I'm trying to read the EDID information from my BenQ W1070 projector which is connected to my Raspberry Pi via HDMI.
I have every generation/version of Raspis available, but am currently testing on my Raspberry 3 B.
Raspbian GNU/Linux 8 (jessie).
I'm tried several ways of reading the EDID, each failed, probably because I don't see any i2c devices in
root@pithree:~# tvservice -d dump Nothing written!
2.) get-edid from the edid-tools package:
root@pithree:~# get-edid This is read-edid version 3.0.1. Prepare for some fun. Attempting to use i2c interface Looks like no busses have an EDID. Sorry! I'm sorry nothing was successful. Maybe try some other arguments if you played with them, or send an email to Matthew Kern <email@example.com>.
i2c-dev module is loaded:
root@pithree:~# lsmod | grep i2c
i2c_dev 6913 0
3.) Since I see no i2c bus,
i2cdetect from i2c-tools and tools like
https://github.com/bulletmark/edid-rw are also not working. (no
4.) I tried getting the EDID information from the i2c EEPROM data, but this also failed: No devices or other data under
(Some pages explain that under this path there should be the EEPROM data accessible, e.g.
/sys/bus/i2c/devices/3-0050/eeprom, but I don't see anything here. Yet I was not able to find and load the eeprom module (via
modprobe eeprom - maybe somebody has some hints where the eeprom module comes from?)).
Can anybody point me to the reason why all the above is failing for me? Or any other pointers how to completely read the EDID data of my projector?