Help Library: Help Library: If Your TV Screen Shows a Double Image or Screen shaking

If Your TV Screen Shows a Double Image or Screen shaking

Troubleshooting LIFESTYLE SCREENS, TVs 01/09/2026

<div class="content-service-view">
<p class="description info-desc">
An unstable broadcast signal or a connection issue with an external
device often causes a double image or screen shaking on your TV screen. <br/>
Run Screen Self-Diagnosis to determine if the issue is with your TV or
the external signal.
</p>

<h2 class="tit mainName">
What Causes a Double Image or Screen shaking on an LG TV Screen?
</h2>
<p>
A weak or unstable video signal often causes a double image, or screen shaking on your screen. <br/>If this happens only on a specific channel or
connected device, it is likely a broadcast signal issue or a temporary
device error, rather than a problem with your TV.
</p>

<h2 class="tit">How to Fix a Double Image or Screen shaking</h2>

<h3 class="name">Step 1. Run Screen Self-Diagnosis</h3>

<div class="text">
<p>
Run Screen Self-Diagnosis to check your TV's display. Choose the
menu path for your TV's model year:
</p>

<li>
For models released in 2021 or later (including QNED, NanoCell,
UHD, and OLED):<br/>
Press Settings on your remote, then select All Settings, Support,
and Screen Self-Diagnosis. On some OLED TVs, select All Settings,
General, OLED Care, Device Self-Care, and Screen Self-Diagnosis.
</li>

<li>
For models released in 2020 or earlier:<br/>
Press Settings on your remote, then select All Settings, Support,
Additional Settings, and Picture Test. On some earlier models,
select All Settings, Picture, and Picture Test.
</li>
</ul>
</div>
</div>

<h3 class="name">Step 2. Check the Test Image</h3>

<div class="text">
<p>Check if the test image appears clear.</p>

<li>
If the image is clear: Your TV is operating normally.
<br/>Restart your connected device, such as a set-top box or game
console.<br/>
Disconnect the HDMI cable and plug it firmly back in.
</li>

<li>
If the image is doubled: If the test image shows the same issue as
the broadcast screen, contact LG Customer Support.
</li>
</ul>
</div>
</div>

<h3 class="name">Step 3. Check the Signal on the Affected Channel</h3>

<div class="text">
<p>
If you connect an antenna or cable directly to your TV, the signal
may be weak on a specific channel.
</p>

<li>
If other channels display a clear picture, the broadcast signal
for the affected channel is likely unstable.
</li>

<li>
Press Settings on your remote, then select All Settings, Channels,
Channel Tuning, and Manual Tuning. <br/>Check if the signal
strength and quality for the affected channel are adequate.
</li>
</ul>
</div>
</div>

<h3 class="name">Step 4. Still Need Help?</h3>
<p class="text">
If the issue continues after you follow the steps above, use the LG
Chatbot on the LG website or request a technician visit for further
assistance.
</p>      </div>

<span>Q.</span> How do I refresh my OLED TV screen after watching a program?
</dt>
<dd>

<span>A.</span> Displaying a static image, such as a channel logo, for an extended period can affect your screen's picture quality. Run Pixel Cleaning or Pixel Refresher from your TV settings to restore your screen to its optimal condition.
</dd>
</dl>
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<p class="help-txt">
This guide is based on standard models. The settings menu may vary by
model.
</p>    </div>

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If Your TV Screen Shows a Double Image or Screen shaking

What Causes a Double Image or Screen shaking on an LG TV Screen?

How to Fix a Double Image or Screen shaking

Step 1. Run Screen Self-Diagnosis

Step 2. Check the Test Image

Step 3. Check the Signal on the Affected Channel

Step 4. Still Need Help?

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