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BertoldVdb
Setting runtime EDID on MS2109
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?
You can't edit the CODE region as it is in ROM, I will email you something to try.
It did work! Thank you! It took some messing around with to get it working. I finally took the edid from your edid_change.bin and 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?
Hello,
No, it is possible to do it at runtime as well, but I wanted to try a simple method first. I will try to document it some time in the future.
Sincerely, Bertold
Op wo 25 okt. 2023 22:14 schreef Ayrton Sparling @.***>:
It did work! Thank you! It took some messing around with to get it working. I finally took the edid from your edid_change.bin and 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?
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