Originally Posted by moccor
Something I would like to know because its kinda annoying. When I had my GTX 260, having Windows 7 set to duplicate display would cause screen tearing. That's fine, GTX 260 was good for its time but 2 screens was really meant to be the max for that card. Now I went to a HD 7770, no screen tearing when gaming and duplicating the screen. Moved to the GTX 760, screen tearing. All have VSYNC enabled, I like VSYNC because it removes the tearing from games. Well with or without it, I receive the tears. Any way to fix it? I tried using Adaptive Vsync on games and it seems liek it does nothing. I don't see why the AMD card would perform fine like this and both Nvidia slack at it
With Win7 i've noticed tearing sometimes with dual screens whenever Aero theme is not used with an nVidia card. So experiment with and without an Aero Theme and see if Tearing goes away with Aero enabled.
As far as Screen tearing in games with Adaptive V-sync and a single video card... well that's because Adaptive V-sync disables V-sync much of the time.
It's called 'Adaptive'
for a reason.
And with a single vid card it (V-sync disabled by Adaptive V-Sync) is more likely to happen because a single card is less powerful.
The following quote explains Adaptive V-Sync turning v-sync on and off: (It works the same with a single video card but is more of an advantage to SLI users.)
The interesting part of SLI starts with how nVidia added Adaptive v-sync and has it has enormously helped Micro stutter! See, it use to be that v-sync removed Micro Stutter BUT, it could "Half" ur FPS if performance drooped just a single percentage below ur Monitor's refresh rate. And that caused ur FPS to get chopped in half from say example 60 to just 30 FPS. And that could get chopped in half (Halfed) too, down to 15 FPS if performance dropped a single percentage below 30 FPS on a 60Hrz LCD.
But, Adaptive V-sync will simply temporarily disable V-sync to completely remove all "Halfing". And Adaptive V-sync can switch on and off continuously in just a few MHz.
And if u enable Adaptive V-sync in the nVidia Control Panel (i'd recommend individually for each necessary game) it doesn't matter wat game u want to use it on or wat in-game settings u have or haven't enabled, because it overrides ur game's settings.
(even if V-sync is disabled in in-game settings, Adaptive V-Sync in the nVidia control panel enabled overrides it and it works.) NO MORE FPS cut in half! thumb.gif
To diagnose Screen Tearing in Games:
(Edit: Also, these instructions are very good for understanding "How To", properly use Game Profiles in the nVidia Control Panel.)
1. Open the nvidia control Panel and on the left side expand "3D Settings" category, and select "Adjust image with preview".
2. Then on the right side, the best thing to select for a Gaming PC is the default, "Use the advanced 3D image settings". So make sure it is still selected. And always leave it as is. Don't ever change anything on it.
3. Then on the left side select "Manage 3D settings", and on the right, on the "Global Settings" Tab, select the "Restore" button a little lower on the right. Then be sure to hit Apply button on the lowest right. And always leave everything like it is on that "Global Settings" Tab.
4. Next to the "Global Settings" Tab, select the "Program Settings" Tab and remember to use the individual templates on this Tab for each of ur individual vid games. But don't adjust anything for 3D
desktop applications on this Tab. Just really on using an Aero Theme to keep the Desktop and all 2D applications looking nice. There shouldn't be tearing on the desktop with an Aero theme enabled.
5. Disable the Aero theme just before playing a game. Or else u may get that nag screen from Windows telling u to disabled Aero theme for optimal gaming performance.
It's hard to diagnose screen tearing in games. On the Program Settings Tab in the nVidia control Panel, make sure a game u want to test has the Restore button greyed out. That means it is all default. If it's not greyed out click it and select Apply. Then test a game using just the game's in-game V-sync option.
And if an individual game fails to give u proper v-sync (and instead u get screen tearing) when u use the in-game settings, try using the Template in the nVidia control panel for that particular game and turn v-sync on there. Then see if screen tearing goes away. U could try Disabled
in the NVCP
(nVidia control Panel). And u could try Enabled
in the NVCP
Edit: and for duplicate displays, why not use a physical video switch that costs no more than $25!? and stop forcing ur video card to drive two screens. Edited by Bee Dee 3 Dee - 10/26/13 at 9:20am