gmux-scripts | get switching to work on the MBP

gmux-scripts is a Shell library. gmux-scripts has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

gpu switching for 2010 macbook pros. this is highly experimental. expect crashes and lockups. even though i haven't experienced anything serious, i'm not responsible if it causes your macbook to explode or worse. prerequisites: a running ubuntu 12.04 system, booting via bootcamp/bios envytools: optional: nvidia proprietary driver (install nvidia-current, but keep it blacklisted in /etc/modprobe.d, make sure nouveau is not blacklisted) optional: bumblebee: really useful: setup ssh and networking so it's automatically available after boot. checking "available to all users" in the configuration dialog should do the trick. usage: get the current status: $ cat /sys/kernel/debug/vgaswitcheroo/switch after boot the nvidia card is active. switch between both cards with $ echo igd > /sys/kernel/debug/vgaswitcheroo/switch $ echo dis > /sys/kernel/debug/vgaswitcheroo/switch you can also tell it to do a delayed switch (wait until x is stopped, then switch) $ echo digd > /sys/kernel/debug/vgaswitcheroo/switch $ echo ddis > /sys/kernel/debug/vgaswitcheroo/switch and power the card not in use on/off: $ echo on > /sys/kernel/debug/vgaswitcheroo/switch $ echo off > /sys/kernel/debug/vgaswitcheroo/switch start/stop x: $ start lightm $ stop lightm use the dedicated card on demand with bumblebee (with nouveau): # switch to igd, start lightdm, log in before $ cd gmux-scripts/bin $ ./bumblebee-nouveau.sh # in another terminal $ optirun glxspheres $ optirun bash # stop