讓我來亂講一下，請不要介意。 ※ 引述《sunfox (三福士)》之銘言： : 大部份顯示晶片的 driver 應該都是 針對 XP 寫的 ? : 發現很多以下的情況 : 就是 某顯示晶片 在XP的環境下 解析度 可以 有 : 1280x1024 1280x720 1024x768 800x600 648x480 : 上面的多種選擇 : 但同樣的硬體 : 裝了 linux 且 linux 也抓到了硬體並驅動 : 但是 解析度 卻只有 1024x768 800x600 648x480 : 這三種選擇 ...... : 怎麼改 xorg.conf 都沒用 : 很 0rz..... : 我用 centos 5.2 ... 解析度是 1024x768 ^^^^^^^^^^沒用過，不會用 XD : 但詭異的是 只要 reboot 之後 就只剩 800x600 648x480 可以選擇 : 神奇的地方是 我把 xorg.conf 刪除 之後 接著完全關機 : 在按 power 鈕 一開機 又自動變成 1024x768 : 且 xorg.conf 也沒有再變出來 : 0rz..... http://www.linuxmanpages.com/man5/xorg.conf.5x.php INTRODUCTION Xorg supports several mechanisms for supplying/obtaining configuration and ^^^^^^^^^^^^^^^^^^ run-time parameters: command line options, environment variables, the xorg.conf configuration file, auto-detection, and fallback defaults. When the same information is supplied in more than one way, the highest precedence ^^^^^^^^^^^^^^^^^^^^^^ mechanism is used. ^^^^^^^^^^^^^^^^^ https://help.ubuntu.com/community/XORGHardy Within the Xorg 7.1 releases there was a concious effort to try to deal with ^^^^^^^^ users Xorg setup requirements better. Dynamic hardware configuration was ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ introduced and has been getting better and better. The current Ubuntu (8.04 Hardy Heron) release utilises this technology to a greater extent than ever before. Instead of having a long /etc/X11/xorg.conf file with lots of complex and hard to grasp information, the 8.04 release /etc/X11/xorg.conf file looks something more like this. As you can see from this example the information held in /etc/X11/xorg.conf file has been very much reduced, this is because on Xserver startup, Xorg detects your hardware and makes its best possible configuration available to you. This configuration is dynamic so it is held in the X servers memory, ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ that way if you shutdown, change your hardware, on the next start up Xorg will re-detect your hardware and recreate your config in memory. 簡單地說，從Xorg 7.1開始，xorg.conf只是參考用。 --

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