No Visible Double Images with Strobing!
Hello! New HOWTO for ViewSonic XG2431 users.
Most of you already know about www.blurbusters.com/xg2431
However, there's a big update that improves strobe quality even more!
(Not applicable to any other model, not compatible with ViewSonic XG270).
These modes are even superior to previous TN panels (e.g. XL2411P), and the XG2431 supports single-strobe 60Hz.
New Crosstalk-Free DIY QFT Modes For Emulator Users / 60fps Users / Low-Framerates
jbltecnicspro from HardForum provided some excellent crosstalk-free QFT 60Hz and 85Hz modes, thanks to the new ToastyX Vertical Total Calculator in the latest version. First, upgrade your ToastX CRU to at least verison 1.5.2 or later, and also download Strobe Utility from www.blurbusters.com/xg2431
Make sure to break in your panel and warm up your panel first, as cold LCDs have slower pixel response. A minor panel lottery variance may require you to re-tune overdrive gain but Vertical Total, Pulse Width and Pulse Phase is portable to all XG2431's as long as they're kept together.
Easier Introduction to Creating Low-Crosstalk QFT Modes
Quick Frame Transport (QFT) transmits refresh cycles in 1/240sec (over the HDMI/DP cable) and the LCD will scan-out the refresh cycle in 1/240sec, even though you're only using a low refresh rate. There are two benefits to QFT -- it reduces strobe crosstalk AND simultaneously it reduces the input lag of strobing for low refresh rates.
These are excellent modes for emulators and low-framerate games (e.g. Cyberpunk 2077), especially when combined with VSYNC ON + NULL, or combined with RTSS Scanline Sync -- for ultra fluid CRT-quality motion, when motion clarity is your maximum priority above all else (colors, brightness, etc).
One of Blur Busters' problems with strobe tuning is that there are over a billion adjustment combinations for tuning XG2431 (refresh rate, quick frame transport, vertical total, pulse width, pulse phase, overdrive gain), each with subtly different crosstalk.
Thus, it can be very challenging to find the perfect combinations, harder than 100-zone CRT convergence.... until now. ViewSonic nicely allowed end-user strobe tuning, which meant thousands of users could experiment with better strobe settings -- and software vendors such as ToastyX could assist.
A new version of ToastyX has a QFT calculator that makes this much easier. Here are presets that were finally recently discovered, that no manufacturer has succeeded (DIY FTW!)
Some people have been saying these custom modes are better than a CRT tube (except for contrast ratio and color gamut).
(A) Installing Software For Creating QFT Strobe Settings
- Download and install the newest version of ToastyX CRU at MonitorTests.com. You need Version 1.5.2 or later.
- Download and install ViewSonic Strobe Utility at www.blurbusters.com/xg2431
- Launch ToastyX CRU. We will modify copies of the existing 240 Hz EDID to create new QFT modes.
- Click "Detailed Resolution" and Click "Add..." button.
- Set refresh rate to 240 Hz to match screenshot.
- Select "Vertical Total Calculator".
- Choose your preferred refresh rate. You can create any refresh rate, but we'll provide easy examples here. up to the number of Detailed Resolution slots that the EDID spec (ToastyX) gives you.
- Make sure FreeSync and G-SYNC is turned off, to allow PureXP to work
- Follow "Setting Up" steps 1-6
- Then then edit the "240" to "60"
- Then restart GPU drivers by rebooting your PC or run "restart64.exe" included with ToastyX CRU.
- Then switch your XG2431 to 60Hz (via Control Panel, or via respective NVIDIA/AMD/Intel utility)
- Then launch Strobe Utility, select "Pure XP Custom" and configure these settings:
85Hz QFT Mode for XG2431 (Crosstalk-Free Low-Lag Strobing)
- Follow "Setting Up" steps 1-6 (again, if you created the 60Hz mode first)
- Then then edit the "240" to "85"
- Then restart GPU drivers by rebooting your PC or run "restart64.exe" included with ToastyX CRU.
- Then switch your XG2431 to 85Hz (via Control Panel, or via respective NVIDIA/AMD/Intel utility)
- Then launch Strobe Utility, select "Pure XP Custom" and configure these settings:
NOTE: You will have to manually change Strobe Utility settings every time you switch between strobed QFT modes such as switching between these 60Hz and 85Hz modes. Future versions of Strobe Utility is planned to memorize multiple PureXP Custom settings, to make this process easier.
Purpose Of Perfect Zero Double-Images With PureXP Custom
These instructions are for people who want to use low refresh rates on the XG2431 to more easily allow framerate=Hz strobing.
When your content is low frame rate (video playback, emulators, RTX raytraced games, etc) or if you want to completely eliminate strobe croststalk, you can get a very good CRT motion clarity feel with the ViewSonic XG2431 when all strobe crosstalk is completely eliminated.
This is not for CS:GO esports. This is for lower-framerate content where you want to lower your Hz to match refresh rate to improve motion quality:
With properly tuned QFT PureXP Custom, with properly adjusted games, combined with framerate=Hz, you concurrently get:
- Zero stutters
- Zero jitters
- Zero motion blur
- Zero crosstalk
- No double images of any kind
- Lower latency than default low Hz modes
This can produce a motion nirvana effect in some fast-motion games -- such as SEGA Sonic Hedgehog or fast-sports videos (e.g. Red Bull air races) or other fast-panning fast-scrolling content similar to www.testufo.com/map -- the immersive butter-smooth CRT effect is most amplified when all strobe crosstalk is completely eliminated.
Some people use 120Hz or 180Hz QFT as an esports compromise for RTS games (DOTA2, LOL, etc), it's lower latency than default 120Hz and 180Hz when you use RTSS Scanline Sync as the sync technology (tearingless VSYNC OFF). There will be a slight amount of crosstalk at higher refresh rates (but less crosstalk than the same refresh rate as non-QFT), that progressively gets worse the closer you get to 240, so you have to choose your sweet-spot comproimse. The zero crosstalk modes are generally from 59Hz through approximately ~100-120Hz, dependent on panel
Once enabled, you can use these QFT modes only when you switch to a lower refresh rate, and use normal 240Hz VSYNC OFF for your esports games, if you wish. Remember: Right Tool For The Right Job!
Optional Technical Reading For Fun Background Information