混合图形^{(Hybrid-Graphics)}是一个概念，涉及同一台计算机上的两个图形卡。笔记本电脑制造商已经开发出新技术，涉及在一台计算机上使用两个具有不同功能和功耗的图形卡。混合图形已被开发为支持高性能和节能用例。在这篇文章中，我们将找出原因，然后针对在支持混合图形和显示到外接显示器的系统上使用 Windows 10 时电池快速耗尽的问题提供解决方案。

使用混合^(Hybrid)显卡在Windows 10上快速消耗电池电量^(Battery)

让我们看一下您可能会遇到此问题的典型场景。

您在支持混合图形的系统上使用 Windows 10。您使用NVIDIA 图形处理器单元 (GPU)^{(NVIDIA graphics processor unit (GPU))}向外部显示器显示^{(display to an external monitor)}。

在这种情况下，您可能会继续看到电池快速耗尽^{(battery drain)}2 分钟或更长时间。

当您在支持混合图形和显示到外接显示器的系统上使用 Windows 10 时，会出现电池快速消耗的问题，因为dwm.exe（是Windows 10/8/7/Vista中的窗口管理器，它允许使用即使在视频或DirectX 应用程序^{(DirectX application)}结束并且拔下外接显示器后，硬件加速（以呈现Windows的图形用户界面）进程仍继续引用独立 GPU (dGPU) ^{(discrete GPU (dGPU))}– Windows 10继续保持为 dGPU 供电。

运行电源疑难解答

如果您遇到此问题，您可以运行 电源疑难解答并让它检查并自动检测和修复电源^(Power)问题。

Hope this helps!

PS：在写这篇文章的时候， ^(P.S:)Windows 10上这个问题目前还没有已知的解决方案。微软^(Microsoft)正在调查这个问题。

Fix Fast Battery drain on Windows 10 using Hybrid Graphics

Hybrid-Graphics is a concept involving two graphics cards on the same computer. Laptop manufacturers have developed new technologies involving two Graphic Cards with different abilities and power consumptions on a single computer. Hybrid-graphics has been developed to support both high performance and power saving use cases. In this post, we will identify the cause and then offer the solution to the issue of rapid battery drain when you use Windows 10 on a system that supports hybrid graphics and display to an external monitor.

Fast Battery drain on Windows 10 using Hybrid Graphics

Let’s take a look at a typical scenario where you can encounter this issue.

You use Windows 10 on a system that supports hybrid graphics. You use an NVIDIA graphics processor unit (GPU) to display to an external monitor.

In this scenario, you may continue to see the rapid battery drain for 2 minutes or more.

This issue of rapid battery drain when you use Windows 10 on a system that supports hybrid graphics and display to an external monitor, occurs because the dwm.exe (is the window manager in Windows 10/8/7/Vista that enables the use of hardware acceleration to render the graphical user interface of Windows) process continues to reference the discrete GPU (dGPU) even after a video or DirectX application ends and the external monitor is unplugged – Windows 10 continues to maintain power to the dGPU.

Run Power Troubleshooter

If you’re faced with this issue, you can run the Power Troubleshooter and let it check for and automatically detect and fix Power issues.

Hope this helps!

P.S: As at the time of writing this post, there is currently no known resolution for this issue on Windows 10. Microsoft is investigating the issue.

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