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This article mainly introduces whether linux can shield independent operation, has certain reference value, interested friends can refer to, I hope you have a lot of gains after reading this article, let Xiaobian take you to understand.

Notebook use Ubuntu heat dissipation is very large, so I want to ban the stand-alone, the machine is dual graphics, stand-alone is ATI5650, there are only two options in the BIOS, either only stand-alone, or use graphics switchable mode. It seems that Ubuntu 10.10 already supports graphics switchable mode. Select switchable mode. Googling, roughly to find this file/sys/kernel/debug/vgaswitcheroo/switch. If you don't have this file, it's because you have ATI drivers installed, uninstall them, and restart them. Here's how to uninstall ATI drivers:

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/vgasswitcheroo/switch should already exist, execute the command:

echo IGD 》 /sys/kernel/debug/vgaswitcheroo/switch

echo OFF 》 /sys/kernel/debug/vgaswitcheroo/switch

Centralized display enabled, individual display closed. By default, both are on. The requested URL/sys/kernel/debug/vgasswitchoo/switch was not found on this server.

To do this at boot, add these two sentences to/etc/rc.d/rc.local and restart.

sudo cat /sys/kernel/debug/vgaswitcheroo/switch

If it shows

0:IGD：+：Pwr:0000:00:02.0

1:DIS： ：Off:0000:01:00.0

Proof of successful closure of stand-alone.

PS：

After writing the command to disable the display and enable the display into/etc/rc.local, it is found that after booting, it is still automatically turned on, and you have to run the command again to check the reason again, saying: "New discovery, if you enter"sudo chmod 4755 /etc/rc.local"in the terminal, you can make the system start before you enter the login password when booting the system. The effect feels more thorough.

Thank you for reading this article carefully. I hope that the article "Can linux block independent operation" shared by Xiaobian will be helpful to everyone. At the same time, I hope that everyone will support it more, pay attention to the industry information channel, and more relevant knowledge is waiting for you to learn!

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