LG UltraGear 27GR83Q Owner's Manual page 33

The screen retains an image.
Does image sticking occur even when the
monitor is turned off?
Screen display is unstable and shaky. / Images displayed on the monitor leave shadow trails.
Did you select the appropriate resolution?
2560 x 1440 resolution is not available in DisplayPort. (240 Hz) (only 27GR83Q)
Is it connected to the correct input?
2560 x 1440 resolution is not available in HDMI. (240Hz) (only 27GR83Q)
Is it connected to the correct graphics
card?
• Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image.
• To extend the lifetime of the monitor, use a screensaver.
• If the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080p or
the recommended resolution.
• If it is connected with HDMI input, set it to DisplayPort input.
Go to Settings > General > Input Compatibility Version and set the option to 1.4(DSC).
Check if the graphics card supports the DSC (Display Stream Compression).
•
• Check if the graphics card driver has been updated to the latest version.
• Check if the graphics card supports 2560 x 1440 / 240 Hz in HDMI.
• Check if the graphics card driver has been updated to the latest version.
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