CTL671 appears to be a model number for a graphics/touchpad/USB controller or a chipset used in laptops or tablets. (If you meant a different device, replace model accordingly.)
Official Wacom Driver (Universal)
The CTL-671 uses the same driver as all modern Wacom pen tablets. Do not use third-party "driver download" sites. ctl671 driver download best
https://www.wacom.com/support/product-support/driversDownloading the correct file is half the battle. Incorrect installation causes 90% of "tablet not working" posts. Follow this precise method for Windows/macOS. CTL671 driver download — concise guide What CTL671
| Driver Version | Release Year | OS Compatibility | Performance on CTL-671 | Verdict | | :--- | :--- | :--- | :--- | :--- | | 6.3.46-2 | 2022 | Win 7/8/10/11 | Excellent. Native pressure, low latency, no telemetry. | Gold Standard | | 6.3.45-1 | 2022 | Win 7/8/10 | Stable but lacks multi-monitor fixes. | Acceptable fallback | | 6.4.0-5 | 2023 | Win 10/11 | Introduces "Wacom Center" bloat. Reported 15% CPU spikes. | Avoid | | 6.4.7-3 | 2024 | Win 11 only | Dropped CTL-671 from "active support" list. Requires registry hacks. | Not Recommended | | 6.3.46-1 | 2022 | macOS 10.15-11 | Last version with dedicated CTL-671 kernel extension (kext). | Best for Mac | | 6.4.2+ | 2023+ | macOS 12+ | Forces "Input Monitoring" permissions; pen lag ~40ms higher. | Avoid | Go to: Wacom's official driver download page Direct
Best Driver: input-wacom kernel module (built-in, not downloaded)
sudo modprobe wacomxsetwacom to set pressure curve:xsetwacom set "Wacom One by Wacom Medium Pen stylus" PressureCurve 0 0 30 100.run driver for Linux—it is unmaintained for CTL-671 and breaks XInput.