Hello,
I have two UP2414Q connected to a MacPro using the mDP-DP cables that came with the monitors. I'm using them both at 4K max resolution 60 Hz with 1.2 turned on.
UP2414Q, S/N CN-0WWRHC-74445-42M-251L, REV A01
I observing the following problem:
When the monitor is turned on or wakes from sleep, the intensity of the backlight will change at random times during the first 10 minutes. Once the monitor is "hot", the backlight intensity doesn't change any more. Note: I am not 100% sure it is the backlight that changes, but at random intervals the image flickers and the image feels suddenly subtly different. I first thought it randomly changed color profiles, but after careful consideration I think it is the backlight intensity that varies. It would go from let's say 20% to 30% and then back to 20% and then back to 30% every 30 to 90 seconds until it stops changing after 10 minutes approx. My other UP2414Q (S/N 181L) being turned on at the exact same time (same computer) doesn't do this. Is this a hardware problem?
UP2414Q, S/N CN-0WWRHC-74445-42M-181L, REV A01
The following problem is different and appears only on the serial number above. When the MacPro wakes from sleep this monitor doesn't wake up while the other one does. I have to power it down and up so it's seen by the Mac again. Is this a hardware problem?