dmesg | grep voltage
[ 2.659756] [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up
[ 936.220837] [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up
[ 3230.334988] [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up
[ 4568.440454] [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up
same issue with Asus ux21a, 3.16.0-24-generic:
dmesg | grep voltage dp_start_ link_train] *ERROR* too many voltage retries, give up dp_start_ link_train] *ERROR* too many voltage retries, give up dp_start_ link_train] *ERROR* too many voltage retries, give up dp_start_ link_train] *ERROR* too many voltage retries, give up
[ 2.659756] [drm:intel_
[ 936.220837] [drm:intel_
[ 3230.334988] [drm:intel_
[ 4568.440454] [drm:intel_