Disable independent graphics card in Ubuntu

It is clear that Ubuntu does not completely provide services for some graphics card-to-driver problems. This problem should be attributed to some graphics card manufacturers, but the ati graphics card seems to have come out of the Linux environment as a catalyst, unfortunately, on the Internet, it seems that many people have installed more or less problems, and I have tried it because the installer inexplicably prompts that a previous driver version has been installed, the installation can only be performed after the installation is uninstalled. Therefore, you must disable the exclusive display function. It is enough to use the set display function. From the machine configuration to Y460, the exclusive display is HD5650, and Ubuntu is version 12.04.

It is clear that Ubuntu does not completely provide services for some graphics card-to-driver problems. This problem should be attributed to some graphics card manufacturers, but the ati graphics card seems to have come out of the Linux environment as a catalyst, unfortunately, on the Internet, it seems that many people have installed more or less problems, and I have tried it because the installer inexplicably prompts that a previous driver version has been installed, you can only install the SDK after it is uninstalled. Therefore, you must disable the unique display feature. You can use the set display feature. I have configured the server as Y460, the dedicated display as HD5650, and Ubuntu as version 12.04, install it with wubi and build a dual system with win7.

Ubuntu 12.04 laptop turn off independent graphics card http://www.linuxidc.com/Linux/2012-07/66667.htm

Use Bumblebee to control NVIDIA dual graphics card (Ubuntu) http://www.linuxidc.com/Linux/2012-09/70418.htm
 
For me this Ubuntu cainiao, disabled graphics card check for a long time, finally found the answer in the http://www.linuxidc.com, first uninstall the previous driver, and then enable the set display, disable the dedicated display, excerpt in this record:

The usage of Ubuntu in a notebook is very heat-free, so I want to disable the dual-graphics card and ATI5650 for the computer. There are only two options for the BIOS: Use the dual-display only, or use the video card to switch the mode. It seems that Ubuntu 10.10 already supports the convertible mode of the video card. Select the switchover mode. Google will find the file/sys/kernel/debug/vgaswitcheroo/switch. If you do not have this file, it is because you have installed the atidriver. Uninstall the file and restart it. The following describes how to uninstall the atidriver:
 
Sudo sh/usr/share/ati/fglrx-uninstall.sh
 
If this file is not available, run:
 
Sudo apt-get remove -- purge fglrx _ * fglrx-amdcccle * fglrx-dev * xorg-driver-fglrx
 
If the file/sys/kernel/debug/vgaswitcheroo/switch exists, run the following command:
 
Echo IGD>/sys/kernel/debug/vgaswitcheroo/switch
 
Echo OFF>/sys/kernel/debug/vgaswitcheroo/switch
 
Enable the set display and disable the set display. Both are enabled by default. If you are interested, check this file/sys/kernel/debug/vgaswitcheroo/switch.
 
Add the two statements to/etc/rc. d/rc. local and restart the system.
 
Sudo cat/sys/kernel/debug/vgaswitcheroo/switch
 
If
 
0: IGD: +: Pwr: 0000: 00: 02.0
 
1: DIS: Off: 0000: 01: 00.0
 
It indicates that the uniqueness is successfully disabled.

PS:
 
Write the command for disabling the Enable set display of the dedicated display into/etc/rc. after the local device is turned on, the local device automatically opens the exclusive display and runs the command again to check the cause again, saying, "new discoveries: If you enter" sudo chmod 4755/etc/rc "on the terminal. after local "is confirmed, the system will be started before you enter the password when you log on to the system. The effect is more thorough." The test turned out to be.

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