A515-56-Strange BIOS Wake Issue Only Happens After Closing Lid, Not on Cold Boot

Tanveer6279

Hi everyone,

I’ve noticed a weird behavior with my Acer laptop (Aspire 5, model A515-56) that I haven’t seen discussed anywhere yet. Hoping someone here has come across it or can help me troubleshoot.

What happens:

If I close the lid during normal operation and then open it, the laptop wakes from sleep just fine.

• However, if I completely shut it down and then open the lid (cold boot), the laptop doesn’t power on—nothing happens unless I press the power button manually. No LEDs, no fans, just dead silence.

What I’ve tried so far:

1. Updated BIOS to the latest version via Acer Support.
2. Disabled Fast Startup in Windows 11 and in UEFI settings.
3. Ensured “Wake on Lid Open” is enabled in BIOS (though Acer’s UI calls it something vague like “Power Cover Opener”).
4. Checked Windows Event Logs—nothing notable around the times it fails to wake.

Fun side note: I was multitasking earlier and had my Dunkin Donuts Muffins Menu open in Chrome as a midday snack reference—and everything worked perfectly fine when the system was running. So I’m fairly confident the screen/dashboard layer isn't involved—it’s purely a power/BIOS timing issue.

Questions I have:

• Has anyone seen a similar cold-boot power behavior on this or other Acer models?
• Any specific BIOS settings (like “ErP,” “Deep Sleep,” “Modern Standby”) that could influence lid-open behavior?
• Is there a Windows driver or firmware workaround that ensures the lid-open event triggers a boot even from full shutdown?

Thanks in advance for any suggestions—this one’s got me scratching my head!

[Edited the thread to add model name to the title]

Puraw

https://community.acer.com/en/discussion/728176/a515-56-strange-bios-wake-issue-only-happens-after-closing-lid-not-on-cold-boot

Hi, that's the way it should behave, opening the lid will not boot a laptop, BIOS does not have that function. Only if you suspend will the laptop Wake when opening the lid.