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Backlight Bleed Test

Free backlight bleed test. A pure black full screen in a dark room reveals corner glow and edge light leaks before your return window closes.

Eyes adjusting60s
Turn the room lights off, start the timer, and look away from the screen until it reaches zero.

Judging bleed before your eyes have adapted is the single most common cause of a needless monitor return. Check each corner and each edge in turn, straight on — bleed that only appears from an angle is normal IPS glow, not a fault.

Timer not started.