This is my first post at xda, so first i'd like say welcome to all community
Ok, lets back to the topic. So, few weeks ago I noticed a strange artefact (or something like that, I don't know how to really name it) on screen, it usually appears when I pull down status bar, especially on app with white background, its looks similar to this (screenshot in attachments) but its only white and black, it appears on bottom part of the screen, like a straight line, coming from left to right, I can't get a screenshot of this coz it appears only for a second, then dissapear. Firstly it appeared when I was using a dirt unicorns ROM, then I switched to SlimBean ROM with the Temasek kernel, but it also appeared on stock kernel. Should I ignore it, or it is damaged screen or GPU and is there any chance to fix it?
Oh, and sorry for bad English