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Do you need help resolving ACPI Errors ACPI\VEN_BOOT&DEV_0000 and ACPI\VEN_PRP&DEV_0001 on HP Chromebook G2? Click here for the troubleshooting steps.

‎01-09-2022 09:45 AM

HP Recommended
Product: HP Envy 13
Operating System: Microsoft Windows 10 (64-bit)

Upon power-up, when a USB-C to hdmi adapter and a USB-A hub are plugged in, the laptop turns on but only shows a blank screen and after some time the caps lock key blinks 5 long then 4 short flashes.

Looked up what this means and the error description is as follows:

"Embedded controller times out waiting for BIOS to return from system board intialisation (end of POST)"

I have tried the following:

  • Hard restart
  • Disable USB boot in BIOS
  • Update BIOS to latest version

None of these have helped, and the laptop boots just fine with a USB AMP-DAC plugged in.

Who Me Too'd this topic
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.