Hi, I'm completely new here. 😇
I have extensive experience with the Quantum Data 780e HDMI/DisplayPort/HDBaseT generator, I also programmed its complete control via USB/UART and revealed a number of errors and shortcomings in it.https://www.quantumdata.com/780e.html
I also have experience with the Omnitek Ultra 4K Tool Box, which was recently purchased by Intel and is almost no longer supported.http://www.postium.co.kr/support/file/brochure/Omnitek_4K_toolbox.pdf
I also play with HDMI 2.0/SDI 12G video converters from BlackMagic and AJA and other video equipment from Gefen, Astro or Kramer.
I really want PGenerator to work on Raspberry Pi 4B so that I can generate HDMI 2.0 UHD and 4K signals with it, such as VIC 97 (3840x2160p60), because QD780E is really terribly slow and unreliable product.
I can capture video by "my own", more precisely from a friend, frame grabber (and generator), built on Intel Arria 10 FPGA (inputs/outputs HDMI 2.0 and 12G SDI) and I can confirm not only a bit of perfect data transfer, but also the validity of AVI infoframe, clock accuracy, compliance with CEA/CTA and VESA standards and so on.
Personally, I have generated dozens of 2D interesting bit of perfect test patterns and animations (for measuring input latency), as well as 3D patterns (eg from Big Bugs Bunny), and in my collection I also have nice shapes from Quantum Data, Omnitek, Murideo, Väinö Helminen, and also something for HDR and BT.2020.
I also know a lot about EDID, I have read the standard quite well and I can test the causes of special errors that a faulty EDID can cause, such as the missing bit that it is an HDMI interface without which Intel graphics do not work.
I also have a lot of experience in the past with calibrating LCD monitors with X-Rite i1Basic Pro 2 with Argyll + DisplayCal, and now I have a Minolta industrial probe available from a friend, but I haven't played with it at all yet. 😉
So what can I do to extend PGenerator support to RPi 4B and how can I help?
I read this whole thread and nowhere did I see the summarized reasons for not supporting RPi 4B. I'm sorry if I missed it somewhere.
Unfortunately, I'm not the owner of RPi 3B and I have no experience with it to be able to distinguish the differences in the video core of RPi 4B, but here I sense the problem that there is quite a different graphics core and architecture around.
I hope this post will help find a way for PGenerator to support RPi 4B soon. 🙂
Thanks for your attention!