Flicker / blinking problem in preview window after processor upgrade

[Steve Rhoden]

Vegas 10 or 11?
Do you see this same flicker during playback of videos in
your media players ?…(Vlc, windows media player, quicktime, etc)

Steve Rhoden
(Cow Leader)
Film Editor & Compositor.
Filmex Creative Media.
1-876-832-4956

[Chris Estrada]

Vegas 11, sorry for leaving that out!

No, the rendered videos seem okay, although I haven’t made that many since coming back to the program. Also, if I play a file in the TRIM window, there is no problem at all. It just flickers in the main preview window.

I’m not using any effects either. I’m using Vegas just for editing ethnographic-style videos of performances for my research, and the fanciest “effect” I use is usually just crossfading. But I don’t even have any crossfades set at this point

[Nigel O’neill]

Right mouse click in the actual preview window and remove the tick next to Adjust Size and Quality for Optimal playback.

[Chris Estrada]

BINGO!!!!! that seems to have solved it, thank you so much Mr. Nigel!

I would have thought that changing the settings from the drop-down menu would have automatically unchecked that box which I heretofore did not know about.

Sorry for the noob-ish post, I appreciate the quick responses

[Paul Cox]

I seem to have same image flickering problem if I activate GPU acceleration in Video preference settings. Image fine if preview on external monitor activated. I have tried your suggestion of 04/08/2012 but that makes no difference. Preview monitor fine if I switch off GPU acceleration, but if I then use preview on external monitor it is jerky and out of sync and sometimes impossible to return to non preview on external monitor status. Any suggestion gratefully received. Using Vegas Pro 12 with 2 NVidia cards – GTX 520 and 580. Windows 7 64 bit. Here’s some more info if that helps:

System Summary
Motherboard ASUSTeK COMPUTER INC.
Model P9X79 PRO

Bridge
North Bridge Intel Sandy Bridge-E Revision 07
South Bridge Intel X79 Revision 06
CPU
Name Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz
Cpu Socket Socket 2011 LGA
Max CPU Speed 4000MHz
Memory Summary Reported by BIOS
Memory Type DDR3
Installed Memory 32714 MBytes
Available Memory 32713 MBytes
Channels 4
Maximum Capacity 524288 MBytes

[Nigel O’neill]

[paul cox] “Using Vegas Pro 12 with 2 NVidia cards – GTX 520 and 580”

May I ask why you are using 2 video cards? The 580 is a dual head video card. If you need 3 monitors, I would have matched the video cards. The problem may be with your video card drivers being slightly different.

[paul cox] “sometimes impossible to return to non preview on external monitor status”

Are you saying you cannot disable the external monitor? Which video card is connected to the 520 and which is connected to the 580? Have you tried running both monitors off the 580 only or removing the 520 from your system?

My system specs: Intel i7 970, 12GB RAM, ASUS P6T, Vegas Pro 12 (x64), Windows 7 x64 Ultimate, Vegas Production Assistant 1.0, VASST Ultimate S Pro 4.1, Neat Video Pro 2.6

[Paul Cox]

Thanks for replying.
There are 2 graphics cards to run Resolve light. The 520 for GUI and 580 for rendering. I think you must be right that Vegas is confused by having 2 cards. Latest update from Vegas allows me to choose which card to use which has improved things but not completely solved problem. As Vegas seems to preview fine with GPU disabled I think I’ll just live with that.

Thanks again

Paul Cox