Ubuntu12.10 dual graphics card overheating problem

The graphics card of my machine is ATI6630/Intel. If I use the open-source driver that comes with Ubuntu12.10, the dedicated display will always run, and the machine will be very hot in a short time. I tried fglrx, a closed-source driver of ATI. After the driver is installed, X cannot be used, or compiz and Unity cannot be displayed. There is only one wallpaper. The reason is that Xorg has a problem with support for the Ubuntu12.10 closed-source driver and needs to be updated. In this case, to restore the desktop, you only need to right-click the desktop and set

The graphics card of my machine is ATI6630/Intel. If you use the open-source driver that comes with Ubuntu 12.10, The duanxiang will always run, and the machine will be very hot soon. I tried fglrx, a closed-source driver of ATI. After the driver is installed, X cannot be used, or compiz and Unity cannot be displayed. There is only one wallpaper. The reason is that Xorg has a problem with support for the Ubuntu 12.10 closed-source driver and needs to be updated. In this case, to restore the desktop, right-click the desktop, set the desktop background, and return to the system settings, in the software source> driver, change the graphics card driver settings back to the open-source driver.

I tried to reinstall Ubuntu 12.04 and install the closed source driver portal. Then there will still be the above problems.

You have to try to disable the exclusive display as follows:

Get root permission

Sudo su settings use integrated video card output

Echo IGD>/sys/kernel/debug/vgaswitcheroo/switch disable unused independent graphics cards

Echo OFF>/sys/kernel/debug/vgaswitcheroo/switch to view the current video status

Cat/sys/kernel/debug/vgaswitcheroo/switch:

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

1: DIS: Off: 0000: 01: 00.0 where IGD is an integrated video card and DIS is an independent video card. Because of the dual-graphics card, it is usually impossible to set an independent graphics card for separate output. When running an independent video card, you also need to integrate the video card. If you do not play games, you do not need independent graphics cards for Ubuntu.

Enable independent graphics card

Echo ON>/sys/kernel/debug/vgaswitcheroo/switch write configuration to boot settings

Vi/etc/rc. local is added before exit 0

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

Echo OFF> Save/sys/kernel/debug/vgaswitcheroo/switch and exit.

Since then, the machine overheating problem has been significantly improved, and no influence on the image effect has been found.

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