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No HDMI output

Open ottifant011 opened this issue 1 year ago • 6 comments

@charlysan sorry for spamming the firmware topic, I thought I did something wrong when programming. So I have a fully built card and a card half built and just get no picture output, it is not yet recognized that an HDMI is active. I have the firmware HDMItest on it

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ottifant011 avatar Feb 01 '24 18:02 ottifant011

No worries @ottifant011. I would do the following tests:

  1. Check with different HDMI cable
  2. Check with different monitor
  3. Visually check HDMI connector (pins soldered to pcb pads)

One more thing: be sure to check with firmware included here, instead of using the one compiled by yourself.

charlysan avatar Feb 01 '24 19:02 charlysan

Thanks, tried several HDMI cables, only tested 2 monitors so far and used firmware from github. Hdmi socket optically checked no short circuits visible also measured the resistors to see if there are any short circuits. are there HDMI sockets with different pinouts? i had some lying around and used these too. What kind of monitors do you have? could you look in your company to see if you can find one?

ottifant011 avatar Feb 01 '24 20:02 ottifant011

If it is a monitor, it will work, on HDMI TV is not that easy. I have a Samsung S20B300B, a DELL U2415, an HP 20 inches I cannot see the model and a chinese TV/monitor. If you want to test HDMI, compile and use the HDMI example (with audio) on https://github.com/mlorenzati/PicoDVI That works on any TV & monitor since is a more broadly available standard. Again, I would check HDMI pins are not shortcircuited on resistor pack or in HDMI connector

mlorenzati avatar Feb 25 '24 01:02 mlorenzati

Could somebody please provide the complete functioning-built firmware. I have test ones provided here and my own complied test ones.

Thank you

JmanNZ avatar Jul 11 '24 08:07 JmanNZ

Could somebody please provide the complete functioning-built firmware. I have test ones provided here and my own complied test ones.

Thank you

it´s on the Releases Page

The zip has multiple tests, the one that integrates all is the integrationTest

mlorenzati avatar Jul 11 '24 17:07 mlorenzati

it´s on the Releases Page

The zip has multiple tests, the one that integrates all is the integrationTest

Thank you

JmanNZ avatar Jul 11 '24 20:07 JmanNZ