: Aspire A515-57-5368 – USB-C Charging Only Works if Connected Before Boot

kiranbhosale2
kiranbhosale2 Member Posts: 2 New User
edited 7:12AM in Aspire Laptops

Hi Acer Community,

I’m using an Aspire A515-57-5368 (BIOS v1.30) and facing a USB-C and Thunderbolt-related issue:

❌ Problem:

  • USB-C charging and display output only work if connected before power-on
  • If I hotplug my USB-C monitor (LG 27U850N):
    • Charging fails
    • Display doesn’t work
    • Billboard Device appears in Device Manager (meaning PD/Alt Mode failed)
    • Thunderbolt controller (9A1B) is not detected in Device Manager
  • Drivers are all updated, including Intel Thunderbolt (v1.41.1340.0), but it refuses to install ("driver not needed")

✅ Observations:

  • charnges fine i USB-C is connected before boot. but no display
  • HWiNFO confirms:
    • Thunderbolt PCIe controller is present (8086:466E)
    • Hot-plug is supported by hardware
  • Same issue under Windows 11 23H2 and Ubuntu 22.04
  • Charging sometimes resumes if reloaded in Linux (modprobe typec_ucsi), but not in Windows

🧠 Conclusion:

Seems like a firmware/EC issue — PD/DisplayPort Alt Mode negotiation only occurs at boot.
Hotplug doesn't trigger Thunderbolt or PD retry.

❓ Ask:

  • Can Acer fix this via EC firmware or BIOS update?
  • Is there a way to force the Thunderbolt controller to stay initialized?
  • Any hidden BIOS setting to disable Thunderbolt Security or enable PD retry?

This is my primary consultation laptop and I rely on USB-C display + charging daily.

I also have attached output log file of HwInfo tool please check !!!

Thanks in advance!
— Kiran

Answers