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Why does my monitor display a "No Signal" message? - Acer Community
<main> <article class="userContent"> <p>A "No Signal" message indicates that your monitor is not receiving a valid video signal. There are several reasons why this may occur. To help troubleshoot the issue please perform these steps:</p><ol><li>Ensure that the correct type of video cable is securely connected to the correct video source. </li><li>Confirm that your video source is powered on and functioning properly.</li><li>Try another video cable if one is available.</li><li>Connect the monitor to a different video output on the computer if one is available.</li><li><a href="https://community.acer.com/kb/articles/98-reset-bios-or-uefi-to-default-settings" rel="nofollow noreferrer ugc">Reset your BIOS defaults</a>.</li><li>Test the monitor by connecting it to a different computer.</li></ol><p>If the monitor still displays a "No Signal" message please contact <a href="http://support.acer.com" rel="nofollow noreferrer ugc">Acer support</a>.</p> </article> </main>