Post office web site - 356 Part II . Getting Around in Linux
356 Part II . Getting Around in Linux 11. Some video cards require a RAMDAC setting. Check with your video card manufacturer or look on the card itself for the RAMDAC chipmaker. This is usually a large chip near the video output connector. 12. Some video cards have a programmable clockchip that requires configuration. Newer video cards do not use this. Unless you know your video card requires this setting, hit Enter to go on without making a selection. 13. Older video cards required clock probes to get the correct clock information. This could either be done during setup and put in the configuration file or be done every time the X server started. Unless your video card is several years old it is best to not do a probe. 14. The next several screens let you set the supported resolutions and color depths. The default settings are displayed, but you have the option to change them if you want. 15. Virtual desktops allow you to have a resolution that is larger than your monitor can support. This way you can scroll around the larger desktop and have more workspace. When prompted, tell xf86configwhether you want to use virtual desktops or not. 16. The final step is to have xf86config write the new XF86Configfile. Exam Tip Figure 9-8: xf86config xf86config is a text mode configuration tool that is harder to use than XF86Setup. Detecting video hardware The SuperProbe tool can be used to probe the video hardware in a system and report back information. This information can be useful for determining which video card to choose with the other XF86Config creation tools. Be careful though; this tool can cause the system to lock up, requiring you to reboot. The following is an example of its output:
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