Asus switcheroo

From Hybridgraphics

The Asus Switcheroo module can be obtained at:

https://github.com/awilliam/asus-switcheroo/

Script-based solution ( by eemil@gmx.com )

The script-based system includes several files, and allows automatic switching between intel and nvidia, at least on pre-optimus UL30VT.

Here is how it works:

1. User writes either "intel" or "nvidia" to /home/user/switcheroo.txt.
2. Script detects this and waits for the user to log out (detected as user's gnome-session not running)
3. Turns off gdm3 (debian) or gdm (ubuntu).
4. Uses the awilliam module (asus-switcheroo) to switch to the desired card.
5. Uses acpi_call to turn off nvidia if required
6. Links appropriate version of libglx.so and libGL.so, and xorg.conf so that X and openGL apps can find them
7. Starts gdm again.

Attached:

• my xorg.conf files for both cards.
• display-settings, the script that does one-shot card switching depending on switcheroo.txt, and runs at boot so that the last selected card will be used
• graphics-switch.sh, the script that monitors switcheroo.txt and calls display-settings when no user session is running
• graphics-switch-daemon, the script that starts graphics-switch.sh on the background at boot
• an example switcheroo.txt.

Hopefully comprehensive installation procedure:

acpi_call:

In cloned acpi_call git compile acpi_call, and then

sudo cp acpi_call.ko into /lib/modules/$( uname -r )/kernel/drivers/acpi/
sudo depmod -a

asus-switcheroo:

• In cloned asus-switcheroo git, do sudo make install-ubuntu
• Make sure that both /etc/modules and /etc/initramfs-tools/modules have the lines: asus_switcheroo dummy_client=1 i915_jprobe

xorg.conf files:

• IMPORTANT: If your PCI ID's are different, please modify. See lspci for the numbers.
• sudo cp xorg.conf.intel xorg.conf.nvidia /etc/X11/

To get nice notifications for scheduled switches:

sudo apt-get install notify-osd

Finally, my scripts:

• Make sure that U=your-user-name in the scripts
• Make sure that SESSION=your-session in the scripts (for example gnome-session or startx or ... )

sudo cp graphics-switch.sh graphics-switch-daemon display-settings /etc/init.d/.
sudo update-rc.d display-settings defaults
sudo update-rc.d graphics-switch-daemon defaults

These should run on Ubuntu and Debian, tested on Linux Mint Debian. Change the user (U=user) to your user.

• • • ====Attachments====***

asus-switcheroo display-settings

asus-switcheroo graphics-switch.sh

asus-switcheroo graphics-switch-daemon

asus-switcheroo xorg.conf.intel

asus-switcheroo xorg.conf-nvidia

asus-switcheroo switcheroo.txt