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Because your graphics card controls the video output, updating your GPU driver is infinitely more important than finding a monitor driver.
| Symptom | Likely Cause | Solution | |---------|--------------|----------| | Monitor appears as “Generic PnP Monitor” | Windows did not load the .INF | Install driver via Device Manager → Have Disk | | Max refresh rate limited (e.g., 60 Hz on a 165 Hz monitor) | Wrong cable, GPU limit, or missing driver | Use DisplayPort 1.4+, check GPU output, install Koorui .INF | | Colors look washed out | Default RGB range mismatch (Limited vs Full) | In GPU control panel set output dynamic range to (NVIDIA/AMD) | | “Driver cannot be installed – hash not found” | Windows Driver Signature Enforcement | Use the official signed driver from Koorui (post-2022 models). Do not disable signature enforcement. | | Monitor not detected at all | Loose cable, wrong input source, or hardware issue | Test with another device; check monitor OSD input selection | koorui monitor driver
Troubleshooting Common Koorui Monitor Driver & Display Issues Issue 1: Monitor is Locked at 60Hz Because your graphics card controls the video output,