I have a NUC with i5-6260U and Iris 540 CGU. Win 10. I suspect it has a HW problem. Need appropriate diagnostic tool or a good advice.
The problem - sometimes get some random "dirt" on generated pictures. The dirt color is pure Magenta. The dirt is always is a single line high and random, small number of pixel wide. When it happens there are many lines, usually grouped at the same region in the picture, sometimes forming a diagonal sequence.
I think it must be HW. Don't know how to proceed.
Already ran the test. no problems.
Also ran mdsched memory test. No problems.
Tried to update driver - already uptodate
NUC - NUC6i5SYH
Win 10 PRO version 1903 build 18362.356
Driver - 188.8.131.5273
After installing the latest DCH driver, you will not see any more Intel Graphics Control Panel. It is removed according to Microsoft Request from the driver. Instead you will have in Start Menu, under letter "I" Intel Graphics Command Center.