LG 34GN850-B 34″ Curved QHD Nano IPS 144Hz Gaming Monitor Review: Pros, Cons & Rumors Debunked

LG 34GN850-B 34 Inch 21: 9 UltraGear Curved QHD (3440 x 1440) 1ms Nano IPS Gaming Monitor with 144Hz and G-SYNC Compatibility – Black

Immerse yourself in the 34” ultrawide QHD Nano IPS display with 1ms response, 144Hz refresh, DCI-P3 98% and VESA DisplayHDR 400 for pro-level color and clarity.
Dominate fast-paced games with NVIDIA G-SYNC compatibility, Radeon FreeSync, and a curved virtually borderless panel on an adjustable tilt and height stand for seamless, lag-free action.

Overall acclaim for immersive ultrawide gameplay and vibrant Nano IPS color reproduction.
Isolated but recurring reports of dead or stuck pixels and slight backlight glow.
Some users encounter power‐brick connectivity and DisplayPort deep‐sleep issues.
No evidence of widespread safety faults or scandalous rumors; watch for warranty delays and software quirks.

Table of contents

Product Overview
LG UltraGear 34GN850-B Review: Honest Findings
Positive Feedback & Highlights
Negative Reviews & Rumor Analysis
Who Should Consider LG UltraGear 34GN850-B?
Conclusion: Final Verdict

Product Overview

Features a 34″ ultrawide QHD (3440×1440) Nano IPS panel.
Offers up to 144Hz native (160Hz OC) refresh rate with NVIDIA G-SYNC compatibility.

The LG UltraGear 34GN850-B is designed for pro-level gaming and immersive workflows. Its wide 21:9 aspect ratio delivers expansive screen real estate, while a curved panel wraps around your field of view. This monitor integrates Nano IPS technology for a 98% DCI-P3 gamut, a rapid 1 ms (GtG) response, and VESA DisplayHDR 400 support. Connectivity includes DisplayPort 1.4, HDMI 2.0, USB 3.0, and an external power brick, all housed within a three-sided virtually borderless frame and an adjustable stand.

LG UltraGear 34GN850-B Review: Honest Findings

Delivers sharp, snappy performance that matches its spec sheet.
Some users cite OS‐level HDR and sleep‐mode conflicts.

In real-world testing, the 34GN850-B consistently impresses with buttery-smooth frame rates and rich color depth. Competitive gamers note the freedom to push beyond 144 Hz into the ~160–180 Hz range via overdrive, while content creators appreciate the wide color gamut. However, advanced features like HDR can lock out certain OSD controls, and DisplayPort deep sleep may cause Windows to reshuffle your desktop on wake. Firmware updates are infrequent, so occasional quirks persist.

Positive Feedback & Highlights

Users praise the ultrawide immersion for gaming and productivity boosts.
Consistent comments about minimal backlight bleed and sleek borderless design.

Many reviewers have run this monitor nearly daily for gaming sessions and office work, often for over a year, reporting no significant downsides. They highlight the 1 ms GtG response paired with high refresh rates as a game-changer, especially in fast-paced titles like Doom Eternal and competitive FPS. The Nano IPS panel commonly garners praise for its vibrant 98% DCI-P3 coverage, yielding richer reds and deeper greens than traditional IPS. Productivity users enjoy fitting multiple windows side-by-side without the bezel gap of dual-screen setups, and many find the stand’s height and tilt adjustments intuitive and stable.

Negative Reviews & Rumor Analysis

Reports of dead or stuck pixels crop up throughout the life of the monitor.
Some experience power brick looseness and DisplayPort wake issues.

Dead or Stuck Pixels & Backlight Bleed

Several buyers found one or more stuck pixels within weeks of use.
IPS glow and slight backlight bleed are present but not pervasive.

While LG’s QC usually passes panels with up to a handful of sub-pixel anomalies, multiple owners have reported noticing a green or blue dot when the screen is dark. In most cases the defect remains small enough to ignore during gameplay, though it can be distracting in cinematic HDR black screens. The IPS glow—a soft halo in dim rooms—appears at the panel edges but seldom rises to the level of a dealbreaker. If you receive a unit with widespread bleed or clusters of stuck pixels, Amazon’s return window offers a quick remedy.

Firmware, Connectivity & Power Brick Quirks

External power brick connection can feel loose and may spark if not firmly seated.
DisplayPort deep-sleep without a disable option forces Windows to re-detect the monitor on wake.

One unusual complaint centers on the separate external PSU. A few customers observed that the brick plugs into the monitor’s DC jack without a locking latch, causing intermittent cutouts if jostled. On the data side, the 34GN850-B lacks a user toggle for DP deep sleep. When Windows sends the monitor to sleep, the system may think it’s been unplugged, rearranging your desktop icons and full-screen apps. Unlike some competing brands, LG has not added an “install-side” firmware update to grant full control over sleep states, leaving users to rely on registry hacks or disabling deep sleep globally.

Software, HDR & OS Compatibility

HDR mode locks out many brightness and color controls in the OSD.
macOS users encounter LG OnScreen Control hangs and no RGB customization.

The OSD’s HDR preset is limited: once HDR is enabled, most color-tuning settings—gamma, RGB balance, six-axis color adjustment—are greyed out. Users must navigate Windows HDR sliders and back out to the monitor menu, which can interrupt immersion. On macOS Ventura and above, the LG OnScreen Control app sometimes freezes, hogging CPU cycles and failing to detect the monitor for basic splitscreen. Additionally, the rear sphere RGB lighting is Windows-only; Mac owners simply see a glowing ring they cannot reconfigure or turn off permanently without third-party hacks.

Warranty & Support Rumors

Some buyers report slow response from LG’s warranty department.
No widespread rumors of structural safety hazards or design failures.

Unlike booming rumors of exploding batteries in other products, the 34GN850-B has no viral safety scandals. That said, a handful of customers mention spending weeks in back-and-forth troubleshooting calls before LG authorizes a return-for-repair or replacement. LG’s official support portal shows occasional delays in firmware notices, and there is no user-accessible way to view or upgrade monitor firmware from the OSD. If a panel arrives defective, most users rely on Amazon’s return policy for the fastest resolution.

Who Should Consider LG UltraGear 34GN850-B?

Hardcore gamers seeking high refresh rates and minimal motion blur.
Multitaskers wanting seamless ultrawide real estate in a virtually bezel-less design.

If you demand a competitive edge in FPS titles or crave broad peripheral immersion in simulation and racing games, the 34GN850-B is a compelling choice. Its rapid 1 ms response and G-SYNC compatibility eliminate tearing, while the Nano IPS layer delivers exceptional hues. However, professionals who need perfect out-of-the-box calibration, macOS natives sensitive to DP sleep states, or anyone requiring robust third-party warranty assistance may find competing models more tailored to those needs.

Conclusion: Final Verdict

No evidence of lurid rumors or fatal design flaws—just isolated pixel and software quirks.
Remains a top pick for ultrawide gaming and multimedia, with caveats on support and HDR controls.

The LG UltraGear 34GN850-B stands out for its stunning Nano IPS color, ultrawide immersion, and fluid high-refresh gameplay. While no monitor is perfect, the most serious complaints—dead pixels, power-brick fitment, HDR lock-outs, DP sleep—are addressable via returns or workarounds. No widespread rumors of catastrophic failure circulate. Overall, if you value speed and vivid imagery in a curved 21:9 form factor, the 34GN850-B remains a strong contender in its price tier.