Other issue with motherboard, replace motherboard. Display cable issues tend to go away or change if the laptop lid is moved, so if this is not happening it is more likely a liquid damage, LCD or motherboard issue. Motherboard looks fine. The graphic card is not replaceable. Cable also looks fine.
Be sure the projector normally turns on. For models that include a battery, please turn the device on with the power cable connected. Check the connecting cable from the projector to Notebook is secured. Or, try changing the cable connecting the external monitor. If the new one works, you know the previous cable was faulty.For example, you need a category 3 HDMI cable to run a 4K display at 60Hz. Your graphics card needs to support at least HDMI 1.3 to handle a 4K 60Hz resolution. In short, check that both your GPU and cable support the resolution you want. In some cases, you can fix this by switching connectors. For example, if your display has both an HDMI andHow to Switch to RGB Full on AMD Graphics. If you have AMD graphics hardware, right-click your desktop background and select the "AMD Radeon Settings" option to open the AMD Radeon Settings control panel. Select Display > Preferences > Pixel Format, click the "Color Pixel Format" box, and select "RGB 4:4:4 Pixel Format PC Standard (Full RGB)". 2. Then, plug your laptop into a functioning outlet. 3. First, confirm the outlet is functioning properly by plugging another device into it - if it works, the issue isn’t the outlet. 4. If you can power on your laptop without the battery installed, the issue isn’t the power supply, it’s your battery. 5. . 318 425 289 11 205 139 248 58