Any solutions or tweaks to reduce crosstalk or ghosting (vg27aq)

Ask about motion blur reduction in gaming monitors. Includes ULMB (Ultra Low Motion Blur), NVIDIA LightBoost, ASUS ELMB, BenQ/Zowie DyAc, Turbo240, ToastyX Strobelight, etc.
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Maximus_x2
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Joined: 04 May 2021, 08:49

Any solutions or tweaks to reduce crosstalk or ghosting (vg27aq)

Post by Maximus_x2 » 04 May 2021, 08:56

The monitor i have now is the vg27aq (2k 165hz). Its not living up to the reviews I've seen like here teckporns reviews. At the very most on there test they get triple strobes while I'm getting 6 to 8 on the top one and 4 to 5 on the middle one. Its really noticeable in games and I can't live without any motion blure reduction as I get dizzy, sick and have headaches with severe motion blure. So I'm looking to see if there are solutions or tweaks I can apply to my monitor.

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Re: Any solutions or tweaks to reduce crosstalk or ghosting (vg27aq)

Post by Chief Blur Buster » 05 May 2021, 14:27

Maximus_x2 wrote:
04 May 2021, 08:56
The monitor i have now is the vg27aq (2k 165hz). Its not living up to the reviews I've seen like here teckporns reviews. At the very most on there test they get triple strobes while I'm getting 6 to 8 on the top one and 4 to 5 on the middle one. Its really noticeable in games and I can't live without any motion blure reduction as I get dizzy, sick and have headaches with severe motion blure. So I'm looking to see if there are solutions or tweaks I can apply to my monitor.
This is caused by strobe crosstalk (LCD GtG too slow to complete between strobes), not multi-strobing (intentionally flashing a backlight multiple times in one refresh cycle), even though the artifacts are nearly identical. It's very important to understand the cause of the multiple images.

Motion sickness (nausea) can be caused by the artifacts themselves (duplicate images), sometimes moreso than the flicker.

To reduce strobe crosstalk:
  1. Use framerate=Hz where possible
    See Duplicate Image Chart, they're related to the CRT/plasma 30fps at 60Hz double image effect, but can occur at any refresh rate. Reduce Hz and increase framerate until they meet. If you prefer VSYNC OFF, make sure frame rate is far beyond refresh rate.
  2. Switch to TN or Fast IPS
    (Instead of VA panels. Most VA panels are too slow to strobe crosstalk-free at high Hz.)
  3. Warm up first. More crosstalk at cold temperatures
    Warm up your LCD panel for at least 30 to 120 minutes, depending on how cold your room was when you powered up your monitor. If it's winter, power up the screen for longer
  4. Use refresh rate headroom.
    Strobing at max Hz has the worst crosstalk. For TN and Fast IPS, try 120Hz or 144Hz instead of 165Hz. For VA and older slow IPS, try 75 or 85 Hz instead of 165 Hz, although flicker may start to become the predominant nausea factor. If you want to strobe at 165 Hz, then get a 240 Hz panel to have low crosstalk at 165 Hz. See technical explanation.
  5. Use large vertical totals
    This affects some models/panels more than others, but first create some refresh rate headroom! See technical explanation.
This is work we're working to solve. You might want to consider an upcoming Blur Busters Approved 2.0 monitor.
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