I'm using Ubuntu 13.04 on the HP Pavilion dv7-6175us with AMD Radeon HD 6490M/Intel HD Graphics 3000 Switchable graphics. How can I make switchable graphics work on Ubuntu?
This guy's guide works: http://ubuntuforums.org/showthread.php?t=1930450&page=76
I've managed to install the fglrx driver and use the external graphics adapter. The problem is the new intel graphics driver.
Here's what I did:
Ensure that you have the deb files for the current AMD driver (created with --buildpkg as described in previous posts)
open a shell and download a previous version of the intel driver and it's dependencies:
mkdir temp cd temp wget http://launchpadlibrarian.net/119461148/libudev0_175-0ubuntu13_i386.deb wget http://launchpadlibrarian.net/111621162/xserver-xorg-video-intel_2.20.2-1ubuntu1_i386.deb
remove the eventually installed fglrx and the installed intel drivers. When removing the intel driver let it remove both packages
cd .. sudo apt-get remove fglrx* sudo apt-get remove xserver-xorg-video-intel
install the older driver with its dependencies
cd temp sudo dpkg -i libudev* sudo dpkg -i xserver-xorg-video-intel_2.20.2-1ubuntu1_i386.deb
now install the fglrx packages (go to the folder containing the fglrx deb files). Warnings about defect link groups can be ignored (at least I did)
cd <your folder with fglrx drivers> sudo dpkg -i fglrx*.deb
backup and remove the existing xorg.conf
sudo mv /etc/X11/xorg.conf /etc/X11/xorg.conf.backup
create a new config file and switch to the external graphics adapter
sudo aticonfig --px-dgpu sudo aticonfig --initial -f
That said, for 64-bit I had to pull the files from other sources than the ones listed in the post. Then in synaptic I locked the Intel drivers so they could not upgrade.