TechRepublic: Linux 101: Configure your video displayDec 29, 1999, 20:38 (6 Talkback[s])
(Other stories by Jack Wallen)
"Configuring a Linux display offers a different challenge than configuring a Windows display. In philosophical discordance with the Microsoft way of thinking, to properly (the key here being properly) set up a Linux video display, it is imperative that you know a few details about both your monitor and your video card."
"When setting up a Linux display, you have two choices: Choose your monitor from a list or choose custom. The custom configuration is the best suited for any situation and can be refined much farther than a standard installation. There are only a few bits of information that you will need in order to set up your video display with the custom configuration. The critical configurations are the vertical refresh rate (the rate at which the whole screen is refreshed) and, most importantly, the vertical sync range (the rate at which the scan lines are displayed)."
"The higher refresh rate chosen, the less likely your monitor will experience "flicker." When choosing the refresh rate, try not to drop below 65 Mhz. New monitors will easily accept refresh rates of 65 Mhz or better. ... Vertical Sync Range: Again, the higher the number, the clearer the picture. In Red Hat's distribution, the vertical sync range is given in increments of: 50-70, 50-90, 50-100, and 40-150 and measures the number of times per second the monitor can traverse its beam vertically. Typically, newer monitors should be set at the 50-100 range.
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