Hello Tom,
Today I found strange flickers on the screen of my 1-year old Compact SCO17M19. (LG LP173WFG-SPB1 screen)
Here is example video, please look to very fast blinks on left bottom on first, and right side on second clip.
https://youtu.be/9KRHxf2uebg
https://youtu.be/U8-JUfIyYE4
This effect best observed with minimal screen brightness, but at 30% it can be seen too, if you know what you want to find. At 100% screen looks perfect.
I tried to find some correlation with temperature, laptop load, fan speed, also I tried to apply light pressure to the panel cover - found nothing, seems that this flicker appears randomly.
So, seems that this is fault of some backlight elements in PWM mode. Now it looks not very good, but I not ready and not want send it for repair.
May be this is known panel bug? What I can expect, will it get worse?
Roman