![]() ![]() I tried a different HDMI cable, same result. Usually after just a few minutes, sometimes it takes hours before it happens. The freeze occurs at various time intervals. When powered back on it works fine for a few minutes and then it eventually freezes again. The only remedy is to press the power button on the TV, and after a delay it will power off. It starts at the top of the screen and cascades down the screen until the entire screen is filled with flashing and changing pixels of every color. Then, after a few minutes, no matter what I am doing on the PC, the TV picture (not the PC) freezes and then a crazy "light show" begins. Upon initial connection using HDMI, the picture looks stunning, no complaints. I connected the two using VGA and it works okay, but the picture quality was wrought with shadows and dull colors, so I wanted to upgrade and use the HDMI connection. I have a Vizio 22" HDTV with HDMI and a PC with a generic ATI 5770 video card. To rule out the possibility of a faulty HDMI TV or monitor, you may also have to run the Hardware and Devices troubleshooter to fix the problematic device.I have searched for hours on this forum and in other places and cannot seem to find anybody else with the same issue that I am having, so I hope someone with more knowledge than I can help me here. Step 3: Select the external monitor or TV from the Select One or More Active Displays section. Step 2: The Intel Graphics Control Panel window will open. (For Windows 11, you need to go to Show more options > Intel Graphics Settings). Step 1: Right-click any blank space on the desktop. ![]() ![]() This only works if your system has hardware with on-board Intel graphics supported. The Intel Graphics Control Panel allows you to select a connected monitor from the Display Mode menu. Way 4: Detect Displays Using Intel Graphics Control Panel Then Windows will install the latest drivers. Step 3: Select Search automatically for drivers. Step 2: Find and expand the Display adapters menu and right-click it. Step 1: Press the Win + X key and select Device Manager from the menu. So, you need to update the Display driver to fix the Windows 10/11 not detecting HDMI TV or 4K TV issue. If you’re using an outdated display driver on your computer, Windows 10/11 may have issues detecting the display over HDMI. If you selected PC Screen Only from projection, it is time to change it to Second Screen Only. Window users can project visuals to a second monitor using the following options: When your PC is connected to an external monitor or TV, use the Win + P key to launch the projection option. Windows 10/11 offers different options to mirror, cast or view your PC screen on a connected monitor or TV. Way 2: Check and Change Projection Setting Then expand the Multiple displays and click on the Detect button for the Detect other display option. Step 3: Once done, close the Settings app.įor Windows 11, navigate to Settings > System > Display. Step 2: On the right pane, scroll to the Multiple displays section and click on the Detect button. Step 1: Press the Win + I key to open Settings. To manually detect Display in Windows 10, here is how to do that. In this case, to fix the problem, you need to detect the monitor manually. If you are trying to connect an old monitor or TV to Windows 11/10, you may encounter the Windows 10/11 not detecting HDMI TV issue. If you’re still having issues with Windows 10/11 not detecting HDMI TV or 4K TV, here’s how to fix it.
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