Image quality drops on full screen

Question

YouTube

Greetings.

Tell me, what could be the reason for the fact that when you turn on fullscreen on YouTube, the quality of the picture drops (that is, regardless of the selected image quality + the player itself becomes “square”)?

Here, for example, full screen mode looks like this .

And window, yes .

It's not hard to see the difference, I think.
This happens in all browsers that I have installed. Chrome, Firefox, IE.

Does anyone have any suggestions how to fix this?

Answer 1

Updated drivers and it's gone...

Answer 2

Lenovo T410, 1440x900, i5 520M, Intel HD Graphics - same issue. It repeats only with flash video, html5 video on the same YouTube increases without problems. Yes, that's the trouble: YouTube does not display all the videos in the html5 player, about 40% of the content I view.
Lenovo X201T, 1280x800, i7 620LM, Intel HD Graphics - almost the same hardware of the same generation, the problem is not observed.
In what settings I haven’t been picking, I can’t find the root of evil.

Answer 3

what should a pixel stretched by 4 times look like?

Answer 4

I assume that the problem is in software rendering. On another machine, when fullscreen is enabled, accelerated video rendering is enabled, while I still have software video rendering. Although it is still not clear why the soft renderer cannot render everything normally.
Z.Y. I repeat that the problem is only on youtube. vimeo, vk - video ok.

Answer 5

generally speaking, when smoothing is enabled in flash, the video is smoothed if, for example, it is of the original size 640x480, and it is stretched to 1280x800. If the video is viewed in 640x480 and displayed with "squares", then anti-aliasing does not work.

Answer 6

Turn on hardware acceleration in settings.