As Ubuntu 10.10 seems to neither detect my graphics card (Intel 82852/855GM) automatically nor use the corresponding Intel driver even after manually installing it, I am looking into manually configuring X (shouldn't I?). Where can I find the configuration files I need to edit?
8 Answers
The xorg.conf does not exist by default any more. You CAN create one though.
Boot into recovery mode and select Root Shell. Then run:
X -configure
Then:
cp /root/xorg.conf.new /etc/X11/xorg.conf
Reboot and you can edit the new Xorg.conf.
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The configurations files are at /usr/share/X11/xorg.conf.d
They are:
10-evdev.conf
11-evdev-quirks.conf
50-vmmouse.conf
50-wacom.conf
51-synaptics-quirks.conf
Check the current manual.
If you create a xorg.conf file the configurations of this file will prevail.
Also check this answer.
Usually, you don't need the xorg.conf any more.
If you need to configure some devices anyway, you can do so by placing a file in the /usr/lib/X11/xorg.conf.d/ (Ubuntu 10.04) or /usr/share/X11/xorg.conf.d/ (since Ubuntu 10.10). There are some files in this directory already.
You can find more information on xorg.conf.d (in german, but the configuration files are in english of course). What is important is that the filenames should start with a two-digit number greater than 10.
Another guide - in english - is on x org archive. It's still using /usr/lib but it's good.
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cookiecaper's suggestion to use
sudo X :1 -configure
worked for me - right from the desktop! It did finally error-out, but not before providing a nice new xorg.conf.new in my Home directory. Thanks cc! All the other suggestions I had tried failed to produce a file.
Oh, by the way,
man xorg.conf
in the terminal will provide a bunch of useful, and up to date, info (a bit terse, perhaps) on editing the xorg.conf file.
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This works fine for me with Nvidia Optimus (Bumblebee) without any special configuration, just the defaults:
#!/bin/bash
#
# Source: https://bbs.archlinux.org/viewtopic.php?id=140315
#
r=`zenity --width 400 --height 250 --title "Display setup" --text "Choose display mode:" --list --column "Modes" "Internal" "External" "Clone" "Extended"`
case "$r" in
Internal)
xrandr --output LVDS1 --auto \
--output VGA1 --off ;;
External)
xrandr --output LVDS1 --off \
--output VGA1 --auto ;;
Clone)
xrandr --output LVDS1 --auto \
--output VGA1 --auto --same-as LVDS1 ;;
Extended)
xrandr --output LVDS1 --auto --primary \
--output VGA1 --auto --left-of LVDS1 ;;
esac
The monitors LVDS1 and VGA1 are defined in ~/.config/monitors.xml. For more information about monitors.xml take a look at http://www.sudo-juice.com/dual-monitor-settings-in-ubuntu/.
Example:
<monitors version="1">
<configuration>
<clone>no</clone>
<output name="LVDS1">
<vendor>AUO</vendor>
<product>0x213c</product>
<serial>0x00000000</serial>
<width>1366</width>
<height>768</height>
<rate>60</rate>
<x>1280</x>
<y>256</y>
<rotation>normal</rotation>
<reflect_x>no</reflect_x>
<reflect_y>no</reflect_y>
<primary>yes</primary>
</output>
<output name="VGA1">
<vendor>GSM</vendor>
<product>0x43ff</product>
<serial>0x00035928</serial>
<width>1280</width>
<height>1024</height>
<rate>60</rate>
<x>0</x>
<y>0</y>
<rotation>normal</rotation>
<reflect_x>no</reflect_x>
<reflect_y>no</reflect_y>
<primary>no</primary>
</output>
<output name="HDMI1">
</output>
<output name="DP1">
</output>
</configuration>
</monitors>
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For users running Ubuntu 19.10, I can confirm that adding a configuration file by booting into recovery, selecting root shell, then running:
X -configure
Then entering:
cp /root/xorg.conf.new /etc/X11/xorg.conf
will both allow you to edit the configuration file, and fixes the common dual-monitor mouse flickering issue.
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For lost amd users: Please note that amd drivers provide a tool to generate xorg.conf
aticonfig --initial
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