User guide
Mekiki Screen Test Guide
Mekiki is designed for quick visual checks before returning a monitor, buying a used screen, or tuning a display. Use it in a quiet room, clean the screen first, and compare what you see across several modes instead of relying on one color alone.
Start with solid colors
Use white, black, red, green, blue, cyan, magenta, and yellow to scan for dots that stay bright, dark, or stuck on one channel. Move slowly across the screen and avoid pressing on the panel.
Check uniformity
Uniformity mode shows large flat fields at 25%, 50%, and 75% brightness. This helps reveal cloudy areas, edge tint, dirty-screen effect, and uneven backlight behavior that may not appear on pure black or pure white.
Use gradients and text
Gradient mode makes banding and abrupt transitions easier to see. Text mode fills the screen with fine text so you can judge sharpness, scaling, subpixel rendering, and focus at normal viewing distance.
Use Pixel Wake carefully
Pixel Wake flashes colors for stuck-pixel recovery attempts. It is not guaranteed to fix a panel, and it can be uncomfortable for people sensitive to flashing light. Read the warning and stop immediately if you feel eye strain, dizziness, or discomfort.