It might be defective. If you can adjust the brightness, however, that is not the problem. 4) The cable to your monitor might be going bad. 5) Plug in an external monitor. If the problem still appears, then your laptop monitor and connecting cable are not the problem. 6) Easy cure that probably won't work: move your speakers and see if that helps.
RX 6650 XT - Input not supported (Acer monitor) Just intalled my brand new VGA, my recent one was RX 570 (4GB). I had my WIN10 installer ready to start a fresh windows installation. Turned the PC on, and it showed the message mentioned in the subject, until the windows loaded. So, there is no display until the Windows is booted, at all.
Launch the Device Manager (Press Win + R then type in devmgmt.msc ). Expand Display Adapters, select your display adapter, then right-click on it. Select Properties, and switch to Drivers tab. Click on Roll Back driver, select one of the options from the feedback form, then click Yes.To choose a new refresh rate for your LCD monitor in Windows, begin by clicking on Start > Control Panel > Appearance and Personalization > Display. If you are on Windows 8 or 10, just right-click on the Start button and choose Control Panel. If you’re in icon view, you can click directly on Display. On the left hand side of the window, clickIt's an Acer nitro 5 an515-53-592t running on updated windows 10. -Random screen flickering anywhere I go, desktop, browsing or gaming. -When it flickers while gaming, the game freezes and a quick alt+tab gets the game running again. -Gpu drivers updated to the latest version (built-in and gtx 1060). If using older versions of Intel UHD Use the plastic pry tool to gently loosen the edges of the screen. Take your time and work around the entire perimeter of the screen, ensuring not to apply too much pressure that could further damage the display. Once the edges are loose, carefully lift the cracked screen away from the monitor. Find service & support for your Acer products, search for BIOS updates, manuals, drivers and patches. dB6ol.