NVIDIA G-Sync Pulsar monitor - Acer Predator XB273U F5

[supernovae]

Update regarding this issue:

I'm sad to report that my Acer Predator XB273U F5 is showing severe light leakage along both the left and right sides.

Trigger Event: Switched from an HDR game back to the Windows 11 SDR desktop.

Monitor Behavior: The display automatically rebooted during the HDR-to-SDR mode switch.

Current State: Once the image returned, persistent bright light leaks appeared on both lateral edges. These light leaks have remained "stuck" ever since, regardless of input or desktop/monitor settings.

I even tried rolling back the firmware to see if that would trigger some kind of "hard reset," but unfortunately, nothing worked.

As mentioned here:

Update: After leaving the monitor completely unplugged from power for 4 days, the edge light leaks have surprisingly reduced.

​Left side: The light leak has almost completely disappeared.

​Right side: Significantly reduced and shifted in color tint.

Given the unexpected improvement, I successfully updated the firmware to 1.1.10.

I'll keep using it normally to see if the remaining glow diffuses further over time. But otherwise the monitor seems fine, GSYNC PULSAR still works at 360hz.

After using the monitor normally for a few days, the remaining light leaks seem to have settled.

Here is how it looks at max brightness in SDR mode with red, green, and blue backgrounds.

The leaks are always visible, even at minimum brightness, but they are most noticeable at max brightness on black, white, and grey backgrounds.

This is my final update. Acer Argentina won't honor the warranty because the unit was imported from the US, and Acer US won't honor it because I lack a physical US address.

After 20 years of buying Acer monitors, this is the first time I've run into an issue—and it will definitely be the last. I can't trust a company that refuses to stand behind its products and loyal customers.

Disgraceful. I will never touch any of Acer's products. Fucking garbage company.