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Raspberry Pi Forum No HDMI signal
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  • raspberry_pi_getting_started
Related

No HDMI signal

Former Member
Former Member over 10 years ago

Raspberry Pi 2,  when I power up I have red and green lights on MB but monitor display 'No Signal'?

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  • clem57
    0 clem57 over 10 years ago

    Take a look at Raspberry Pi • View topic - Pitfalls for beginners & Power / Start up issues | Raspberry PI Community Projects for some help. Also try another HDMI cable. Some do not carry all the signals needed.

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  • clem57
    0 clem57 over 10 years ago in reply to clem57

    Have you solved the issue?

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  • Former Member
    0 Former Member over 10 years ago

    I am having the same issue with a new out of the box Pi 2 Model B. Attempting to run Kali Linux

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  • clem57
    0 clem57 over 10 years ago in reply to Former Member

    Are you providing for at least 1 ampere current? Most USB from computers are limited to 500 milli amperes or only half what you need.

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  • Former Member
    0 Former Member over 10 years ago in reply to clem57

    I am using the cana kit raspberry pi power cable thats certified for Pi 2 Model B

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  • clem57
    0 clem57 over 10 years ago in reply to Former Member

    Green LED blinks in a specific pattern

    With recent firmware, according to this forum post the green light will blink in a specific pattern to indicate some types of errors:

    • 3 flashes: loader.bin not found
    • 4 flashes: loader.bin not launched
    • 5 flashes: start.elf not found
    • 6 flashes: start.elf not launched

    If start.elf won’t launch it may be corrupt and can be replaced with arm240_start.elf or any of the other armXXX_start.elf files.

    Coloured splash screen

    Debug-screen.jpg

    Do you see any of these?

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  • clem57
    0 clem57 over 10 years ago in reply to Former Member

    9. VGA ADAPTER CABLES CANNOT WORK

     

    If you have a VGA monitor, you cannot just use a HDMI-VGA passive cable, since the Pi's HDMI Port cannot generate analog signals, and a HTMI to VGA cable is just some connectors and copper wires, they cannot convert the digital HDMI signals to analog VGA signals.

     

    You may either:

    1. Get an active converter box from HDMI to VGA, if you have an older A or B preferably use a converter with its own power input, YMMV if you do not.

    2. Use Gerts cheap VGA adapter for the B+ that works by directing video data to the GPIO pins, then using simple D/A converters consisting of carefully chosen resistors.  http://www.raspberrypi.org/gert-vga-adapter/

    3. Check on the back of your VGA monitor to see if there is, next to the blue VGA connector, a white DVI-D connector, if its really a DVI-D connector (not a DVI-A connector) then you can use a simple HDMI to DVI-D cable, as both standards are based on the same digital technology.

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  • Former Member
    0 Former Member over 10 years ago in reply to clem57

    I was able to get it to boot by reformatting my SD card and loading g NOOBS instead of KAli Linux and it booted up fine. I was an issue with my image so I would suggest to the OP, try reloading your os image on the card.

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  • clem57
    0 clem57 over 10 years ago in reply to Former Member

    Kali Linux may not have the Raspberry Pi 2 required files. Thanks for the update.

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