Laptop problem?

Question

laptops

Such a problem, on the Asus K52 laptop, there are noises in the image (mainly on white and other light colors), if you look at the screen not directly, but at an angle (if you look directly at the screen, then everything is fine). What could it be? The nature of the noise is like television interference.
I checked under Windows 7 on native drivers (from a disk from a laptop) and just booted from Ubuntu LiveCD - the effect is the same.
By the way, “phonite” is not everywhere - for example, nothing like this is observed against the background of writing this message, but in the place where the tab tab is “adjacent” to the address bar (Chrome) - just ...
PS: When changing the mode from True Color (32 bits ) on High Color (16 bit) the effect becomes weaker, but does not disappear.
I am lost in conjectures ... Habr, tell me, please ...

Answer 1

My first thoughts are 2:
1. Perhaps there are problems with the cooling of the graphics subsystem.
2. Perhaps the graphics subsystem is screwing up.
I think it's time to take it to the SC.

Answer 2

I saw very similar symptoms on a cheap HDMI cable. It seems like a figure, but the noise is completely analog. They are called snow.
Yes, another question - has it always been like this, or has it appeared over time?

Answer 3

on the MSI Wind U12 laptop, when you connect a Full HD TV set via HDMI and play 720p video, “snow” generally appears. the cable is normal, it does not “snow” from other sources. "snow" does not appear on the laptop's native monitor either. I attribute the effect to weakness and overheating of the vidyahi, tk. The laptop is clearly not designed to play hd videos on fullhd screens. (when the resolution is reduced to 720p, the snow disappears)
and a glitch similar to yours was observed on some samsung monitors connected via dsub with an overestimated contrast and a shitty “pixel hit” setting (I don’t know what it’s called, in general, when the picture can be moved a little, trying to the point was not blurred into several cells)

Answer 4

What kind of laptop, IN(intel/nvidia) or AB(AMD)?
Try to connect an external monitor to discard the matrix and cable malfunction.
Disable composite if present.
//K52IN, there are no such problems.

Answer 5

This is a defect in the matrix.
In general, in inexpensive asuses, there is a problem with the screen of the laptop, then their loops break, then the cable, so the matrix is ​​​​defective.

Answer 6

it's just that on cheap matrices, pixels show 6 bits instead of 8, the rest of the colors are achieved by flickering.