Hello Artemka, thanks for contacting us through the Intel Communities.
In regards to the problem you are experiencing of your Dell laptop, I would recommend you to install the latest graphics driver available v3621.
Artemka, could you please let me know where are you getting these names from? (adaptive backlight, adaptive brightness, dynamic contrast, advanced contrast ratio issue)
thanks for your answer, I installed v3621 but it did not help, the problem exists.
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Hi. I've actually registered to specifically answer this problem. You may or may not like the answer.
I just bought a new laptop with the 4600 Intel graphics adapter. I updated all drivers to the latest immediately and I began to see the brightness change when i opened windows on the desktop and went back to it or in videos and even games. I ended up speaking to support at the company I bought it from, all who were baffled.
To cut a long story short I rolled back the intel graphics driver to version 10.18.10.3383 dated 06/01/2013. The problem has gone.
My brightness issues happened especially when connecting and disconnecting the power cable before this also. None of this happens now. Considering I basically only use the 4600 for desktop graphics and i use my nvidia gtx 850m for everything else this is a solution for me.
I hope this works for you. Either way let me know. I think it might have been because the laptop uses a TN monitor which gets confused by the new drivers, but I guess I'll never know.
I look forward to hearing if this works for you.
Rolling back to driver 10.18.10.3621 has resolved it for me. Absolutely nothing else has worked.
Thanks for the feedback Dekken. I'm going to report this behavior.
It appears to be more sinister than previously noted.
From my perspective, it occurs when my laptop is turned on while the battery is charging, once the power is removed, and then re-established the dimming stops.