[fedora-arm] Re: Questions about supported hdmi display

[proton fedora]

I see.
1)For starters I would assume that Most China custom display to be not 
compatible with the fedora ARM.
Secondly, its probably safe to assume that any decent projector that support 
1080p with 60fps and if stereo audio works properly
I would propose that we test and assume that the kernel display support is at 
least backwards compatible.
Maybe we coud include these infomations into the official documentation like 
here?https://docs.fedoraproject.org/en-US/docs/ or 
https://fedoraproject.org/wiki/Architectures/ARM/Raspberry_Pi
honestly the documentation site is too dispersed,even if we put it in the docs 
there is no 100% guarentee that 1 facing that problem can find it.

and in the case of kernel display support is not backward compatible..(we 
should propose making that a thing,like come on,display is essential in modern 
days.)
We can have no audio,or no keyboard backlight support by default.
But lack of display support is just straight up horrible exeperience,you cannot 
use it literally(dont even think about youtube,surfing 
https://docs.fedoraproject.org/en-US/docs/ or open terminal)
It will force end user to use tty or something while praying they have a 
secondary device to search for solution.

2)In the case of having an unsupported display is there a way for us as end 
user to make it to work?or is it a impossible without fiddling with the kernel 
source code?
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[fedora-arm] Questions about supported hdmi display

[proton fedora]

as shown in 
https://discussion.fedoraproject.org/t/research-and-updating-of-docs-for-hdmi-display-supported-supported-hdmi-driver-by-rasp-pi-4-in-fedora-workstation/80059
it would be great to update the docs which tell users which drivers or display 
is supported.
or how to get the driver required to support some device.

To find which drivers are not supported in fedora wrokstation.
- ARM with Fedora Workstation connected to HDMI projector works.(which means 
the OS works and some HDMI driver/display is supported)
- The custom display works with windows silverblue(which means its 
something probably only fedora ARM havent supported or at least not included in 
stock OS)

I see other suggest>supply EDID data via the kernel command line.however my 
device is on 1st boot and of course there is that process that needs display 
more than anything.
OS personalization setup at 1st successful boot.
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