Post:

Hey everyone,

I’m having a really strange issue after updating my BIOS to PQCN27WW on a Lenovo LOQ (RTX 4060, Ryzen 7 7435HS).

When the laptop is plugged in everything is completely normal, but the moment I unplug the charger, I start getting a weird visual issue while my refreash rate stays 144hz ,OEM drivers or the other way ..no change at all

• Mouse movement feels “ghosted” (like delayed frames / trails)
• UI animations look slightly smeared or duplicated
• Window dragging feels visually unstable
• BUT performance is NOT actually lower ,well of course you can't play games running on battery

What I already tried:

• Rolled back BIOS
• Reinstalled GPU drivers (clean install via DDU)
• Windows power plans
• Disabled/changed hardware acceleration
• Checked Lenovo Vantage performance modes

Nothing fixes it permanently. It ONLY happens when unplugged after this BIOS update.