Note: There is also a graphical configuration tool, xorgcfg 1 , which comes with the X11 distribution. It allows you to interactively define your configuration by choosing the appropriate drivers and settings. This program can be invoked from the console, by typing the command xorgcfg -textmode.
For more details, refer to the xorgcfg 1 manual page. Alternatively, there is also a tool called xorgconfig 1. This program is a console utility that is less user friendly, but it may work in situations where the other tools do not. See the agp 4 driver manual page for more information. This will allow configuration of the hardware as any other graphics board. Note on systems without the agp 4 driver compiled in the kernel, trying to load the module with kldload 8 will not work.
This section assumes a bit of advanced configuration knowledge. If attempts to use the standard configuration tools above have not resulted in a working configuration, there is information enough in the log files to be of use in getting the setup working.
Use of a text editor will be necessary. Examples of some common screen resolutions for aspect ratios are:. At some point, it will be as easy as adding one of these resolutions as a possible Mode in the Section "Screen" as such:.
If those ModeLines do not exist in the drivers, one might need to give Xorg a little hint. Simply look for information resembling this:.
This information is called EDID information. Creating a ModeLine from this is just a matter of putting the numbers in the correct order:. So that the ModeLine in Section "Monitor" for this example would look like this:. To perform this task, type: Xorg -config xorg. Ask Ubuntu is a question and answer site for Ubuntu users and developers.
It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. As Ubuntu Where can I find the configuration files I need to edit? Check the current manual. If you create a xorg. Also check this answer. There are some files in this directory already. You can find more information on xorg.
What is important is that the filenames should start with a two-digit number greater than Another guide - in english - is on x org archive. It did finally error-out, but not before providing a nice new xorg.
Thanks cc! All the other suggestions I had tried failed to produce a file. Yeah for most free graphics drivers, recent releases of Ubuntu haven't required a xorg. You can generate one pretty easily though:. This works fine for me with Nvidia Optimus Bumblebee without any special configuration, just the defaults:.
For more information about monitors. For users running Ubuntu Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Where is the X. How do I configure X there? Ask Question. Asked 11 years, 3 months ago. Make your changes. Save the file and restart the X server.
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Check for an existing configuration file. To see if you already have the Xorg. If the file exists, skip to Step 8. If there is no such file, you can create it from the console by continuing with this method. Most people will never need to edit xorg. You'll only need to create or edit this file if you have a specific reason, such as an advanced configuration or a need to add specific text required to make certain hardware work. This will bring up a new login prompt.
Log in as the root user. If you're hesitant to log in as root, even from the console, you can log in as a regular user and preface the remaining commands in this method with sudo.
Run the stop command for your window manager. Some examples: If you're using LightDM, you'll run service lightdm stop. If you're using Gnome, you'll run service gdm stop. This is where you'll be creating the configuration file. Run sudo Xorg -configure.
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