Closed timakro closed 6 years ago
This utility just writes to the file device and if the OS fails to do that then your should see an exception on your screen. Since you are not seeing that we can assume the write is proceeding successfully and thus perhaps your device is receiving but not storing the new EDID?
Sorry, I am not an expert in this stuff. I wrote this little utility many years ago for my own one-off use and then posted it here where it seems to have be off some value to various others.
Okay, thanks for having a look anyways. This issue is not related to your tool so I'll close this.
FWIW, I have the same problem trying to overwrite the EDID of a BlackMagic Teranex Mini HDMI to SDI 12G. Everything seems to be working, but when reading the value it's still the same.
The correct one seems to be number 4:
Address 0x50 is present, I can read using your tool and get plausible data with
sudo ./edid-rw 4 | edid-decode
. When writing my modified data usingsudo ./edid-rw -w 4 <edid.bin
your tool doesn't report any errors. But when reading the data again nothing changed. Also tried to remove my monitor from power between writing and reading, didn't help.Do you have any ideas why this doesn't work? Should I try to write the EDID to my monitor using another GPU?