Today, I installed a ubuntu system with my ThinkPad E430, and found that the heat generated during normal use is much greater than that under win7. After exploration, I found it was related to the built-in dual-graphics card of the fuselage, the reason is that the dedicated host does not enable the driver, but it will remain in the running status. The heat is mainly caused by the fever of the dedicated host. Because the laptop's built-in core graphics card in ubuntu is enough to support the use of the fuselage, therefore, you can find the following method to disable exclusive display:
My laptop is N cards, so I learned from the Internet that a third-party graphics card switching artifact, called Bumblebee (Bumblebee), only supports N cards.
Step 1: Install Bumblebee)
Sudo apt-get update
Sudo apt-get install bumblebee-nvidia
Sudo reboot
Step 2: view the working status of the video card
00:02. 0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
. 0 VGA compatible controller: NVIDIA Corporation gfw.m [GeForce GT 630 M] (rev ff)