Obviously Ubuntu for some graphics cards to drive issues to the service is not very complete, this question should actually be attributed to some of the graphics card manufacturers, but seems to have an ati graphics card under Linux to the catalyst, but I look at the Internet, or installed like a lot of people or less some problems, and I tried, because the installation program has been previously suggested that somehow there is a version of the driver is installed, and to uninstall to install, so decisive or disabled out alone, with the set was already enough, I went to the machine configuration is Y460, is significant independence HD5650, is additionally Ubuntu 12.04 version with wubi installed, spell and win7 dual system.
Ubuntu notebook using a large amount of heat, so want to ban single display, the machine is dual graphics cards, significant independence is ATI5650, the BIOS only two choices, either only the single display, or use the card to switch modes. Ubuntu 10.10 seems to have support switchable graphics mode. Select to switch modes. Under Google, and generally it is to find the file / sys / kernel / debug / vgaswitcheroo / switch. If it does not, because you installed the ATI driver, uninstall, and then restart it, here's how to uninstall ATI drivers:
sudo sh /usr/share/ati/fglrx-uninstall.sh
If no such file is executed:
sudo apt-get remove --purge fglrx fglrx_ * fglrx-amdcccle * fglrx-dev * xorg-driver-fglrx
If the file / sys / kernel / debug / vgaswitcheroo / switch should existed, execute the command:
echo IGD> / sys / kernel / debug / vgaswitcheroo / switch
echo OFF> / sys / kernel / debug / vgaswitcheroo / switch
Set was enabled, independence was closed. Default Both are open. Are interested you can look at the file / sys / kernel / debug / vgaswitcheroo / switch.
To that is executed when the system starts, these two added /etc/rc.d/rc.local, and restart.
sudo cat / sys / kernel / debug / vgaswitcheroo / switch
0: IGD: +: Pwr: 0000: 00: 02.0
1: DIS:: Off: 0000: 01: 00.0
Proof alone was successfully closed.
In that will enable disabled independence was set was written /etc/rc.local command found in the boot automatically open or alone, they have to run a command, check the reasons again, he said: "The new findings, if the input terminal" sudo chmod 4755 /etc/rc.local "after confirmation, the system can login to the system at boot time, before you lose password will start feeling more thorough effect, hey." according to the test, it really has become.