Help library: Help library: [LG Monitor] It says the 27GK750F mode supports the vertical frequency of 240Hz, but I cannot use it

[LG Monitor] It says the 27GK750F mode supports the vertical frequency of 240Hz, but I cannot use it

Troubleshooting Digital Signage 09/12/2025

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<div class="content-service-view">
<p class="info-desc">Check if the graphics card supports the spec by referring to the homepage of the graphics card maker.</p>

<h2 class="tit">Try this</h2>
<p>
Check if the model in use is 27GK750F.<br/>
Check if the monitor terminal such as HDMI 2.0, DisplayPort 1.2 and so on are existing in the graphic card and check if<br/>
the graphics card’s vertical frequency output spec for each terminal meets the 240Hz requirement.<br/>
Check if the graphics card supports the spec by referring to the homepage of the graphics card maker.
</p>

<h3 class="sub-tit">In case of HDMI connection</h3>
<p class="txt-idt">
1. Connect it to a graphics card that supports HDMI 2.0.
</p>    <p>※ Some older graphics cards do not support HDMI 2.0,but you can select HDMI 2.0 resolution in the control panel of window.</p><p class="txt-idt">
2. Set Monitor OSD → General → HDMI Compatibility Mode → Off.
</p>    <p>
※ When HDMI Compatibility Mode is on, 1920 x 1080 @ 144/240Hz resolution is not supported.
</p><p class="txt-idt">
3. In the Windows display property menu and the graphics card control panel, set the vertical frequency of 240Hz.
</p>

<h3 class="sub-tit">In case of DisplayPort connection</h3>
<p class="txt-idt">
1. nitor OSD → General → DisplayPort 1.2 →  Enables.
</p><p class="txt-idt">
2. In the Windows display property menu and the graphics card control panel, set the vertical frequency of 240Hz.
</p><p class="help-txt">This guide was created for all models, so the images or content may be different from your product.</p></div>

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[LG Monitor] It says the 27GK750F mode supports the vertical frequency of 240Hz, but I cannot use it

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