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[TDA4M] Could you correct EDID of DP on EVM ?

Hi

I found a weird phenomenon on EVM.

It's that display port 0 sometimes doesn't work.

Actually I use a portable monitor which connects to EVM using DP and I also use a Dell U2414H monitor. Their max resolution is FHD as well.

When I use EVM and run some example application such as psd, od and avp,

- If I try connecting to the portable monitor first, I can't see any image on screen. The only message that I can see is No signal.

- If I try connecting to the Dell monitor, It' always normal.

- If I try connecting to the portable monitor after connecting to the Dell one, It's always normal.

I don't think the portable monitor has normal EDID. I think that's why that phenomenon was happened as well.

Unfortunately, the company that made portable monitors couldn't serve any help.

I was wondering If you could help me.

I have an idea. If there is an external EDID on EVM, do you know to correct that EDID like DELL's one?

Best regards

Yongsig