I've used Logitech mice for years, starting with the G502 Hero and later the original G Pro X Superlight, which worked reliably for nearly four years. My older Superlight eventually began missing or double-registering clicks on the side buttons, so I replaced it with a G Pro X Superlight 2.
The replacement immediately had severe cursor jitter. The pointer cannot move in a straight line, constantly twitches, and even moves when the mouse is sitting still. I returned the first unit as defective, but the replacement behaves exactly the same way.
I've already tried an extensive list of fixes: every polling rate, reinstalling mouse and chipset drivers, updating Windows 11, removing and reinstalling G Hub, using onboard memory mode, testing the mouse wired and wireless, trying different motherboard and case USB ports, switching between USB 2.0 and USB 3.x, moving the receiver away from other wireless devices, cleaning the sensor, testing different surface settings, switching sensor modes, and using a different mouse pad. I also tested with touchpad-related settings disabled, enhanced pointer precision changed, unnecessary USB devices disconnected, USB selective suspend disabled, background applications and RGB software removed, hardware acceleration disabled, Xbox Game Bar disabled, AMD graphics drivers cleanly reinstalled, MPO disabled, the integrated GPU and audio device disabled, BIOS updated, PCIe power management changed, and XMP disabled.
The problem is still present even when the mouse is connected directly by cable; in wired mode, the cursor cannot remain stationary. Logitech support suggested wireless interference and said the product might be defective, but this has happened with two separate units. Both mice were purchased through Amazon from the official Logitech listing. Is there any less obvious cause or fix I should try, or is this most likely a faulty batch or a problem elsewhere in my setup?
1 Answer
Since the cursor jitters even when the mouse is connected by USB cable, this probably isn’t wireless interference, the receiver, polling rate, or nearby devices. Two identical defective units are possible, but I’d first test the mouse on a completely different computer, ideally with no Logitech software installed. If it behaves the same way there, return it and avoid exchanging it for another unit from the same listing or batch. If it works normally elsewhere, then the issue is specific to the original PC or its USB environment.
That makes sense. I focused mostly on changing settings on my main PC, but testing it on another computer should separate a hardware fault from a system problem.