Here's how to fix it. Check that your monitor is powered on. Ensure your monitor and PC are connected. If you're using a graphics card, check you're using the correct port. Make sure you're on the [quotemsg=21434383,0,1649440]I would have taken it as a sign it's faulty from Device Manager. That no unknown hardware is seen in Device Manager is strange, especially if show hidden devices is enabled. Problem is you've confirmed the graphics card works in another PC. May as well check on the small things and rule those out. At the bottom of the General tab, click the Device usage drop-down box where it says Do not use this device (disabled) and select "Use this device (enabled)." If this is not available or is already enabled, highlight the device in Device Manager and press delete on the keyboard to remove the device. Reboot the computer and let Windows re-detect Press the Windows button + R. Type “ devmgmt.msc ”. Look for your card under the Display adapter option. Press right-click on it and select enable. If you don’t see the option for enabling the graphics unit, then it means that it’s already enabled. However, if you do not see it under display adapters at all, there is something else that Vay Tiền Nhanh Chỉ Cần Cmnd Nợ Xấu.

vga not detected in device manager