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LightBoost, G-SYNC, Turbo240: 120Hz Strobe Backlight LCDs / No Motion Blur! - Page 58

post #571 of 2929
So after having fresh install of windows and monitor unplugged plugged, creating custom resolution via nvidia driver+CRU and run setup wizard should make LB stick? That means I wont be able to run any other resolution than 1080p?

Vega #instructions #omg

Should the NVIDIa 3D Vision Driver and Controller Driver be installed after LB is enabled?
Edited by shedokan - 3/7/13 at 3:31am
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post #572 of 2929
Update:

After doing fresh install of windows and reseting the monitor
Using CRU.exe for custom resolution, restart PC, LB turned ON stright without doing anything. No inf/reg files or anything.
I raise the Contrast and put LB to 10%, ran pixperan after and here:
Graphics mode: 1920x1080 @ 32 bpp
Frame rate: 120.1 Hz
Gamma factor: -

Flag test: -
Chase test: -
Readability: Tempo 30

rolleyes.gif
Edited by shedokan - 3/7/13 at 6:05am
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post #573 of 2929
Quote:
Originally Posted by shedokan View Post

Update:

After doing fresh install of windows and reseting the monitor
Using CRU.exe for custom resolution, restart PC, LB turned ON stright without doing anything. No inf/reg files or anything.
I raise the Contrast and put LB to 10%, ran pixperan after and here:
Graphics mode: 1920x1080 @ 32 bpp
Frame rate: 120.1 Hz
Gamma factor: -

Flag test: -
Chase test: -
Readability: Tempo 30

rolleyes.gif

Yes, good to go. thumb.gif

There are a few more steps for Surround setups, but that is the gist of it.
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post #574 of 2929
Thread Starter 
Quote:
Originally Posted by shedokan View Post

Update:

After doing fresh install of windows and reseting the monitor
Using CRU.exe for custom resolution, restart PC, LB turned ON stright without doing anything. No inf/reg files or anything.
I raise the Contrast and put LB to 10%, ran pixperan after and here:
Graphics mode: 1920x1080 @ 32 bpp
Frame rate: 120.1 Hz
Gamma factor: -

Flag test: -
Chase test: -
Readability: Tempo 30
:
This is great news you could activate LightBoost without .reg, without .inf, and without the 3D Vision emitter!

CRU.exe actually installs some information into the registry that has similar information to the .inf file. I'm contacting ToastyX to figure out if I could team-up with him to create a LightBoost utility (including hotkeys, easy on/off, easy uninstall, etc). I would like to have two different 120 Hz modes, one that enables LightBoost and one that does not enable LightBoost.

Within one month, I'd like to replace the LightBoost HOWTO instructions with something that does not require .reg or .inf files (Windows 8 driver override is tricky). But done with a beta instructions page first. With about 10,000 pageviews of the LightBoost HOWTO a week and about 1000 downloads of the .inf file per week (BENQ and ASUS needs to thank me for the extra sales I'm giving them... Maybe I should start putting an Amazon Affilate link -- LOL -- to break-even on the web hosting costs at least!)... I need to change my instructions _very_ carefully because I want to be absolutely certain that it works on all models of monitors. I've tried instructions that worked on a BENQ but not ASUS.

But this is promising and should significantly simplify instructions! Even if it will not work on Radeon.
We need to write beta instructions soon. Since I am away from my LightBoost monitors again for a few days (work, work), perhaps you (Vega) can email me some (including a screenshot of the custom resolution entry in CRU.exe) and I'll publish them on a "beta instructions" page for testing on several models. I'd polish/edit up the instructions, put them into a beta instructions page on Blur Busters. You would get credit, of course (and a link to your own web page/LinkedIn/whatever)

(shedokan, what monitor model do you have?)
Edited by mdrejhon - 3/7/13 at 7:52am
post #575 of 2929
Yeah I was kinda surpried LB went on, I was like how can It be so easy lol.
But why would you want to have 120Hz non LB? Ofc its nice to have an ON/OFF function but.. I tried reading pixperan with 144Hz before doing it once at 12 speed and it was so annoying biggrin.gif

I set my Monitor to 120Hz instead of 144Hz (Not sure if needed(?) cause you force 120Hz in CRU), I entered the values which Vega posted a while ago in his CRU, restarted and thats it.

You can see at the top it says VG248, no VG278 INF or any other installed.



@EDIT: Is there anyone who plan to do some input lag tests between 144Hz non LB and 120Hz LB? Not that It'll make anyone go back to non LB if numbers are lower biggrin.gif but still, interesting
Edited by shedokan - 3/7/13 at 8:11am
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post #576 of 2929
Thread Starter 
Thanks for the screenshot! If you don't mind, I'll later incorporate it into a preliminary HOWTO.
Quote:
Originally Posted by shedokan View Post

Yeah I was kinda surpried LB went on, I was like how can It be so easy lol.
But why would you want to have 120Hz non LB?
Although LightBoost provides a massive motion-quality improvement, some people still want to turn off LightBoost, while others want to keep it on.
- Color quality, uniformity, greyscale (more important at desktop than in games)
- Eye comfort from 120 Hz flicker (varies from person to person)
- Picture too dim with LightBoost (for bright rooms)

Detailed information: Color quality is usually better with the strobe backlight disabled (LightBoost turned off). Also, greyscale, too -- the gamma is automatically jacked upwards (although nVidia Control Panel can undo much of this). In addition, the contrast range is better in non-LightBoost mode. The LCD greyscale is compressed slightly during LightBoost to aid in optimizing the pixel response curves to minimize crosstalk between refreshes during the LightBoost strobes (absolute LCD grays are tweaked -- the BLB looks different on a black screen with LightBoost ON versus LightBoost OFF). There's some vertical asymmetry in how the LCD pixels are prepared before the LightBoost strobes, and that shows itself as some faint horizontal banding artifacts in certain kinds of test patterns. Also, there's some faint artifacts that sometimes show at upper-right-corner of 1ms panels (horizontal line artifact). Also, some people get eyestrain with 120 Hz after a prolonged time period, so need a rest with flicker-free operation. LCD panels are pushed to their technological limitations in order to squeeze pixel persistence into the time period between refreshes (i.e. the vertical blanking interval), to make strobe backlights possible to bypass pixel persistence. This results in some compromises to color quality, to gain the very massive, massive improvement in motion quality (for stutter-free 120fps@120Hz sources). Also, LightBoost dims the picture due to the increased black period (backlight off) between refreshes, which is a problem for bright environments such as daytime in a room with big windows.

Some people like me will keep LightBoost on 24/7, while others will only enable it during video games.
Edited by mdrejhon - 3/7/13 at 9:01am
post #577 of 2929
Thread Starter 
Without running, let me make a wild guess as to the step-by-step instructions, just by looking at your screenshot.

1. Download the ToastyX Custom Resolution Utility
2. Run CRU.exe
3. Under "Detailed Resolutions", click "Add"
4. Enter the numbers found in the screenshot. (Most important: Make sure Vertical Total is 1149)
5. Click OK, and reboot.
6. LightBoost should now be enabled automatically when you switch to 1920x1080 at 120Hz



Questions to all of you:
- Does LightBoost stay persistent at all times?
- This works even if 3D Stereoscopic checkbox is disabled?
- (Vega) What happens when you enable/disable the 3D Stereoscopic checkbox? Does it interfere with 3D Vision?
- (Vega) What additional steps are needed if you have more than one LightBoost monitor? Just create this same resolution on each monitor?
- Simplifying steps further: Can you click "Export"? So we can see if we can simplify step 4 by just having other people click "Import"? Typing numbers can be confusing.

I wonder why these steps don't run on Radeon's (at least OCBurner's setup)? I would imagine that the nVidia graphics card is signalling the monitor to "unlock" the LightBoost feature somehow. A vendor lock feature. So there might still be a monitor command required to unlock this feature.
Edited by mdrejhon - 3/7/13 at 11:42am
post #578 of 2929
Why wouldnt 1080p be persistent? It is anyhow. You can still use other resolutions in-game, monitor still in LB Mode looking at the OSD settings

I haven't even touched 3D Stereoscopic so it is disabled at all times.
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post #579 of 2929
Thread Starter 
Quote:
Originally Posted by shedokan View Post

Why wouldnt 1080p be persistent? It is anyhow. You can still use other resolutions in-game, monitor still in LB Mode looking at the OSD settings
Ooops, I meant "Does LightBoost stay persistent?". Thanks for the correction. :-)
post #580 of 2929
Quote:
Originally Posted by mdrejhon View Post

Without running, let me make a wild guess as to the step-by-step instructions, just by looking at your screenshot.

1. Download the ToastyX Custom Resolution Utility
2. Run CRU.exe
3. Under "Detailed Resolutions", click "Add"
4. Enter the numbers found in the screenshot. (Most important: Make sure Vertical Total is 1149)
5. Click OK, and reboot.
7. LightBoost should now be enabled automatically when you switch to 1920x1080 at 120Hz



Questions to all of you:
- Does LightBoost stay persistent at all times?
- This works even if 3D Stereoscopic checkbox is disabled?
- (Vega) What happens when you enable/disable the 3D Stereoscopic checkbox? Does it interfere with 3D Vision?
- (Vega) What additional steps are needed if you have more than one LightBoost monitor? Just create this same resolution on each monitor?
- Simplifying steps further: Can you click "Export"? So we can see if we can simplify step 4 by just having other people click "Import"? Typing numbers can be confusing.

I wonder why these steps don't run on Radeon's (at least OCBurner's setup)? I would imagine that the nVidia graphics card is signalling the monitor to "unlock" the LightBoost feature somehow. A vendor lock feature. So there might still be a monitor command required to unlock this feature.

I'n my screenshot above, it is important to make sure that total pixel field is the emphesis.

My Lightboost in Surround stays persistant at all times. The only way to kick the monitors out of LB mode is to physically remove the power cable. If power is removed, you repeat the process to re-enable persistant LB.
This works without any 3D drivers even installed. However, if you remove power to the monitors you will need to kick-start the monitors back into LB mode via the 3D drivers, so you might as well leave them installed. (I recommend a 3D emitter so you don't have to worry about custom monitor .inf files if your monitor doesn't have a built in emitter and the stuttering/pausing in 3D mode caused by not having an emitter.)
Enable 3D checkmark does nothing as far as LB is concerned as LB is permanently on, it just tells the game to run in 3D mode or not. I set this to off of course.
As for Surround, the KEY is to perform the CRU.exe modification on all of the monitors AFTER the three monitors are set in Surround mode. Make your CRU match the above screen shot for all of your monitors, reboot and you now have a permanent Surround Lightboost setup at the single Surround resolution. This is very important as it prevents games from using a non-LB resolution and kicking your whole setup out of LB. Once you have the numbers entered into one of the monitors in CRU.exe, click copy and paste them to the other two monitors to save time. thumb.gif
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