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This article is about the Ubuntu independent graphics card is not easy to use how to close the independent graphics card, the editor feels very practical, so share with you to learn, I hope you can get something after reading this article, say no more, follow the editor to have a look.

Now most notebooks are dual graphics cards, independent graphics card and integrated graphics card switch to use, but in the Ubuntu system, independent graphics card is not easy to use, some people want to turn it off, so how to close it?

First uninstall the previous driver, and then enable the set display, turn off the unique display, and record the excerpt here:

Notebooks use Ubuntu to dissipate a lot of heat, so they want to disable the single display, the machine is a dual graphics card, the sole display is ATI5650, in BIOS, there are only two options, either use only solo display, or use video card switchable mode. It seems that Ubuntu 10.10 already supports video card switchable mode. Select the switchable mode. Google, roughly to find this file / sys/kernel/debug/vgaswitcheroo/switch. If you don't have this file, it's because you installed the ATI driver, uninstalled it, and then restarted it. Here's how to uninstall the ATI driver:

Sudo sh / usr/share/ati/fglrx-uninstall.sh

If there is no such file, execute:

Sudo apt-get remove-purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev* xorg-driver-fglrx

If the file / sys/kernel/debug/vgaswitcheroo/switch should exist, execute the command:

Echo IGD "/ sys/kernel/debug/vgaswitcheroo/switch

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

Set display is enabled and unique display is turned off. Both are on by default. If you are interested, please take a look at this file / sys/kernel/debug/vgaswitcheroo/switch.

To execute as soon as the system starts, add these two sentences to / etc/rc.d/rc.local and restart.

Sudo cat / sys/kernel/debug/vgaswitcheroo/switch

, if displayed

0:IGD:+:Pwr:0000:00:02.0

1:DIS:: Off:0000:01:00.0

It proves that Duxian closed successfully.

Write the command to disable the unique display and enable the set display in / etc/rc.local and find that the display is turned on automatically after booting, and you have to run the command again to check the reason again, saying: "it is newly found that if the terminal inputs' sudo chmod 4755 / etc/rc.local'to confirm, the system can be started before you enter the login password when you boot into the system, and the effect feels more thorough.

The above is the Ubuntu independent graphics card is not easy to use how to close the independent graphics card, the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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