[G2 General] wulsic:
Sorry for the long post but maybe this is the cause of the screenDamage

Guys in my eyes everything points out to heat cause people got the lines when charging(Maybe fast charge and also since the battery is glued and the phone is so slim also with Zerogap Technology the heat maybe got too hot and the screen got affected)

When gaming the Phone is getting Very hot when playing very big games but Dorimanx kernel seems to be safe locked at 80Degrees.

Etc.

And since i want to buy it i always do research so am i doing on this Important problem. See The Red Bolded Lines of text and my conclusion.

I was googling about the line and got this as result:

Tape automated bonding (TAB) faults[edit]

A TAB fault[3] is caused by a connection failure from the TAB that connects the transparent electrode layers to the video driver board of an LCD.

TAB is one of several methods employed in the LCD display-manufacturing process to electrically connect hundreds of signal paths going to the rows and columns of electrodes in layer 6 (the transparent electrode layer) in the LCD display to the video ICs on the driver board that drives these electrodes.

If an LCD display is subjected to physical shock, this could cause one or more TAB connections to fail inside the display. This failure is often caused by horizontally flexing the chassis (e.g., while wall-mounting or transporting a display face up/down) or simple failure of the adhesive holding the TAB against the glass. TAB faults require replacement of the LCD display module itself. If these connections were to fail, the effect would be that an entire row or column of pixels would fail to activate.

This causes a horizontal or vertical black line to appear on the display while the rest of the display would appear normal

. The horizontal failure runs from edge-to-edge; the vertical failure runs from top-to-bottom.

And also this.

Causes for dead pixels/subpixels

As stated above, dead pixels are an inherent feature of the technology/production process of TFT displays. How many of them are in the final displays sold is just a matter of quality control standards.

Furthermore, they can also accur at random time after production. Transistors can have faults that are not recognizable at production time. These faults may make the transistor stop working after it has been in use for a certain amount of time.

Mechanical or environmental stress (i.e.

heat

) can possibly

damage a transistor, leading to pixel errors

http://en.wikipedia.org/wiki/Defective_pixel

http://www.thinkwiki.org/wiki/Problem_with_Pixel_Error

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So my conclusion is that i personally think the Black vertical lines came from heat issues like flashing roms while charging and some roms may also have a not safe configuration I mean like 2,26 GHZ quadcore also makes alot of heat. Maybe its safe to Underclock it and set a limit on the heat like 70 degrees maybe Max 80 on every Kernel as Standard. Underclocking maybe also saves battery.

And maybe give a warning in each Rom forum or just in general somewhere that benchmarking can also lead to Heat Damage Cause If you touch Something from 80 degrees then you will also getvery hotfingers and even burn your skin so does your G2 also from the inside.

I dont believe That LG had made a High End device without testing it good but they maybe didnt tested it so good on heath if it even happens on stock.

Btw does the Recovery also have something like a Heat limit? If not then we maybe must implant it.

I think i am 100% getting the G2 since i think its just a Heat issue and if we will have in the future every kernel etc with a safe Heating Limit then the vertical lines Problem by users will not occur to users who dont have yet black lines.

EDIT: Maybe If there are Newer revisions of the G2 idk they maybe had something on the back off the screen against heat idk... Zerogap technology doesnt has to do anything with it i guess since my previous nexus 4 also had the same but it never really reached 80 Degrees with custom roms it stayed around the 40-60 by me and with gaming it went till 70 but not higher like 80.

Also in the OP the IRC says already heat damage and also more people who the OP has mentioned. I think we have found our answer and that LG maybe screwed up something in the kernel regarding to the heat but Dorimanx is our Jesus and is making the best kernel which probably also prevents the Vertical lines in the last update.

I also was still searching for heat issues when it would become dangerous and i have found this posted by a person

Chips are NOT reference designed to withstand more than 85-90 Deg

. Sensors are not always accurate. If you get the WHOLE CPU soaked at 90 – 95 Degrees it will slowly burn the chip if it has no cooling.