Karmic Koala MacBook 6,1

Here's a summary post of what I had to do to get Ubuntu 9.10 working on a MacBook 6,1. Not my work of course, just summarising the thread.

• Install 64-bit Ubuntu 9.10
• Ubuntu will fail to reboot, it stops at "restarting system". To fix this:
  
  Code:

  sudo vi /etc/default/grub

  and change the line:

  Code:

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

  to be:

  Code:

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=pci"

  Now do:

  Code:

  sudo update-grub

• Sound will not work. The chipset is supported by the latest ALSA (Linux sound system), but not by the one that ships with 9.10. To fix this, enter:
  
  Code:

  sudo apt-get install linux-backports-modules-alsa-2.6.31-17-generic

  This will install a more recent ALSA for you. Enter:

  Code:

  sudo vi /etc/modprobe.d/alsa-base.conf

  and change the line:

  Code:

  options snd-hda-intel power_save=10 power_save_controller=N

  to be:

  Code:

  options snd-hda-intel power_save=10 power_save_controller=N 
  model=mbp5

• Now reboot. It'll still freeze at the "Restarting system" step, just hold down the power button for a few seconds. Next time you reboot it should work.
• Start alsamixer and make sure every channel on every page is set to maximum and is not muted. Press 'm' to toggle mute, press cursor up/down to change volume, press cursor left/right to change channels, press Tab to change pages.

Currently my one remaining issue is the thing taking a long time to come out of suspend, 23s according to /var/log/messages. Does anyone else have this problem?

Original article here.