Web proxy server - 116 Part I . Linux First Steps Getting

116 Part I . Linux First Steps Getting New X Drivers Working video drivers are available with most video cards you can purchase today. However, to get some advanced features from your video cards (such as 3D acceleration) you may need to get proprietary drivers directly from the video manufacturers. In particular, you may want to get drivers from NVIDIA and ATI. To get new drivers for video cards or chipsets from NVIDIA, go to the NVIDIA site (www.nvidia.com) and select the Download Drivers button. Follow the link to Linux and FreeBSD drivers. Links from the page that appears will take you to a Web page from which you can download the new driver and get instructions for installing it. For ATI video cards and chipsets, go to www.ati.com and select Drivers & Software. Follow the links to Linux drivers and related installation instructions. Tuning Up Your X Configuration File The xorg.conf file might look a bit complicated when you first start working with it. However, chances are that there are only a few key elements you will need to change in it. As root user, open the /etc/X11/xorg.conf file in any text editor. Here are some things you can look for: . Mouse Look for an InputDevice section with a Mouse0 or Mouse1 identifier. That section for a simple two-button, PS2 mouse might look as follows: Section InputDevice Identifier Mouse0 Driver mouse Option Protocol PS/2 Option Device /dev/psaux EndSection If you are unable to use some feature of the mouse, such as a middle wheel, you might be able to get it working with an entry that looks more like the following: Section InputDevice Identifier Mouse0 Driver mouse Option Protocol IMPS/2 Option Device /dev/psaux Option ZAxisMapping 4 5 EndSection Don t change the mouse identifier, but you can change the protocol and add the ZAxisMapping line to enable your wheel mouse. Try restarting X and trying your mouse wheel on something like a Web page to see if you can scroll up and down with it.

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