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Setting runtime EDID on MS2109 #13
Description
I decided to create this issue to keep from spamming #10.
The only place I was able to find the EDID was in the CODE region. RAM and EEPROM did not seem to contain the EDID.
The following returns the edid on an MS2109.
$ sudo ./cli read CODE 0x7738 256
Trying to write an EDID to it however returns the following:
$ sudo ./cli write-file CODE 0x7738 /tmp/edid.bin
cli: error: Memory can't be written
I assume this is because it's the CODE region and cannot be written to.
Am I just not looking at the RAM region the right way to find the EDID in it?
Activity
[-]Setting runtime edid on MS2109[/-][+]Setting runtime EDID on MS2109[/+]BertoldVdb commentedon Oct 24, 2023
You can't edit the CODE region as it is in ROM, I will email you something to try.
FallingSnow commentedon Oct 25, 2023
Got your email. I'll test it tomorrow.
FallingSnow commentedon Oct 25, 2023
It did work! Thank you! It took some messing around with to get it working. I finally took the edid from your
edid_change.binand slightly modified it and it took.Since this exists in CODE I'm assuming it is not possible to change the edid without flashing the EEPROM and resetting the device?
BertoldVdb commentedon Oct 29, 2023
FallingSnow commentedon Oct 31, 2023
Awesome, thank you for taking the time to work on this Bertold!
1248429482 commentedon Nov 26, 2023
Send me a thank you 1248429482@qq.com