Installing Ubuntu 12.10 (or 12.04) on systems based on Intel N2600 (CedarTrail)

Yesterday my friend got himself an Acer Aspire One D270 with the N2600 chip inside. Trouble was when he tried to install Ubuntu 12.10 on the system. We hit a reboot after the following kernel messages:

Starting crash report submission daemon [OK] 
Starting CPU interrupts balancing daemon [OK] 
Stopping save kernel messages [OK] _

The fix:

Add "text acpi=off" to the boot parameters in the default grub entry (before “quiet no-splash” part.

This will boot you into a console.

Add the file xorg.conf: sudo vi /etc/X11/xorg.conf

Add the text:

Section "Device"
Identifier "Intel GMA3600"
Driver "fbdev"

Save and quit.

Now start lightdm: sudo lightdm start

Now install as usual.

You have to make similar changes during your first boot.

Finally install CedarTrail drivers for linux from here:

Enjoy 🙂

Note: The back-light of the display (LVDS) appeared pretty dim. Appeared that the DPST routines weren’t implemented properly or more probably the kernel ignoring the DPST calls from the default driver in the GM5600 driver bundled in the Ubuntu 12.10 repos. Adding the lines GRUB_CMDLINE_LINUX=”acpi_backlight=vendor” to /etc/default/grub fixed this.

PS: The acpi=off might be a disaster and it shouldn’t be kept off! I’m yet to play with it and turn it back on. Will update my findings soon.

Update: The system plays well without the acpi=off boot parameter once installed. 🙂


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