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LightBoost, G-SYNC, Turbo240: 120Hz Strobe Backlight LCDs / No Motion Blur! - Page 69

post #681 of 2929
Quote:
Originally Posted by Falkentyne View Post

Lightboost has nothing to do with the video card's bandwidth or fill rate. That's why you can 'activate' it by initializing the timings, and then plug the monitor from an Nvidia video card to an Ati video card. It SHOULD be possible, since it's NOT videocard dependent, to send it a custom DDC/CI signal to trick it into activating lightboost (after a hard power off--plug, not power button) without an Nvidia card. Thus your FPS isn't affected at all.

The "problem" with lightboost is you want FPS to match refresh rate as much as possible. And it doesn't matter whether vsync is on (with triplebuffering) or off...the image will look VERY stuttery if your FPS drops more than 5 fps under the refresh rate of 120. And if it it drops by half often, you are far better off using 144 hz mode without lightboost. CRT's can handle that drop in framerate better than lightboost LCD's. The LCD "double image" effect of having 60 FPS@120 hz refresh rate with lightboost enabled is far worse than a CRT at 60fps @ 120 hz.

So depending on the game you're playing, you need to test and see if you can maintain an average of 120 fps and have it drop no lower than 100. Otherwise you're better off at 144 hz. So don't bother doing this in Crysis 3 or Battlefield 3. BF3's framerate can drop into the 70's regardless of how many video cards you are using, unless you're using a 6 core CPU or have a VERY high overclock.

That makes no sense, are you sure they don't look the same?
post #682 of 2929
100% positive. Been using CRT's every day until the last 2 weeks when i got my Asus VG248 and been using LB for a week. The image effect of having the FPS go a lot under refresh rate (with triple buffering if vsync is on of course) looks worse on the LB enabled monitor than on the CRT. BF3 at around 70 FPS on the Dell CRT I got rid of looked less double imagey (AND less mouse lag) than on the lightboost monitor.

But at 120 fps, both look the same.
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post #683 of 2929
Thread Starter 
Quote:
Originally Posted by Falkentyne View Post

100% positive. Been using CRT's every day until the last 2 weeks when i got my Asus VG248 and been using LB for a week. The image effect of having the FPS go a lot under refresh rate (with triple buffering if vsync is on of course) looks worse on the LB enabled monitor than on the CRT.
Falkentyne, make sure to compare apples to apples. thumb.gif
Compare 120 Hz LightBoost to 120 Hz CRT
Compare 100 Hz LightBoost to 100 Hz CRT
We should not compare 85 Hz CRT to 120 Hz LightBoost.

Also, set LightBoost to roughly a similar length as CRT phosphor decay; which only occurs at LightBoost=50% or less. It is possible the correct non-red-herring answer is "LightBoost can't run at 85 Hz, to gain the same fluidity as an 85 Hz CRT". That may be the problem instead.
post #684 of 2929
Does it work with Passive 3D Monitors?
post #685 of 2929
Thread Starter 
Quote:
Originally Posted by John117 View Post

Does it work with Passive 3D Monitors?
No. The passive 3D monitors don't have a stroboscopic backlight.
post #686 of 2929
When I go to install the INF override file it says "The INF file you selected does not support this method of installation"

Can anyone help with this?
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post #687 of 2929
LOL.....common mistake.
Go to display settings, advanced, monitor, then choose update driver. then go to "i wlil choose from a list of drivers myself", choose "have disk" and select the FOLDER with the INF in it.
That's all.

You will probably need to disable UAC or put windows in test mode.
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post #688 of 2929
Quote:
Originally Posted by Falkentyne View Post

LOL.....common mistake.
Go to display settings, advanced, monitor, then choose update driver. then go to "i wlil choose from a list of drivers myself", choose "have disk" and select the FOLDER with the INF in it.
That's all.

You will probably need to disable UAC or put windows in test mode.

Was this directed at me?
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post #689 of 2929
Hey mdrejhon I have a question about input lag that I'm wondering if you might have an answer to. For a game like quakelive where the fps cap is 125, is it better to cap refresh rate at 120hz or 125hz? Or just leave it at 144hz even though you only are getting 125 fps?
post #690 of 2929
I got the VG248QE, but I haven't had any luck enabling LightBoost with an AMD/ATI card. It doesn't seem to be a simple DDC command. I will work with Mark to try to figure this out.

Edit: LightBoost on AMD/ATI and NVIDIA is now possible with Strobelight



For NVIDIA users, LightBoost can be enabled entirely by using CRU without installing inf or reg files.

http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

  1. The drop-down list should have an entry for each monitor. If there are more entries and you're not sure which ones are active, run reset-all.exe and reboot. That should leave you with an entry for each connected monitor.
  2. If you don't have a 3D emitter, use the "Edit..." button at the very top to set the product ID to ACI27F8 for each monitor. This will make the driver think you have a VG278H with a built-in emitter so you can enable 3D mode. The model name doesn't matter and can be set to whatever you want.
  3. Use the "Import..." button at the bottom to import this file: lightboost.bin
    I've included the 120/110/100 Hz LightBoost resolutions. You can remove the ones you don't need. If you have multiple monitors, use the copy and paste buttons at the top to copy the resolutions to the other monitor entries.
  4. Click OK to save the changes, then reboot.
  5. In the NVIDIA control panel, open the "Set up stereoscopic 3D" page, then click the "Run Setup Wizard" button. If the button isn't there, uncheck "Enable stereoscopic 3D" and click the "Apply" button.
  6. In the setup wizard, click the "Next" button, then click "Next" again. At this point, it should enable LightBoost, and if you don't have an emitter, the mouse cursor will be very sluggish and jerky. If you don't need to enable 3D, you can exit here. Otherwise, continue the wizard as usual.

Now LightBoost should be enabled and stay enabled as long as the monitor isn't unplugged. If there is a power outage, you will have to run the setup wizard again.

If you update the video driver, you might have to go through the process again. I might make a program to simplify the process, but I need to figure out how to enable LightBoost directly in the monitor without having to run the setup wizard manually.
Edited by ToastyX - 6/30/13 at 2:57am
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