David ReneltandPhyxionNL a792c26891 Add intel vram sensors (#2077)
* Add Intel Arc VRAM sensors support

- Implement BDF-based device matching for Intel discrete GPUs
- Add VRAM sensors (total, used, free, load percentage)
- Use D3D device enumeration with fallback logic
- Enable Windows-specific VRAM monitoring for Intel Arc GPUs
- Fix device identification to distinguish between multiple identical GPUs

Resolves issue where both Intel Arc GPUs showed identical VRAM values.
Now each GPU displays unique, accurate memory usage statistics.

* Add defensive validation to GetBdfFromDeviceIdentifier

- Add null/empty check for deviceIdentifier parameter
- Return false explicitly when LastIndexOf('#') returns -1
- Add DEVPROPTYPE.DEVPROP_TYPE_UINT32 validation after property queries
- Use sizeof(uint) instead of hardcoded 4 for buffer sizes
- Apply PCI spec bit masks (5-bit device, 3-bit function)
- Add bus range validation (0-255)

* Revert to Windows DEVPKEY_Device_Address spec masks

Use 0xFFFF masks as per Windows documentation instead of PCI spec
bit widths. The Windows API uses full 16-bit fields for device and
function numbers.

* Update IntelDiscreteGpu.cs

* Update NativeMethods.txt

---------

Co-authored-by: PhyxionNL <7643972+PhyxionNL@users.noreply.github.com>
2025-11-28 21:54:04 +01:00
2025-09-29 18:48:00 +02:00
2024-11-24 11:52:52 +01:00
2021-01-23 12:06:06 +01:00

LibreHardwareMonitor

GitHub license Nuget Nuget (with prereleases) Nuget

Libre Hardware Monitor, a fork of Open Hardware Monitor, is free software that can monitor the temperature sensors, fan speeds, voltages, load and clock speeds of your computer.

What's included?

Name .NET Build Status
LibreHardwareMonitor
Windows Forms based application that presents all data in a graphical interface
.NET Framework 4.7.2 Build status
LibreHardwareMonitorLib
Library that allows you to use all features in your own application
.NET Framework 4.7.2
.NET 8.0, .NET 9.0, and .NET 10.0
Build status

What can it do?

You can read information from devices such as:

  • Motherboards
  • Intel and AMD processors
  • NVIDIA and AMD graphics cards
  • HDD, SSD and NVMe hard drives
  • Network cards

Where can I download it?

You can download the latest release here. You can also install it using WinGet:

winget install LibreHardwareMonitor.LibreHardwareMonitor

Nightly builds

If you have a GitHub account, you can download nightly builds here. Otherwise, you can download the latest nightly build here.

How can I help improve it?

The LibreHardwareMonitor team welcomes feedback and contributions!
You can check if it works properly on your motherboard. For many manufacturers, the way of reading data differs a bit, so if you notice any inaccuracies, please send us a pull request. If you have any suggestions or improvements, don't hesitate to create an issue.

Developer information

Integrate the library in own application

  1. Add the LibreHardwareMonitorLib NuGet package to your application.
  2. Use the sample code below.

Sample code

public class UpdateVisitor : IVisitor
{
    public void VisitComputer(IComputer computer)
    {
        computer.Traverse(this);
    }
    public void VisitHardware(IHardware hardware)
    {
        hardware.Update();
        foreach (IHardware subHardware in hardware.SubHardware) subHardware.Accept(this);
    }
    public void VisitSensor(ISensor sensor) { }
    public void VisitParameter(IParameter parameter) { }
}

public void Monitor()
{
    Computer computer = new Computer
    {
        IsCpuEnabled = true,
        IsGpuEnabled = true,
        IsMemoryEnabled = true,
        IsMotherboardEnabled = true,
        IsControllerEnabled = true,
        IsNetworkEnabled = true,
        IsStorageEnabled = true
    };

    computer.Open();
    computer.Accept(new UpdateVisitor());

    foreach (IHardware hardware in computer.Hardware)
    {
        Console.WriteLine("Hardware: {0}", hardware.Name);
        
        foreach (IHardware subhardware in hardware.SubHardware)
        {
            Console.WriteLine("\tSubhardware: {0}", subhardware.Name);
            
            foreach (ISensor sensor in subhardware.Sensors)
            {
                Console.WriteLine("\t\tSensor: {0}, value: {1}", sensor.Name, sensor.Value);
            }
        }

        foreach (ISensor sensor in hardware.Sensors)
        {
            Console.WriteLine("\tSensor: {0}, value: {1}", sensor.Name, sensor.Value);
        }
    }
    
    computer.Close();
}

Administrator rights

Some sensors require administrator privileges to access the data. Restart your IDE with admin privileges, or add an app.manifest file to your project with requestedExecutionLevel on requireAdministrator.

License

LibreHardwareMonitor is free and open source software licensed under MPL 2.0. Some parts of LibreHardwareMonitor are licensed under different terms, see THIRD-PARTY-LICENSES.

S
Description
ReLibreHardwareMonitor, home of the fork of LibreHardwareMonitor
Readme MPL-2.0
14 MiB
v0.1.0
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