Turn off the independent graphics card-so that the computer installed with Ubuntu is no longer hot!

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• I. Check whether your kernel can be switched over to a dual-graphics card.
• Ii. Disable exclusive display
• Iii. Questions

The graphics card driver has always been linux hard. Once my computer is installed with a closed source driver, the GUI will go down. I have heard of another good method recently: Turn off the independent video card! If you do not play games, the Integrated Video Card is sufficient.

The code is very simple. I don't find any problems after I get rid of it and restart it. You can use it with confidence.

Everything I said is executed under ROOT permission, So switch to root.

I. Check whether your kernel can be switched over to a dual-graphics card.

Cat/sys/kernel/debug/vgaswitcheroo/switch

If the following text is displayed, it is feasible.

0: DIS: Pwr: 0000: 01: 00.01: IGD: +: Pwr: 0000: 00: 02.0

Note: IGD is an integrated video card and DIS is an independent video card.

Ii. Disable exclusive display

Echo "OFF">/sys/kernel/debug/vgaswitcheroo/switch

Then view

Cat/sys/kernel/debug/vgaswitcheroo/switch

It should have become

0: DIS: Off: 0000: 01: 00.01: IGD: +: Pwr: 0000: 00: 02.0

Congratulations!

Iii. Questions

It seems that I will go back again after restarting! So I had to write the boot script.