema a alto rendimiento
powerprofilesctl set performance

# Verificar que el perfil se haya activado correctamente
powerprofilesctl get

🛡️ Consejo de Prevención

Recommended security practices:

• Do not configure polling rates higher than 1000 Hz (like 4000 Hz or 8000 Hz mice) if your processor does not have at least 6 modern dedicated physical cores. An oversized polling rate will consume massive processor cycles to constantly handle USB port interrupts, which will result in sudden graphic stutters (frame drops) and a lower average FPS rate during your game sessions.