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RaspberryPi3 powering up but no visual HDMI - VGA

wolfmountaingames

I recently got a raspberry pi, but all my monitors are VGA so I went to the store got an HDMI to VGA adapter, and plugged in the screen, mouse, keyboard, and finally the pi. The red light came on so the power cord is working, but there was no visual at all it was as if the pi was not on. I read somewhere that in an older version if you changed a line in config.txt that it sometimes help with hdmi to vga, but I can not find config.txt anywhere on the preloaded card I bought. Can someone help me with this or link me to a confirmed working HDMI-VGA adapter that works with the pi?

 

Thanks,

 

Andrew

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  • Here is how I would troubleshoot. Not necessarily in this order.

    Is the RPi running? The red light should be on and the green light should be flashing.

    HDMI adapter. Plug something else into the adapter.

    RPi running. Does the RPi show up on your router. Unplug HDMI first.

    Connect to RCA display. The audio jack has a video output. Use the cable with an 1/8 plug  and extra ring.

    SSH to the RPi. Get the Rpi IP address from your router.  Then in your PC terminal type SSH pi@[IP address like  192.168.1.6] .

    Use network cable and PC. Plug an ordinary network cable from your Rpi to your PC. In your PC terminal type IP neighbor. You should get the IP address from you Rpi. Follow the steps above.

    I hope that helps.

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  • Here is how I would troubleshoot. Not necessarily in this order.

    Is the RPi running? The red light should be on and the green light should be flashing.

    HDMI adapter. Plug something else into the adapter.

    RPi running. Does the RPi show up on your router. Unplug HDMI first.

    Connect to RCA display. The audio jack has a video output. Use the cable with an 1/8 plug  and extra ring.

    SSH to the RPi. Get the Rpi IP address from your router.  Then in your PC terminal type SSH pi@[IP address like  192.168.1.6] .

    Use network cable and PC. Plug an ordinary network cable from your Rpi to your PC. In your PC terminal type IP neighbor. You should get the IP address from you Rpi. Follow the steps above.

    I hope that helps.

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  • in reply to slashthedragon

    Hi Denis..

    what should I do, if I am not at all seeing the Green LED blinking...?

    I also facing same problem...

    One moe question.. what will happen if I switch ON the RPi without putting the SD Card...?

    waiting for your help..

    RaspberryPi3 powering up but no visual HDMI - VGA

  • in reply to pkps1968

    My Pi 2 turned on without SD card had a solid green light. When replaced if works.

  • in reply to pkps1968

    If the green light is not flashing then the software is not running. It is most likely a bad Raspberry pi or a bad SD card/software. Here is how I would troubleshoot.

    SD card.

         Not all SD cards are compatible with all devices. Try another SD card. Make sure it is  a Class 10 card. Get an oversize card.

         Download a new NOOBS.

         Can you see the files if you open the SD card on your PC? This is not proof of a good SD card.

         Try burning the NOOBS image using a different app.

         Try creating a new SD card using a different computer.

    Raspberry Pi

         I have added a "run" switch to my RPi. On my RPi I would remove that. This is unlikely your situation.

         Is something grounding the run line on the RPi?  Again, this is unlikely your situation.

         Is the power supply not providing enough current?  I can imagine a power supply could provide enough current to turn on the red Led but not boot the RPi.

         The only way to prove it is a bad RPi is to try another one.

     

    I burned a new NOOBS to a used SD card to observed exactly how it reacted. It was different than I had recalled in some ways.

          When I powered the RPi on for the first time. The red LED came on, the green LED flashed for a few seconds, then the green LED flashed quickly every few seconds.

         The green LED  and the Network lights did not come on when there was no SD card.

         The network lights came on when the green LED light started flashing.

         I was not able to SSH from my PC as I had thought I had done before.

         I hope this helps.

  • in reply to pkps1968

    On my RPi 3 the red light comes on and nothing else. Someone else commented on their RPi 2 (?) the green light came on steady which doesn't sound right.  I made a video slide show of the steps I took to install NOOBS on the SD card. See my other comment in this thread.