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LightBoost, G-SYNC, Turbo240: 120Hz Strobe Backlight LCDs / No Motion Blur! - Page 60

post #591 of 2929
Just use Chromium smooth scrolling text extension. You will notice right away when LB is on and off. wink.gif 144 Hz non-LB looks like do-do compared.
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post #592 of 2929
Quote:
Originally Posted by mdrejhon View Post

Too bad about the CRU method (was hoping that was simpler); thanks for your input.

As for not seeing a difference with LightBoost, you have confirmed it's actually on via OSD? And the picture has now dimmed slightly (compared to non-LightBoost)? It's worth reposting a good HardForum post here:
To do another test, download PixPerAn and test with LightBoost enabled versus disabled. It's virtually guaranteed to see a difference in PixPerAn, far more easily than in most video games.

Sometimes certain video games don't show the LightBoost effect very well. For example, Crysis will usually NOT show the LightBoost effect, while Team Fortress 3 will. This is because you need a minimum framerate of more than 80 frames per second, to begin seeing the LightBoost effect (complete lack of visible motion blur). Also, temporarily turn on VSYNC during testing, since the differences amplify when frame deliverytimes is in synch with the backlight strobes. Then if you prefer VSYNC OFF again, experiment with fps_max of several different values such as 125, 200, and 999 -- sometimes you get much better fluidity. LightBoost does sometimes amplify visibility of stutters and tearing effects, so you prefer framerates matching refresh rate.

Not sure why CRU didn't work for me, but did for shedokan. Could be a 7/8 thing, or drivers? I am using the latest beta drivers.

Yeah it was on. The red tint is immediately noticeable and the OSD said 3D-mode. I didn't try PixPerAn, as I thought it didn't work in Windows 8? It's running at 33FPS, will that matter?

I tried every game I have installed, turning down settings if required to hit 120FPS. LB looked the same as non LB. My eyesight is admittedly horrible, so maybe I just can't see the difference.
    
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post #593 of 2929
Thread Starter 
Quote:
Originally Posted by PiERiT View Post

Yeah it was on. The red tint is immediately noticeable and the OSD said 3D-mode. I didn't try PixPerAn, as I thought it didn't work in Windows 8? It's running at 33FPS, will that matter?
PixPerAn does not work properly in Windows 8. It should be reading "120".
Quote:
I tried every game I have installed, turning down settings if required to hit 120FPS. LB looked the same as non LB. My eyesight is admittedly horrible, so maybe I just can't see the difference.
Oh.... It may be that LightBoost might not be benefitting you (if it's properly functioning) due to eyesight issue. Do you see any difference between 60Hz versus 120Hz, at least?
post #594 of 2929
Quote:
Originally Posted by mdrejhon View Post

PixPerAn does not work properly in Windows 8. It should be reading "120".
Oh.... It may be that LightBoost might not be benefitting you (if it's properly functioning) due to eyesight issue. Do you see any difference between 60Hz versus 120Hz, at least?

Barely. frown.gif

Oh well. I still like the monitor. The backlight is (mostly) uniform, there's no dead pixels, and it doesn't buzz: all problems my old 1440p monitor had. And I'm happy to have something I can adjust with the OSD, instead of requiring an ICC, when a lot of games don't use ICC profiles.

I'm also noticing that vsync isn't necessary with 144hz. I can't stand screen tearing and have always had vsync enabled. That worked fine for the majority of games, but games like Crysis and Tomb Raider would get cut to 30FPS, and I can definitely notice the sluggishness there. Coupled with the fact that 1080p is far less demanding than 1440p, those games are actually playable now! smile.gif
Edited by PiERiT - 3/8/13 at 11:42am
    
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post #595 of 2929
Thread Starter 
Quote:
Originally Posted by PiERiT View Post

Quote:
Originally Posted by mdrejhon 
Do you see any difference between 60Hz versus 120Hz, at least?
Barely. frown.gif
It sounds like your motion sensitivity seems to end just barely past 60 Hz
(and also probably can't tell much of a motion clarity difference between LCD and CRT either)

That said, I'm glad you like the monitor for other reasons!

I am sensitive to vsync, even af fps>Hz. I can still notice tearing at 240fps and beyond!
Edited by mdrejhon - 3/8/13 at 7:16am
post #596 of 2929
Ok the 0xFA is present in the BenQ XL2411T amongst others, these are all the available commands via DDC/CI.


I cannot see the 0xFA or anything in the "Manufacturer Specific" area in MCCS so it must only be visible while using an Nvidia GPU.


If someone with an Nvidia card activated LightBoost then hotplugged to a linux machine or if lightboost is available in the Nvidia linux driver and dumped the current DDC/CI settings you could possibly compare the differences with Lightboost of and on. This is ofcourse if the setting is essentially an on-off command (Likely as hotplugging works).

Its a little more complicated than that but not much.
Edited by Razor 116 - 3/7/13 at 6:09pm
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post #597 of 2929
Thread Starter 
Quote:
Originally Posted by Razor 116 View Post

Ok the 0xFA is present in the BenQ XL2411T amongst others, these are all the available commands via DDC/CI.
Interesting; this ddccontrol output is consistent with what I saw in softMCCS for Windows. There are undocumented commands that don't show up in available commands. Try forcing the command anyway (It should be possible). I've found at least four different commands that actually adjust settings, but don't even show up in the capabilities string of softMCCS.

You've probably already noticed that one piece of the puzzle is the custom timings with a Vertical Total of 1147 (or 1149) but we've found that an additional step (perhaps via DDC) is required to unlock the LightBoost feature, because using the custom timings doesn't seem to work with cold-booted monitors (unplugged-plugged) attached to Radeon's, or even nVidia (non-stereoscopic drivers).
Edited by mdrejhon - 3/7/13 at 6:30pm
post #598 of 2929
If you really can't tell the diff between 60Hz and 120Hz then I can understand why you don't find LB useful, even if you're used to blur 120Hz is much much smoother lol

Have you changed anything in the Google Chrome Smooth Wheel Vega? in the settings?
Edited by shedokan - 3/8/13 at 2:46am
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post #599 of 2929
After a lot of reading i'm still kind of confused. If i've understood correctly, the lb hack is useful if you manage to stay around or over the 100fps mark during playing games?
post #600 of 2929
Isnt it same for 120Hz in general?
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