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Comment by slipheen | Hacker News Reader

Relatedly, is there a good archive of EDID binaries somewhere, or a better program to make them?

I have an nice programmable EDID emulator plug, and I can clone my monitor and others, but there's some times there's a specific resolution or feature I want to set and I don't have a way to. (Like 8K with DSC, etc)

I'm aware of https://github.com/bsdhw/EDID but it's rather limited in terms of modern monitors.

I've also written by own using https://www.analogway.com/products/aw-edid-editor but getting all the nuances of various modes, and setting preference order, etc, is rather difficult, at least for me :)

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I have (too much) experience in EDID editing. My suggestions:

- AW EDID Editor as you mentioned.

- CRU is a Windows-only tool, and will modify the EDID files it dumps from monitors (removing serial/etc. descriptors to make room for detailed resolutions), but will work. It does not run under Wine.

- 010 Hex Editor has an EDID template.

- On Linux you can install wxEDID from Flatpak (IIRC the distribution packages would crash in WxWidgets). I don't think it can create sections though.

- v4l-utils has edid-decode (which can be used as a git diff textconv tool), though this does not help you encode EDID files.

I found that HDMI EDIDs have a CEA extension block while DP EDIDs have a DisplayID extension block. I haven't done any work in multi-page EDIDs with over 256 bytes (and don't know what EEPROM chip you'd use to emulate them, nor the protocol or APIs to read and write them).

https://www.extron.com/product/software/edidmanager30

https://www1.kramerav.com/au/product/edid%20designer

Both are free but not free to distribute. The Extron one may require you to be working on projects / orgs using their hardware.

I had a similar problem recently: I got this cheap 5.1 surround system soundbar that support up to Dolby TrueHD via HDMI. But here is the catch, it only works with eArc enabled devices (new gen TV). If you plug your PC you need to use SPIDF or aux which hamper the quality. One solution beside buying an audio ectractor/splitter is to fake the PC edid to be reconized as eARc by the soundbar. Still yet working on this, no strict guidelines existing unfortunately.

What programmable EDID emulator plug do you use? I was recently looking into them, and it wasn’t clear what devices had what features, or if any (cheaper) ones were any good.

https://www.store.level1techs.com/products/p/5megt2xqmlryafj...

Ah. Any affordable alternatives? Or just hacking cheap ones.

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