Question / Help Screen tearing with Disable Aero, because Aero is linked to V-Sync. No issue with OBS

[gilgamix]

Whenever OBS is just running, I get screen tearing. It's more noticeable on games, but it can even happen on menus and just on web browser windows when scrolling. However, when I stream out, the video on the stream is perfect, no issues on it.

e: and as a note, the only requirement is that OBS is running. Even when not streaming or with the preview closed, there's tearing.

Log: https://gist.github.com/0bd900569b2a114ff915b19555f19736

 

[C-Dude]

Its probably the performance difference when opened vs closed. Turn on VSync or Tripple Buffering in game to remove tearing.

 

[gilgamix]

That was my initial thought, but the effect is visible with *only* OBS Studio and a browser open. If I have OBS open and drag a window left and right, there's tearing. As soon as I close OBS, it's smooth. No game running, and a game running doesn't seem to make it worse, but that's just hard to confirm.

I messed around a bit more and unchecked "Disable Aero" and the screen tearing stopped, but then my FPS dropped. Once again, it happens without a game running, and having a game running doesn't seem to make the effect worse.This time though it seems like the FPS drop translates to the outputted stream video.

 

[gilgamix]

Whoops, today I learned that Windows 7's V-sync is entirely dependent on Aero being enabled. It turns out games can get around this with their own V-sync by running actually at fullscreen, or "exclusive full screen", not borderless windowed mode.

 

[Joe33345]

Yeah. Windows 7 borderless windowed games do screen tear if Aero is disabled and vsync. Windows 10 do not, but only if vsync is enabled of course.