Overclock.net › Forums › Components › Monitors and Displays › [TFTCentral] Acer Predator XR341CK 34" Curved Gaming Screen with G-sync
New Posts  All Forums:Forum Nav:

[TFTCentral] Acer Predator XR341CK 34" Curved Gaming Screen with G-sync - Page 520

post #5191 of 6126
Quote:
Originally Posted by telc View Post

Enabling G Sync for windowed and full screen mode works great on Black Ops III.


18 mins left for full download on steam biggrin.gif I hope input mouse lag is fixed though. I heard it was horrible since BO1.
post #5192 of 6126
Quote:
Originally Posted by telc View Post

Enabling G Sync for windowed and full screen mode works great on Black Ops III.


I'm not saying it didn't work in one setting Vs the other, i was saying at least I and 1 other user here experienced significantly higher frame rates with g-sync set to full screen only in the nvidia control panel vs full screen+Windowed mode. No idea why since I (and the other guy as well) game in full screen mode only so the settings should yield identical frame rates, but they don't. You might do a frame rate comparison of the two settings.
post #5193 of 6126
Quote:
Originally Posted by skypine27 View Post

I'm not saying it didn't work in one setting Vs the other, i was saying at least I and 1 other user here experienced significantly higher frame rates with g-sync set to full screen only in the nvidia control panel vs full screen+Windowed mode. No idea why since I (and the other guy as well) game in full screen mode only so the settings should yield identical frame rates, but they don't. You might do a frame rate comparison of the two settings.

I should have elaborated more - Enabling G Sync for windowed and full screen mode was the only way I could Black Ops III to run at 100Hz refresh.
MyRightNut
(13 items)
 
  
CPUMotherboardGraphicsRAM
5960X Asus Rampage V 2 X MSI 980 Ti Lightning 16GB 
PowerCase
corsair 1200i Caselabs Magnum TH10A 
  hide details  
Reply
MyRightNut
(13 items)
 
  
CPUMotherboardGraphicsRAM
5960X Asus Rampage V 2 X MSI 980 Ti Lightning 16GB 
PowerCase
corsair 1200i Caselabs Magnum TH10A 
  hide details  
Reply
post #5194 of 6126
G-sync clock/power bug at high refresh rates recognized by Nvidia http://www.pcper.com/news/Graphics-Cards/NVIDIA-Confirms-Clock-Speed-Power-Increases-High-Refresh-Rates-Promises-Fix#comment-288962 Next driver set to have solution.

Will it solve scanlines? Fingers crossed folks.
post #5195 of 6126
Quote:
Originally Posted by Mountainlifter View Post

G-sync clock/power bug at high refresh rates recognized by Nvidia http://www.pcper.com/news/Graphics-Cards/NVIDIA-Confirms-Clock-Speed-Power-Increases-High-Refresh-Rates-Promises-Fix#comment-288962 Next driver set to have solution.

Will it solve scanlines? Fingers crossed folks.

A quick scan of that link made it seem not relevant. It was talking about an increase in clock speed / power consumption when the gpu(s) were in idle.

Who cares what they're sucking at idle? Unless I missed a part about the card(s) misbehaving under heavy gaming load?
Edited by skypine27 - 11/7/15 at 1:34am
post #5196 of 6126
Quote:
Originally Posted by Mountainlifter View Post

G-sync clock/power bug at high refresh rates recognized by Nvidia http://www.pcper.com/news/Graphics-Cards/NVIDIA-Confirms-Clock-Speed-Power-Increases-High-Refresh-Rates-Promises-Fix#comment-288962 Next driver set to have solution.

Will it solve scanlines? Fingers crossed folks.

Awesome find! +1 for you
post #5197 of 6126
Quote:
Originally Posted by skypine27 View Post

A quick scan of that link made it seem not relevant. It was talking about an increase in clock speed / power consumption when the gpu(s) were in idle.

Who cares what they're sucking at idle? Unless I missed a part about the card(s) misbehaving under heavy gaming load?

Quote:
Originally Posted by telc View Post

I should have elaborated more - Enabling G Sync for windowed and full screen mode was the only way I could Black Ops III to run at 100Hz refresh.

Ahh ok thanks. I had similar issues with Arma 3. The only way I could get it to display >60 fps was to do an edit of the .cfg file. There was no ingame setting to adjust max refresh rate but if you look in the cfg file with notepad there is a "max frames per second=60" or something similar that you can change.
post #5198 of 6126
Quote:
Originally Posted by skypine27 View Post

A quick scan of that link made it seem not relevant. It was talking an increase in clock speed / power consumption when the gpu(s) were in idle.

Who cares what they're sucking at idle? Unless I missed a part about the card(s) misbehaving under heavy gaming load?

I can offer some speculation.

fact 1: We do not know the cause of the scan lines other than that it appears when G-sync is turned on.
(Some folks originally reported that OC also needs to be ON on the monitor OSD but I think this has been disproved.)

fact 2: We know that running at higher refresh rates, closer to 100, reduces the scanlines.

fact 3: "The GPU needs to maintain a certain pixel clock in order to support the required bandwidth of a particular refresh rate"

fact 4: GPU tries to idle at 135Mhz for Desktop at 144Hz (for 2560x1400) but this refresh needs high pixel clocks. But pixel clock and Gpu clock are linked in the case of monitor with G-sync module. So GPU clock has to ramp up to 800+Mhz to support pixel clock and so sucks more power even when sitting at the Desktop. This is the "bug" --> Pixel and GPU clocks are linked.

This fact 4 applies to monitors with G-sync only going by that article. I don't know why. "Guess what? You were right! That new monitor (or you) exposed a bug in the way our GPU was managing clocks for GSYNC and very high refresh rates." says Nvidia

If you work backwards on the assumption that scanlines are related to pixel clocks somehow: Gsync on --> variations in fps --> variations in refresh --> a given refresh requires a given pixel clock (fact3) but gpu clock is doing its own fluctuations based on load --> we see artifacts like scanlines. And since Gpu clock variation patterns differ from game to game, maybe that is why we don't see them in some games but see them in others. Maybe that is also why we don't see them at 100fps/hz (fact 2).

One way to test this out would be force KBoost On or flash the GPU to a custom bios that can keep the gpu clocks constantly high without the GPUboost stuff. And see if scanlines go away. I think precision X16 or AB allows you to increase pixel clock independently of the gpu clock or something like that. I read that on a post by someone who was trying to hit 100Hz on his X34 that would not go above 95Hz.

ALL speculation folks. Don't take my word for it. It's just a hypothesis. Maybe someone can test my hypotheis with Kboost or custom bios here. But don't get too hopeful either. (okay, maybe a little if the testing works)

EDIT: if you haven't played with custom bios yet be careful to do your research before proceeding. Do not do it lightly
Edited by Mountainlifter - 11/7/15 at 2:07am
post #5199 of 6126
Quote:
Originally Posted by Mountainlifter View Post

I can offer some speculation.

fact 1: We do not know the cause of the scan lines other than that it appears when G-sync is turned on.
(Some folks originally reported that OC also needs to be ON on the monitor OSD but I think this has been disproved.)

Nope, this is still correct. No scanlines if G-Sync is on and OC is off. Scanlines appear if G-Sync and OC are on even if screen is at 60Hz though.
post #5200 of 6126
Quote:
Originally Posted by drfish View Post

Nope, this is still correct. No scanlines if G-Sync is on and OC is off. Scanlines appear if G-Sync and OC are on even if screen is at 60Hz though.
Ah well. That breaks my idea.

Still might be worth trying a kboost run on a game where you could detect scan lines easily. If only for the sake of trying random things
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › [TFTCentral] Acer Predator XR341CK 34" Curved Gaming Screen with G-sync