Installing Trisquel 6 on an X230

These notes refer to installation on an X230 system, model 2306-CTO.

Thinklight and backlit keyboard

Both of these features work as expected out of the box.

Brightness

Brightness control works using the expected Fn + function keys, however only 6 levels are detected. To control up to 16 levels of brightness, you can add the acpi_backlight=vendor kernel parameter to the boot options¹ :

1. Edit the /etc/default/grub file:
   $ gksudo gedit /etc/default/grub
2. Append acpi_backlight=vendor to the default kernel parameters:
   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
3. Update GRUB:
   $ sudo update-grub

Reboot to make the changes effective.

NOTE!

Although more brightness levels will be supported, the Gnome indicator will not display the brightness level acurately. See the bug report link below.

Check these links for more information:

• http://forums.lenovo.com/t5/Linux-Discussion/Contact-to-engineers-developers-for-fixing-ACPI-Backlight-broken/td-p/992621
• https://bugzilla.kernel.org/show_bug.cgi?id=51231

Wireless

Wireless does not work with 100% free drivers out of the box. The internal half mini PCIe card can't be replaced by a compatible card as this system uses BIOS whitelisting. There isn't a modified BIOS available yet (as of Jan 15 2013).

As a workaround, an external USB adapter such as those sold by ThinkPenguin can be used.

Fingerprint reader

The fingerprint reader does not work with 100% free drivers out of the box.

Battery

Several optimizations are needed to maximize battery time. Most apply to any Gnu/Linux distributions, except for running Libre kernels. See Optimizing battery time on the Trisquel wiki.

When testing the newest Libre kernels as indicated on the Trisquel wiki, some functionality was lost (like wireless access and brightness controls)

References

1. Ubuntu 12.04/Mint 13 and X60s - brightness controls issue