102 CHAPTER 8 GETTING EVERYTHING UP AND (Web design seattle)
102 CHAPTER 8 GETTING EVERYTHING UP AND RUNNING ADDITIONAL NOTEBOOK CONFIGURATION Generally speaking, a notebook computer will not need any configuration above and beyond what s outlined in this chapter. For example, if you have a wireless PCMCIA card, you can simply follow the instructions under the Configuring a Wireless Card heading. However, you may also have a touchpad or be able to adjust your CPU s frequency. Touchpad Configuration If your notebook has a Synaptics TouchPad, you may want to configure it to your liking. Many notebooks come equipped with Synaptics hardware, although there are also similar touchpads made by Alps and other manufacturers. If your touchpad is a genuine Synaptics pad, Ubuntu will have installed the correct driver automatically. This should let you use the right edge of the pad to fast scroll through documents and web pages. Sadly, Ubuntu doesn t come with any way of configuring the touchpad (the Mouse applet under the System . Preferences menu will have no effect). This means that you will be unable to adjust the sensitivity of the pad to your tastes. However, you can download and use GSynaptics, which allows you to set touchpad preferences. Go to http://sourceforge.jp/projects/gsynaptics. Look for the download file created for Ubuntu systems and download it (the file will have a .deb file extension). Then open a GNOME Terminal window (Applications . Accessories . Terminal) and type sudo dpkg i filename, replacing filename with the name of the file you downloaded. Before you can use GSynaptics, you need to add a line to your X.org configuration file. You can do this by editing the file in Gedit. Type sudo gedit /etc/X11/xorg.config in the GNOME Terminal window to open the configuration file. Look through the document for the line that reads Identifier “Synaptics Touchpad” and then, beneath it, insert a new line that reads Option “SHMConfig” “true”. Then save the file and reboot your system. Once Ubuntu is up and running, click System . Preferences . Touchpad to start GSynaptics. If you have an Alps touchpad, you can configure its tap-to-click function using the tpconfig utility, which you can download via the Synaptic Package Manager. To find out how to use it, open a GNOME Terminal window and type man tpconfig. If all you want to do is turn off tap-to-click behavior, type sudo tpconfig t0. CPU Frequency Scaling Another handy notebook add-on is the GNOME CPU Frequency Scaling Monitor. If you have a compatible CPU in your notebook, this tool lets you adjust the speed of the chip to save battery power. Most modern mobile- oriented CPUs support this function. Unfortunately, because of its ability to slow down your system, the applet is considered a security risk. Before you use it, you must reconfigure your system to allow it to work. Open a GNOME Terminal window (Applications . Accessories . Terminal) and type sudo dpkg-reconfigure gnome-applets. You ll then be asked if you want to set the SUID of the frequency applet. Select Yes. Reboot your computer, and then right-click a blank spot on the Panel at the top of the screen. Click Add to Panel and then, in the dialog box that appears, scroll down to the System & Hardware heading. Click the CPU Frequency Scaling Monitor icon and click the Add button. To alter your CPU frequency, click the applet and choose the clock speed setting you desire.
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