If it doesn’t, contact your retailer or manufacturer to discuss a return or replacement. If it does, consider running it as the primary display until you determine the root problem. If you’re still having trouble with your extended desktop monitor, verify that it works by unplugging the primary screen and double-checking the above steps again. Making sure you’re running the latest graphics drivers for your system can sometimes fix problems with no signal errors. Update your drivers: Windows supports multiple monitors by default, but your current setup may not be configured correctly. Switching to another may be all you need to do to correct the problem. Sometimes ports themselves can go bad or somehow get damaged. You can also try using a new cable in case the old one has issues (bent pins, a short, exposed wire, etc.).Ĭhange the graphics port: If you’re using a dedicated graphics card with multiple output ports, try switching to another port. Try to remove the adapter if possible, or replace it with another adapter to see if this fixes the issue.Ĭhange data cable: If you’re using an older cable standard like VGA or DVI-D, you might want to try a newer alternative like HDMI or DisplayPort. If you are using an adapter to switch from one type of input to another, this may be causing issues with the other monitor. Use the buttons on your monitor to cycle through the channels and select the correct input from your PC. Verify the correct input: Monitors with multiple input options need you to manually select which cable and port you’re using, like HDMI 1, HDMI 2, DisplayPort 1.4, USB-C, and so on. You may need to find newer, compatible accessories or use connections on your PC instead of your monitor. If your display starts working afterward, these connections were probably interfering with your setup. Remove other peripheral devices: Disconnect any connected cameras or other unnecessary peripherals. If they do seem well secured, unplug them and plug them in again just to be sure. Verify cable connections: A loose cable can cause “no signal” errors more often than any other problem. That may be all it needs to recognize the video feed and start displaying it correctly. Turn the screen off and on: Some connection types don’t like hot swapping while a different monitor is powered on. ![]() In Windows 11, you can find this under the Multiple Displays section. ![]() In the following window, click the Detect button located under the display diagram. To force it to check again, right-click the desktop and select Display Settings from the resulting pop-up menu. The most common Zoom problems and how to fix themįorce Windows to detect your monitor: Maybe Windows didn’t recognize your second display’s connection. The most common Chromebook problems and how to fix them If your game looks blurry or stretched and distorted, check its display settings and make sure you set it to the right resolution for your screen.This stacked, vertical monitor setup revolutionized my workflow It’s common for video games to default to a resolution that’s different from what your monitor requires to look sharp. Some full-screen apps and video games can control and take over your system’s resolution. ![]() For example, if your display has both an HDMI and DisplayPort input, then switching to DisplayPort will give you access to higher resolutions and refresh rates in most cases.Ĭonfused? Check out DVI vs HDMI vs DisplayPort – What You Need to Know. In some cases, you can fix this by switching connectors. In short, check that both your GPU and cable support the resolution you want. Your graphics card needs to support at least HDMI 1.3 to handle a 4K 60Hz resolution.For example, you need a category 3 HDMI cable to run a 4K display at 60Hz. HDMI cables come in different categories, and the HDMI output on your graphics card may only support specific resolutions.
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