tailieunhanh - Chapter-28-XFree86 in depth

You don’t have to be a computer expert to see the similarity between monitors and TVs: current monitor technology is derived from TV technology, and many older display boards have modes that can use TVs instead of monitors. Those of us who were on the microcomputer scene 20 to 25 years ago will remember the joy of getting a computer display on a portable TV, a ‘‘glass tty’’ connected by a serial line running at 300 or 1200 bps. | 2 April 2003 17 00 47 The Complete FreeBSD page 505 In this chapter The problem with boards and monitors X configuration the theory XF86Config Multiple monitors and servers X in the network 28 XFree86 in depth The information in Chapter 6 should be enough to get X up and running. There s a lot more to X than that however enough to fill many books. In this chapter we ll look at some of the more interesting topics The next section describes the technical background of running X displays. On page 513 we ll look at setting up the XF86Config file. On page 520 we ll look at using more than one monitor with X. On page 521 we ll look at using X in a network. X configuration the theory Setting up your XF86Config file normally takes a few minutes but sometimes you can run into problems that make grown men cry. In the rest of this chapter we ll look at the technical background How display boards and monitors work. How to set up XFree86 to work with your hardware. How to tune your hardware for maximum display performance. How to fry your monitor. I mean the last point seriously conventional wisdom says that you can t damage hardware with a programming mistake but in this case you can and people do it from time to time. When you ve read the section on how monitors work you ll understand v 2003 04 02 04 22 45 505 2 April 2003 17 00 47 The Complete FreeBSD page 506 X configuration the theory 506 but please don t start tuning until you understand the dangers involved. How TVs and monitors work You don t have to be a computer expert to see the similarity between monitors and TVs current monitor technology is derived from TV technology and many older display boards have modes that can use TVs instead of monitors. Those of us who were on the microcomputer scene 20 to 25 years ago will remember the joy of getting a computer display on a portable TV a glass tty connected by a serial line running at 300 or 1200 bps. There are at least two ways to .