I have a Kabylake GPU (i7700K) and I can't control my monitor with it using ddcutil.
It only sometimes work and most of the time spews i2c errors.
I also tested on my laptop which has Skylake GPU and I see the same issue.
The same monitor works with my nvidia GPU and when connected via VGA<->DP adapter to the notebook.
I will soon provide all the debug logs i could gather, but meanwhile maybe this is known issue?
For reference I used 4.12 kernel on the Kabylake GPU.
Best regards,
Maxim Levitsky
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