Hi Sonika,
A kernel bug report was opened against Ubuntu [0]. After a kernel bisect, it was found that reverting the following commit resolved this bug:
commit 237ed86c693d8a8e4db476976aeb30df4deac74b Author: Sonika Jindal sonika.jindal@intel.com Date: Tue Sep 15 09:44:20 2015 +0530
drm/i915: Check live status before reading edid
The regression was introduced as of v4.4-rc1.
I was hoping to get your feedback, since you are the patch author. Do think increasing the number of tries in intel_hdmi_detect() is worth trying? Do you think gathering any additional data will help diagnose this issue, or would it be best to submit a revert request?
Thanks,
Joe