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No HDMI output #39

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ottifant011 opened this issue Feb 1, 2024 · 6 comments
Open

No HDMI output #39

ottifant011 opened this issue Feb 1, 2024 · 6 comments

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@ottifant011
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@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

WhatsApp Bild 2024-02-01 um 18 05 40_78669cde

@charlysan
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charlysan commented Feb 1, 2024

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.

@ottifant011
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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?

@mlorenzati
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mlorenzati commented Feb 25, 2024

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

@JmanNZ
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JmanNZ commented Jul 11, 2024

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

Thank you

@mlorenzati
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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

@JmanNZ
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JmanNZ commented Jul 11, 2024

it´s on the Releases Page

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

Thank you

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