Help Library: Help Library: [LG Laptop Screen] In Windows 10, I can’t control the LCD screen brightness

<div oncontextmenu="return false" onselectstart="return false" ondragstart="return false" >
	<html lang="en">
<head>
<meta>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width">
<style type="text/css">
@import url(https://fonts.googleapis.com/earlyaccess/notosanskr.css);
.tal {text-align:left !important;}
.ml-1 {margin-left:20px !important;}
.mt-1 {margin-top:20px !important;}
caption {overflow:hidden;width:1px;height:1px;margin:0;padding:0;font-size:1px;text-indent:-9999px;}
.content-service-view {font-family:'Noto Sans','Noto Sans KR',sans-serif;font-size:14px;line-height:1.6;}
.content-service-view .lg-red {color:#ec455a;}
.content-service-view strong {font-weight:600;}
.content-service-view p {margin:0 0 10px 0;padding:0;color:#333;}
.content-service-view .txt-idt {margin-left:1.14em !important;text-indent:-1.14em;}
.content-service-view .txt-idt * {text-indent:0;}
.content-service-view .iframe-wrap {margin-top:15px;}
.content-service-view .iframe-wrap iframe {width:640px;}
#contentsViewer .content-service-view .iframe-wrap iframe {height:360px !important;}
.content-service-view .info-subject {margin:0 0 15px;padding:0;font-size:20px;color:#444;line-height:1.5;}
#contentsViewer .content-service-view .info-subject {margin:0;padding:0 0 15px;}
.content-service-view .tit {position:relative;margin:60px 0 15px 0;padding:0;font-weight:600;font-size:22px;color:#444;line-height:1.5;}
.content-service-view .tit:before {content:"";overflow:hidden;position:absolute;left:0;top:-8px;width:25px;height:3px;background:#ec455a;}
.content-service-view .tit:first-child {margin-top:0;}
.content-service-view .info-subject+.tit {margin-top:40px;}
.content-service-view .sub-tit {position:relative;margin:60px 0 10px;padding:0 0 0 22px;font-size:17px;font-weight:500;line-height:1.5;}
.content-service-view .sub-tit:before {content:"";overflow:hidden;position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:#999 url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=CYfUaCPKDZkbFewB3OjoAA&amp;portalId=P1) no-repeat 4px 50%;background-size:10px;}
.content-service-view .sub-tit:first-child,
.content-service-view .tit+.sub-tit {margin-top:20px;}
.content-service-view .sub-tit .num {display:block;position:absolute;left:0;top:5px;width:17px;height:17px;text-align:center;border-radius:50%;font-size:11px;color:#fff;background:#999;}
.content-service-view .info-tit {margin:20px 0 0;padding-left:20px;font-size:15px;font-weight:500;background:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=81CJtgOoS8EBzjcpk4oCvA&amp;portalId=P1) no-repeat 0 5px;background-size:15px;}
.content-service-view .info-desc {margin:0.3em 0 0.5em;font-weight:500;color:#000;}
.content-service-view .info-desc.idt {margin-left:18px;text-indent:-18px;}
.content-service-view .img-only {margin:0 0 20px;}
.content-service-view .img-only img {max-width:100%;margin-bottom:15px;}
.content-service-view .img-only img:last-child {margin-bottom:0;}
.content-service-view .img-box {margin:15px 0;font-size:0;line-height:0;}
.content-service-view .img-box a {font-size:0;line-height:0;}
.content-service-view ol,
.content-service-view ul {margin:0 0 20px;padding:0;list-style:none;}
.content-service-view .cause-list {margin-top:0;}
.content-service-view .cause-list li {position:relative;margin-top:5px;padding-left:10px;line-height:1.5;}
.content-service-view .cause-list li:before {content:"";position:absolute;left:0;top:9px;overflow:hidden;width:3px;height:3px;border-radius:50%;background:#000;}
.content-service-view .bul-list {margin-top:15px;}
.content-service-view .bul-list li {position:relative;margin-top:7px;padding-left:10px;line-height:1.5;}
.content-service-view .bul-list li:before {content:"";position:absolute;left:0;top:9px;overflow:hidden;width:4px;height:4px;border-radius:50%;background:#ec455a;}
.content-service-view .link-list {margin-top:10px;}
.content-service-view .link-list li {display:table;box-sizing:border-box;width:100%;margin-top:10px;padding:8px 15px;border-radius:8px;box-shadow:2px 4px 16px 1px rgba(0,0,0,0.14);}
.content-service-view .link-list li .link-tit {display:table-cell;padding-right:5px;font-weight:600;vertical-align:middle;}
.content-service-view .link-list li .right {display:table-cell;text-align:right;}
.content-service-view .link-list li .ver {display:inline-block;margin-top:5px;color:#999;}
.content-service-view .link-list li .right a {margin-left:10px;}
.content-service-view .tbl-scroll {position:relative;overflow-x:auto;margin:0 0 15px;}
.content-service-view .tbl-scroll table {border-collapse:collapse;}
.content-service-view .tbl-scroll th,
.content-service-view .tbl-scroll td {padding:7px;border:1px solid #ccc;text-align:center;white-space:nowrap;vertical-align:middle;font-size:14px;line-height:1.6;}
.content-service-view .tbl-scroll th {font-size:15px;font-weight:600;background:#ddd;}
.content-service-view .tbl-scroll td p {margin-bottom:0;}
.content-service-view [class^="icon-"] {display:inline-block;overflow:hidden;width:14px;height:14px;text-indent:-5000px;margin-right:2px;vertical-align:-2px;background-image:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=e6Br68S0ipa4zVZ3ZhqQ&amp;portalId=P1);background-size:100%;}
.content-service-view .icon-down {background-image:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=cSrRVKKz6eHJNHzIRgzWA&amp;portalId=P1);}
.content-service-view [class^="btn0"] {display:inline-block;height:32px;padding:0 15px;border:1px solid #ec455a;border-radius:18px;text-decoration:none;font-size:14px;color:#ec455a;line-height:2;background:#fff;}
.content-service-view .btn01:hover {color:#fff;background:#ec455a;}
.content-service-view .link-btn {display:inline-block;height:32px;margin-top:5px;padding:0 15px;border:1px solid #d2d2d7;border-radius:18px;text-decoration:none;font-size:14px;color:#ec455a;line-height:2;background:#fff;}
.content-service-view .link-btn:hover {border-color:#ec455a;}
.content-service-view .link-txt {display:inline-block;text-decoration:underline;vertical-align:top;color:#ec455a;}
.content-service-view .tip-box {margin:15px 0 25px;padding:20px 22px 10px;border:2px solid #ddd;border-radius:8px;}
.content-service-view .tip-box .tip-tit {display:block;position:relative;padding-left:22px;font-size:15px !important;color:#222;}
.content-service-view .tip-box .tip-tit:before {content:"!";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;text-align:center;font-size:11px;color:#fff;background:rgb(192, 192, 192);}
.content-service-view .tip-box p {margin-top:1em;color:#ec455a !important;}
.content-service-view .tip-box strong {font-size:14px;}
.content-service-view .tip-box&gt;p&gt;strong {color:#ec455a !important;}
.content-service-view .tip-box .con-view {margin:1em 0 15px;color:#333;}
.content-service-view .tip-box .bul-list {margin-bottom:15px;}
.content-service-view .txt-box {max-width:600px;}
.content-service-view .txt-box+.txt-box {margin-top:25px;}
.content-service-view .txt-box h4 {margin:0;padding:6px;text-align:center;font-size:18px;font-weight:600;background:#ddd;}
.content-service-view .txt-box ul {margin:0 7px;}
.content-service-view .txt-box li {display:flex;flex-wrap:wrap;padding:5px;border-bottom:1px solid #ddd;}
.content-service-view .txt-box li div {flex:1 1 50%;}
.content-service-view .txt-box li span {display:block;position:relative;padding-left:10px;font-size:16px;font-weight:600;}
.content-service-view .txt-box li span:before {content:"";position:absolute;left:0;top:10px;overflow:hidden;width:4px;height:4px;border-radius:50%;background:#000;}
.content-service-view .txt-box li p {margin:0;padding:0 0 0 10px;font-size:15px;}
.content-service-view .img-banner {margin-top:2em;}
.content-service-view .img-banner .mo {display:none;}
.content-service-view .img-banner .pc {display:block;position:relative;height:168px;margin-right:175px;background:#e9ecf1 url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=EYElckJimMpH2v7UAxQSvw&portalId=P1) no-repeat 0 50%;background-size:contain;}
.content-service-view .img-banner .pc a {position:absolute;top:0;right:-175px;}
.content-service-view .img-banner .pc a img {-webkit-box-shadow: 2px 2px 5px 0px rgba(118,118,118,1);-moz-box-shadow: 2px 2px 5px 0px rgba(118,118,118,1);box-shadow: 2px 2px 5px 0px rgba(118,118,118,1);}
.content-service-view .ir-hidden {position:absolute;margin:-1px;width:1px;height:1px;padding:0;border:0;white-space:nowrap;overflow:hidden;clip:rect(0, 0, 0, 0);clip-path:inset(50%);}
.content-service-view .mobile-txt {display:none;margin-top:-10px;padding-left:20px;color:#999;background:url(https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=Xw5rvb0UTyjfo1LwHfIJ7w&amp;portalId=P1) no-repeat 0 5px;background-size:15px;}
.content-service-view .help-txt {position:relative;margin:30px 0 0;padding:0 0 0 15px;font-size:13px;color:#666;}
.content-service-view .help-txt:before {content:'＊';position:absolute;left:0;top:-1px;font-size:12px;font-weight:600;color:#ec455a;}
@media screen and (max-width: 768px) {
.content-service-view img {max-width:100% !important;}
.content-service-view .mobile-txt {display:block;}
.content-service-view .iframe-wrap {position:relative;overflow:hidden;height:0;padding-top:30px;padding-bottom:56.25%;}
.content-service-view .iframe-wrap iframe {position:absolute;top:0;left:0;width:100%;height:90% !important;}
#contentsViewer .content-service-view .iframe-wrap iframe {height:90% !important;}
.content-service-view .iframe-wrap+.tit {margin-top:0;}
.content-service-view .img-banner .mo {display:block;}
.content-service-view .img-banner .mo img {width:100%;}
.content-service-view .img-banner .pc {display:none;}
}
</style>

</head>
<body>

<div class="content-service-view">
    <p class="info-desc">
        If there is an issue with your graphics driver, you may not be able to adjust screen brightness, which can be resolved by uninstalling and reinstalling the graphics driver.
    </p>    
<h2 class="tit">Causes and Symptoms</h2>
    
<div class="cause-list">
        
<ul>
            
<li>Due to graphics driver errors or no installation of the driver, screen brightness control might fail.</li>
        </ul>
    </div>
    
<h2 class="tit">Try this</h2>
    
<h3 class="sub-tit">Did you try to adjust the brightness using the following methods?</h3>
    <p class="txt-idt">① On the keyboard, press the [Fn + F2, F3] keys to adjust the screen brightness.</p>    
<div class="img-only">
        <img alt="Description of how to adjust screen brightness by pressing the Fn + F2, F3 keys on the keyboard." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=NmxMA1vMcQIMYuEXQotAw&amp;portalId=P1">
    </div>
    <p class="txt-idt">② Adjust the screen brightn4ess in Windows settings.<br>
        On the keyboard, press the [Windows +I] key to select [Windows Setting] → [Display].
    </p>    
<div class="img-only">
        <img alt="Adjust the screen brightn4ess in Windows settings." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=hvCI14KbnwQWzrfEP8k1aQ&amp;portalId=P1">
    </div>
    <p class="txt-idt">③ In the LG Control Center program, adjust the brightness.<br>
        [System Settings] → [Screen Brightness]
    </p>    
<div class="img-only">
        <img alt="In the LG Control Center program, adjust the brightness." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=IytzbvbZpwMaERaUhRNTlw&amp;portalId=P1">
    </div>
    
<h3 class="sub-tit">In device manager, remove the graphics driver and install it again.</h3>
    <p class="txt-idt">① Right click with the mouse button on the [Start] button at the left to the screen or press the [Windows + X] keys on the keyboard to run device manager.</p>    
<div class="img-only">
        <img alt="Right-click on the Start button and enter Device Manager" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=tMLinv1XtgfMYScvXYCf4Q&amp;portalId=P1">
    </div>
    <p class="txt-idt">② In [Device Manager], double click the [Display Adapter] item.</p>    <p class="txt-idt">③ After selecting the graphics device below [Display Adapter] and click the [X] icon at the top.<br>
        ※ If the graphics device is not installed, then the display adapter is marked as “default Microsoft display adapter” or "standard VGA graphics adapter".
    </p>    <p class="txt-idt">④ Do not put a check mark on the [Attempt to remove the driver for this device.] item but click the [Delete] button.
    </p>    
<div class="img-only">
        <img alt="Delete graphics driver from device manager" src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=VRfZ7nqR5IndJsVpHYIbg&amp;portalId=P1">
    </div>
    <p class="txt-idt">⑤ After you [Restart] the PC, check if the screen brightness is adjusted.</p>    <p class="txt-idt">⑥ If the problem persists, check [Delete the driver software for this device] and restart the PC and then reinstall the graphics driver.</p>    
<div class="tip-box">
        <strong class="tip-tit">Wait! Find out more. (How to reinstall the graphics driver)</strong>
        
<div class="con-view mt-1">
            ① When purchasing an LG product for the first time, you should run the LG Update Center program if it includes Windows or run the LG DnA Center Plus program if it doesn't include Windows.
        </div>
        
<div class="con-view mt-1">
            ② If you are unable to locate the LG Update Center or the LG DnA Center Plus program, you can access the LG Electronics website's Customer Support → Drivers and select [Laptop/Tab] from the [IT/Monitor] category and enter the model name.<br>
            After that, choose the corresponding Windows version from the [Operating System (OS)] category. Once you have done this, you can proceed to install either the LG Update Center or the LG DnA Center Plus program.
        </div>
    </div>
    <p>※ If the problem persists after the above remedies, then you need to have it checked by an LG Electronics service technician.</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>

</body>
</html>
	
</div>

Help Library

[LG Laptop Screen] In Windows 10, I can’t control the LCD screen brightness

Contact