Tearing in video preview

Cheesehole wrote on 5/22/2007, 10:52 AM

I have a new PC with a new NVIDIA 8800... and I can't believe it but I'm having tearing problems in the preview window like it can't paint the screen fast enough. I built three identical machines except the other two have NVIDIA 8600's and they all have this problem. Sometimes it's so bad that there's an awful warping effect on the whole video. Sometimes it clears up and doesn't bother me. Anyone else see this?

Q6600 / 2GB RAM / NVIDIA 8600/8800
Vegas 7d/e

Comments

Former user wrote on 5/22/2007, 11:02 AM

What is the refresh rate of your monitor?

Dave T2

FrigidNDEditing wrote on 5/22/2007, 11:18 AM

I've only seen things like that when they are squeezed in the preview, there can be hideous tearing, but if it's full size I don't see anything. I'm using an nVidia card (not the 8600/8800).

Dave

Cheesehole wrote on 5/22/2007, 11:40 AM

Tried various refresh rates, CRT and LCD... the results were the same.

Yes it's definitely much worse when squeezed in the preview. The warping effect especially.

But the tearing is still present when the video is at 100%. Sort of crawls down the preview window sometimes like sync lines... so it definitely seems like a sync issue. Like if you played a game with V-sync turned off. The tearing is NOT present when at full screen on the secondary preview monitor.

I'm wondering if it's the CPU... the new NVIDIA drivers... BIOS settings?

One of the 3 identical systems is running XP 32 bit and the other two are XP 64 so I know it's not an XP 64 issue.

farss wrote on 5/22/2007, 1:27 PM

It seems to be a sync issue, not anything wrong with the hardware as such. I've only noticed this with V7 and the system with dual monitors. Try disabling the second monitor in the driver and see what happens.
Even with V7 I don't see the problem on my old P4 system with only 1 display. Yet it's very bad on my dual Xeon with two monitors but I think only with V7. Well at least V7 fixed the hideous aliasing in PAL on the preview monitor.

Bob.

Marton wrote on 10/18/2012, 7:34 AM

What can we do with the horrible tearing in V11?
I have i7 cpu with 8GB ram, intel graphics, LG Cinema 3D monitor, and when i playback TD10 footage, i get strange horizontal tearing in preview window. It doesn't matter if good/best, half or full quality, i even checked the wait for vertical sync in preview device preferences, but still its there in preview window and also in full screen.
CPU usage is 30% max. What else can i do?
thx

megabit wrote on 10/18/2012, 8:08 AM

" I've only noticed this with V7 and the system with dual monitors."

Interesting - I can see it in all Vegas versions, with all nVidia drivers - but only when using a single monitor (and switching it to full-screen preview). The same project, the same computer - on the Windows Secondary Monitor it plays full screen without any issues...

Go figure

Piotr

PS. BTW, it would be nice if SCS implemented the right mouse button as the ESC key equivalent to leave full-screen preview; I'm sometimes too lazy to reach to the keyboard with my left hand :)

TheHappyFriar wrote on 10/18/2012, 8:42 AM

wow, talk about bringing a thread back from the dead! :D

Take a screengrab of your screen. IF it's in the screngrab it's most likely a GPU issue. If it's not there it's something between the GPU & monitor. I've never had tearing in video preview/render with a single or duel monitor. I've had stuff that LOOKs like that but it's electrical interference from the monitor's PSU.