HP laptop screen flickers only when it's unplugged

Question

Fine on the charger, but on battery the screen flickers and dims in waves. Graphics driver updated. Feels like a power saving setting but I can't find which one.

kritikap · Answer

That's almost always a battery-saving feature messing with the brightness. Two to turn off: Settings > System > Display > Brightness, untick the option to change brightness based on content. If it has Intel graphics, open Intel Graphics Command Center > System > Power and turn off Panel Self-Refresh and Display Power Saving Technology. Those two only kick in on battery, which matches what you're seeing.

HP laptop screen flickers only when it's unplugged

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