Update (09/09/20110): I no longer use CR-48 because of its hardware limitation. The solutions in this post may not be working as Chrome OS kernel is updated frequently. Sorry for the disappointment.
Update (01/05/2010): As Pheonix7117 pointed out in the comment, here is the fix to the Touchpad issue in Ubuntu. Note that you don’t need to do the first step (Downgrade Xorg) and the last step (Broken Packages) if you are running Lucid (Ubuntu 10.04) on the CR-48.
Update (12/26/2010): For those of you never read comments (like me), Pheonix7117 has posted another tip for vertical scrolling using the touchpad. Here is the direct copy of Pheonix7117’s comment:
Update (12/21/2010): Pheonix7117 posted a Python script for controlling the xbacklight in the comments section. I only have a little understanding of Python language, but I think it’s a well-written script to control the backlight with the keyboard.
Ever since I installed Ubuntu on CR-48, I wondered about how to improve the touchpad speed and keyboard functions. I experimented with the touchpad driver today and noticed that while I can enable the touchpad tab inside the Mouse property with xinput, the options under the touchpad tab doesn’t seem to take any effect. Therefore I have to find Â other ways to configure the touchpad. The keyboard configuration was easy since all the functions are available in Ubuntu except for the right click, caps-lock and delete keys.
General setup - Under the general tab in the Mouse Preferences, move theÂ AccelerationÂ andÂ Sensitivity sliders to the max fast and high respectively so that the cursor could move a little fast and reduce the chance to accidentally tap the touchpad while typing.
Left click and right click - The bottom left and bottom rightÂ cornersÂ of the touchpad recognize by Ubuntu as the left and right buttons, while toward middle of the touchpad doesn’t have any click event.
Middle click (Scrolling wheel) – I usually use the middle click on web pages when I want to open a link in a new tab. It doesn’t have a middle button on the touchpad. However, I can use Ctrl + tap to open a link to a new tab in most of the browsers. As for the most of the applications I use, none of them has middle click event except for games, which cannot run on this notebook because of the hard drive space limit.
The brightness keys – Install the xbacklight package, and assign the following commands to the correspondingÂ keys on the first row of the keyboard through Keyboard Shortcuts window:
xbacklight -dec 10 Â Â # Decrease the backlight by 10
xbacklight -inc 10 Â Â Â # Increase the backlight by 10
The volume mute, decrease volume, and increase volume keys - Change the default shortcuts for Volume mute, Volume down, and Volume up in the Keyboard Shortcuts window to the appropriate keys on the top row of the keyboard.
Right click, caps-lock and delete keys - As I stated earlier, I cannot find the functions for these keys since they are not available on the keyboard. However, you can use some remapping programs to remap these keys to the available keys.
Do you have any other touchpad and keyboard related tips for CR-48? Please share them below. Also leave a comment below if you have any questions for this topic.