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The Asus gaming laptop ACPI firmware bug (github.com)

490 points by signa11 · 313 days ago · 217 comments on HN

Article summary

A technical investigation revealed a firmware bug in Asus gaming laptops that causes periodic ACPI/DPC stalls, leading to system-wide latency issues and stuttering. The issue is caused by a flawed ACPI code provided by the laptop's firmware, which can be fixed with a UEFI update. The bug affects Asus laptops since 2021 and can be identified using tools like LatencyMon and ETW tracing. The issue has been fixed by an updated ASUS UEFI that rewrites the ACPI ECLV routine.

Main themes

  • ACPI firmware bug
  • Laptop performance issues
  • Firmware updates
  • System latency
  • Gaming laptop problems
  • UEFI updates

What commenters say

  • The article's findings are likely accurate, but the writing style is overly dramatic and may have been generated by AI.
  • Laptop manufacturers often release devices with poor firmware support, leading to various issues and frustrations for users.
  • Some users have had positive experiences with their laptops, including those from Asus, and have not encountered significant problems.
  • Apple devices are not immune to similar issues, and their high cost does not guarantee flawless performance or support.
  • The ability to properly suspend and wake laptops without issues is a rare feature, even among high-end devices.
  • Users have reported various workarounds and fixes for laptop issues, including disabling sleep mode or using third-party plugins.
  • The Steam Deck is an exception to the common laptop issues, with extensive testing and debugging contributing to its reliability.
  • Laptop manufacturers often prioritize cost over quality, leading to devices with significant flaws and limited support.