LED backlight issue: no backlight on battery. Backlight works on adapt
Hello, diagnosing a strange issue here. Laptop works fine plugged in. When disconnected from ac adapter the laptop works but the screen goes very dark as in the backlight just quits. System still works fine. Connect the adapter back and the backlight Comes on. Tried all windows settings but this issue happens in bios as well. The only thing I can think of is the battery is at fault as I read that in dell XPS series the backlight power is fed straight from the battery. Currently waiting for a new battery. Anyone else have similar issue?
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