NVIDIA G-SYNC Pulsar firmware 1.1.8 cuts 240Hz input lag

NVIDIA has released firmware version 1.1.8 for its G-SYNC Pulsar monitors, delivering immediate performance gains for owners of specific high-refresh-rate displays. The firmware includes a workaround for a problem where G-SYNC and Pulsar features become unavailable after the monitor wakes from sleep, though NVIDIA notes that a driver-side fix is still planned for some cases. Competitive gamers and display enthusiasts using supported models can now enjoy reduced input lag at 240Hz, making the gaming experience feel noticeably snappier without purchasing new equipment.

Firmware update fixes sleep mode bug and improves motion clarity

The firmware update targets four specific QHD 360Hz monitors that utilize the G-SYNC Pulsar technology. The compatible devices include the Acer Predator XB273U F5, the AOC AGON PRO AG276QSG2, the ASUS ROG STRIX Pulsar XG27AQNGV, and the MSI MPG 272QRF X36. Owners of these specific panels can install the update to access the new performance features and bug fixes outlined in the release notes.

• Firmware Version: 1.1.8
• Compatible Monitors: Acer Predator XB273U F5, AOC AGON PRO AG276QSG2, ASUS ROG STRIX Pulsar XG27AQNGV, MSI MPG 272QRF X36
• Input Lag Improvement: Reduced for 240Hz Pulsar and ULMB2 modes
• 120Hz ULMB2 Change: Switched to Global Flash instead of Rolling Scan
• New Feature: ULMB2 Pulse Width slider for MSI and AOC models

A key technical improvement in this release is the reduction of input lag for both 240Hz Pulsar and ULMB2 modes. NVIDIA also enhanced motion clarity at 120Hz by switching the ULMB2 implementation from Rolling Scan to Global Flash. This change addresses previous quality concerns and provides a cleaner image during motion at that specific refresh rate.

The update introduces a new ULMB2 Pulse Width slider, but this feature is available only for MSI and AOC Pulsar models. NVIDIA also included a workaround for the sleep-mode issue where G-SYNC and Pulsar features disappear after the monitor sleeps, though the company notes this may not fix all cases and a driver-side fix is still planned. The release also contains miscellaneous bug fixes and supports rollback to earlier firmware versions if needed.

NVIDIA provided the following details regarding the changes in firmware 1.1.8: "G-Sync Pulsar FW 1.1.8. ULMB2 Pulse Width slider for MSI and AOC Pulsar models. workaround for issue where G-SYNC (and hence Pulsar) are no longer available after monitor sleep (apparently not fixed for all cases, driver side fix TBD). reduced input lag for 240 Hz Pulsar/ULMB2. improved 120 Hz ULMB2 quality (Global Flash instead of Rolling Scan). misc bug fixes." This statement confirms the specific technical adjustments and the ongoing nature of the sleep-mode resolution.