Check The Followings - Samsung SNOW-AAE User Manual

Check the followings.

Installation issue (PC mode)
The screen keeps switching on and off.
Blank spaces are found on all four sides of the screen when
a DP, an HDMI, or an HDMI-DVI cable is connected between
the product and PC.
Screen issue
The power indicator is off. The screen will not switch on.
Cable not connected or device power confirmation message
appear on the screen.
No cable signal or device power confirmation message
appear on the screen.
The images on the screen look distorted.
The screen is not clear. The screen is blurry.
Check that the cable between the product and the PC is connected correctly.
The blank spaces found on the screen have nothing to do with the product.
Blank spaces on the screen are caused by the PC or graphics card. To resolve the problem,
adjust the screen size in the HDMI or DVI settings for the graphics card.
If the graphics card settings menu does not have an option to adjust the screen size, update the
graphics card driver to the latest version.
(Please contact the graphics card or computer manufacturer for further details about how to
adjust the screen settings.)
Make sure that the power cord is connected.
Check that the product is connected correctly with a cable.
Check that the source device connected to the product is powered on.
When using a USB Type C adapter, a gender that supports HDMI 2.0 (DP 1.2 or higher) is
recommended. If the message is displayed on the screen, please check by disconnecting the
gender from the source device and connecting it. If the problem persists, contact the gender
producer.
For resolutions included in Preset Timing Modes Table, select m MENU →
Settings → Input Signal Plus to check the corresponding port is enabled.
Check the cable connection to the product.
Set the resolution and frequency to the recommended level.
Picture → Advanced
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