In that case, use another cable and check the second monitor. For Microsoft Windows systems, use the links above in Section 1: No Signal To Monitor. Most new PC's will only support either HDMI or DP. If one is disabled, it will be grayed out. I then tried playing with the settings a little bit: Updating graphics card drivers. I tried to use duel monitors with a VGA splitter and it is detecting only 1 monitor but on the second monitor it is showing the same thing on my first monitor but in blue. 5. 1- Do a right Click on your desktop anywhere on empty space.. 2 -In the context menu which appears, just click on personalize.. 3 – Check that you are able to see TV as a second monitor or not. If all multiple monitors are detected by your operating system, you may have to enter the video card manufacturer's control panel and enable the multiple monitor configuration there. In bios I have 2 options under primary video adapter and they are auto, and onboard card. My mobo is an Asus P7P55 LX. Posts : 14,346. If your second monitor is not detected on Windows 10, even though you know the monitor itself works fine and the video output it’s connected to is fine, don’t give up hope. I m trying to set up a VGA monitor as my secondary monitor and use it to extend my desktop as I did with my old Win8 system. I could see it in the settings, but when trying to tell it to “extend these displays”, it couldn’t save the configuration. plugged in BELOW the audio jacks on the back of the computer**. 3) You should see icons with numbers representing your attached monitors. Using screenshots, I've determined that the monitor exists and the displays extend, but it will not physically display a second screen even if it's correctly being detected. Ensure that the multiple monitors are detected in your operating system. There are no conflicts in the device manager, and all of the drivers are up to date. The second monitor was definitely being detected. Fix 2 – Check that Your Display Output is working fine or Not. I understand that your OMEN by HP Desktop PC - 870-126na does not detect the monitor when connected by HDMI cable. For christmas I recently recieved GSKILL F3-12800CL9D-8GBRL. Try to set up the monitor manually and check if it works. when i connect a dvi or hdmi from my gtx 780 to my acer H274HL Monitor all works fine but when i want to connect display port cable on my gtx 780 and the other side is hdmi that goes to my monitor than there is no signal at all ... but that did not help at all, still no signal on the screen My Computer NavyLCDR. Select Multiple Displays. But, if the second monitor does not support the same cable? If the first monitor is working without any problems, unplug the first monitor from computer or notebook and connect the second monitor to the same cable. When set to auto the Nvidia card gets a signal but the Radeon does not. Click Detect And / Or Select Duplicate screen. My I ve looked up several responses, but none of them have helped. Different monitor cables include HDMI, DP, DVI, and VGA. Such as - using WinKey + P and click "Extend" That doesn t work because my first problem is that, for some reason, I don t think my computer detects my VGA monitor. I have 2 kits totaling 16gb of memory. Both displays are being detected and it doesn't seem to matter if it's displayport or HDMI, but it will only display one monitor at a time. 2) Next select Display Settings from the list of preferences. please help. ***Post moved by the moderator to the appropriate forum category. 3. Click on Display 4. Don't worry as I have a few steps that should help fix this issue. I turned off … 1) Right-click the desktop, and select Properties or Personalize. When I am in the screen resolution settings the second monitor cannot be detected. This issue has occurred because the normal HDMI port gets disabled when the graphics card is installed. *** This thread is locked. If you are not seeing a spot below the audio jacks to plug in the monitor cable, … Rolling back these updates.