Author Archive: Mark Rejhon
Using the TFTCentral PWM test method, the ASUS VG248QE has become PWM-free through the G-SYNC upgrade. (PWM is pulse-width modulation, is a method of brightness adjustment). This camera-wave photo on VG248QE GSYNC shows that this monitor is now PWM-free. G-SYNC monitors...
Read more
Personal “Theater Goggles Display” Supports 120Hz
Not quite Oculus or VR, but interesting: The Kickstarter for the Glyph visor personal theater headset supports 120Hz. Essentially a headphones with a flip-down 3D-compatible video visor, it can connect to any video source, including laptops. Although its input lag is...
Read more
DisplayPort 1.2a Specification Change Request for Industry Standard Variable Refresh Rate
Hot on the heels of NVIDIA G-SYNC, AMD demonstrated FreeSync, something more easily done with laptop controllers (which can dynamically change refresh rate, but for power saving purposes). To bring FreeSync to desktop monitors, AMD applied for a DisplayPort 1.2a...
Read more
Oculus VR prototype OLED uses strobing techniques to reduce blur
LinusTechTips has posted a video that confirms that the Oculus VR Crystal Cove prototype uses a strobed OLED to achieve low persistence. Blur Busters is mentioned by LinusTechTips at 4:30 in the video, pointing to our popular article, “Why Do...
Read more
LightBoost Works Under Mac OS X
The use of Boot Camp and SwitchResX makes LightBoost possible under Mac OS X, running an AMD or NVIDIA GPU (non-Optimus, without an Intel GPU alongside NVIDIA GPU). From this, it is easy to enable LightBoost on a 120Hz monitor...
Read more
Overlord Computer now has G-SYNC Monitors in Stock
After being out of stock since Christmas, Overlord Computer now has preassembled upgraded ASUS VG248QE G-SYNC monitors in stock! These are monitors that they have modified to install G-SYNC upgrades in them. If you’ve been waiting, but don’t want to...
Read more
Successful 60Hz -> 180Hz overclock of stock laptop LCD
In the Display Overclocking subforum of Blur Busters Forums, a reader successfully overclocked a laptop LCD to 180Hz refresh rate with no frame skipping. This is a stock HP Pavillion laptop model, using its internal LCD, with no hardware...
Read more
Measuring Input Lag of G-SYNC! – Preview Part #2
In G-SYNC Preview #2, we are the world’s first to measure the input lag of G-SYNC using an innovative testing technique. We found what we expected, plus we found a few unexpected surprises, with a good, happy ending! Go check...
Read more
Preview of NVIDIA G-SYNC, Part #2 (Input Lag)
— Written by Mark Rejhon If you have not seen it yet, see G-SYNC Preview, Part #1Â first! Next, as I continue to test G-SYNC I was faced with the question: What can we test that no other site has...
Read more
G-SYNC DIY Kits Now Available!
G-SYNC DIY kits are now available at the NVIDIA Store for the ASUS VG248QE monitor! They are $199. Our G-SYNC preview Part #2 is now near complete – we are publishing by...
Read more
DisplayPort 1.3 includes support for variable refresh rate
During discussions by pcper about AMD’s FreeSync, apparently the upcoming DisplayPort 1.3 spec includes provisions for variable refresh rate. Originally included for the purpose of power management (lower Hz uses less power), this is also usable for tearing/stutter-smoothing in the same...
Read more
OLED in latest Oculus Rift prototype is low-persistence
At CES 2014, engadget has tried out the latest Oculus Rift prototype, which uses a low-persistence OLED, likely strobed. It reportedly kills motion blur, one of the biggest problems with VR goggles. Turning your head left/right creates panning motion, which is blurry...
Read more