acpi

  1. LatencyMon Demystified: Fix Micro-Stutters via ISRs, DPCs, and Page Faults

    For a surprising number of Windows systems, the guilty party behind intermittent stutters, dropped frames, and mysteriously sluggish behaviour isn’t a CPU pegged at 100% or a full SSD — it’s the tiny, sub-millisecond interruptions inside the kernel that LatencyMon can expose and quantify in...
  2. Microsoft's USB-C Port Fix: HLK Validation, ACPI Accuracy, and Windows Alerts

    Microsoft’s latest push to force better USB-C behavior on Windows 11 PCs is a welcome — and long overdue — attempt to end a years‑long era of port confusion, flaky charging, and bewildering compatibility problems that have left users juggling cables and vendor support forums. The company is...
  3. Windows 11 24H2 USB-C Diagnostics: OEM ACPI/UCSI/UcmCx Alignment Needed

    Microsoft’s recent push to make USB Type‑C behave like a predictable, debuggable platform capability instead of a marketing checkbox is both overdue and technically precise: Windows 11 (notably the 24H2 branch) now exposes richer USB‑C diagnostics and toast notifications, but that capability...
  4. Windows USB-C Notifications: OEM ACPI/UCSI, UcmCx, and WHCP

    Microsoft has quietly pushed PC makers to stop treating USB Type‑C as merely a cosmetic port and to implement the platform-level hooks Windows needs to deliver consistent, actionable notifications when Type‑C connections misbehave — a move that aims to end years of “plug‑and‑pray” frustration...
  5. Microsoft Pushes OEMs to Deliver Reliable USB‑C Notifications in Windows 11

    Microsoft is pushing PC makers to stop treating USB Type-C as a cosmetic port and to implement the platform-level hooks Windows 11 needs to deliver consistent, useful notifications when Type‑C connections behave unexpectedly. The company’s guidance — now baked into Windows’ hardware requirements...
  6. Still no Touchscreen

    I went through all the Troubleshooting/Mastering Touchscreen articles/posts and nothing worked. For some reason it's not finding the driver to continue to work. Touchscreen still not listed in HID but it is present in the System Data. Device settings for ACPI\ELAN2513\0 were migrated from...
  7. Windows 10 Driver power state failure pci.sys

    Recently i have been facing BSOD with driver power state failure. i have opened the dump file and debugged it PLEASE HELP ********** DRIVER_POWER_STATE_FAILURE (9f) A driver has failed to complete a power IRP within a specific time. Arguments: Arg1: 0000000000000003, A device object has been...
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    Windows 10 Windows not showing correct battery charge

    When the charger is plugged in the battery charge display is stuck at 8% for several minutes. Other times when the battery is fully charged and the charger is unplugged the battery display remains stuck at 100% for several minutes. The laptop also shuts down due to a low battery. Before it shuts...
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    Windows 10 network settings constantly change

    I accidently deleted my ACPI Interface driver and now my network settings continually change by themselves requiring me to reset them
  10. Windows 10 cpu usage 20% - system interrupt

    Hi, the pc: QC5000-ITXPH I've got a severe issue here. When I open one of these 2 surveillance softwares: -axis-camera-station -axis-companion , after a while the cpu starts load at 20% without reason. the process is "System Interrupts" and I can't determine what is causing this. I've tried...
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    Windows 7 Differences AHCI vs ACPI?

    When reading some config recommendations always two different hardware features are mentioned: AHCI and ACPI What is the difference? Both seem to be power-saving-related. Is one for hard disks and the other for CPU only? Is one in BIOS-only configurable the other from WinOS configurable? Peter
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    Windows 7 acpi even id 15

    ACPI Event ID 15 : The embedded controller returned data , selvom under the Non was requested data . BIOS try possibly two get access two The Integrated Controller Without in sync with the operating system. These data bliver ignored. No Further handling IS required. You shouldnt dog contact the...
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    Windows 7 Fans keep running after shutdown

    Win 7 Home Premium 64 bit, 6.1.7601 SP 1 Build 7601, Gigabyte GA-X58A-UD3R, i7-960, 12gb mem, GTX-560, NZXT Gamma case I recently replaced my motherboard and psu in a system recovery. Since then all my fans keep running after shutdown, the front case light is on, usb hub light is on, and case...
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    Windows 8 Windows 8.1 Ignores power settings and hibernates after 5 minutes

    My PC ignores all power settings and hibernates after approx 5 minutes of user inactivity. It is a Dell Vostro 200, which I had been running successfully on Windows 8 Pro. The problem appears to have been the result of upgrading to Windows 8.1. Regardless of the power scheme settings, the PC...
  15. Windows 8 Resolving WUDFRd Driver Errors on Lenovo IdeaPad Flex 14

    I keep getting these 2 error msgs in Event Viewer on my Lenovo IdeaPad Flex 14...anyone know what they are and how to resolve them? Thanks! The driver \Driver\WudfRd failed to load for the device ACPI\ACPI0008\2&daba3ff&2. ======================== The driver \Driver\WUDFRd failed to load for the...
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    Windows 7 Consider replacing your battery Problem

    :confused: I am sorry if this was posted somewhere,but I am not in the mood,because of this problem on my laptop.This is like a crash and a bit of a bug,and it annoys me.The laptop I have is Satellite L755 and owned it for 10 months which is near a year.As of right now, my laptop's battery...
  17. Windows 8 Speedfan 4.49 Now Fully Supports Windows 8 with Enhanced ACPI Features

    Speedfan has now become fully compatible with windows 8 with the release of version 4.49: SpeedFan - Access temperature sensor in your computer
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    Windows 8 Missing Multimedia Controller drivers when updating Vista x86 to 8 Pro N x86

    Why does every new O/S decide to remove undesired drivers and software? Same thing happened when moving from XP to Vista, and once you had Vista you sure had to get out of it! Win 8 Pro N has physically deleted 3 multimedia controller drivers; 1. Type: Other unit, Mfg: Unknown, Location: PCI-bus...
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    Windows 7 Error While Installing New Programs

    I am running Win 7 Pro on a ACPI x64-based PC. I have been unable to install a number of applications - most recently Evernote. I get an error while running the installation programs: "An error occurred while attempting to create the directory: C:ProgramData\Microsoft\Windows\Start Menu"...
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    Windows 7 bsod bccode 7f

    Link RemovedLink Removeddumps memory at random moments pls help :frown:... im using a amd phenom II x4 940 socket am2+ (940) asus mother board id\m3n72-d bios is m3n72-d acpi bios revision 0603 memory is ddr2 dual and ganged runnin at 400 mhz pls help Please provide this information: Link...