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--- docs:xorg [2009-03-16 14:46] – pawelz
+++ docs:xorg [2013-04-05 10:00] (current) – slug from it's own site glen
@@ Line 1: / Line 1: @@
-/* pragma: section-numbers 2 */
 ====== X.Org ======
-Implementation of the X Window System
-===== Resources =====
-  * [[http://www.x.org/|Project homepage]]
-===== Contents =====
-/* UndefinedMacro: TableOfContents(None) */
+[[http://www.x.org/|The X.Org]] project provides an open source implementation of the [[wp>X Window System]].
 ===== The simplest working config (th) =====
 The shortest way to working xorg with mouse and keyboard for common hardware configurations:
@@ Line 25: / Line 10: @@
 poldek -u xorg-driver-video-$YOUR_VIDEO_DRIVER
 poldek -u xorg-driver-input-evdev
-poldek -u xorg-driver-input-keyboard
-poldek -u xorg-driver-input-mouse
 # install hal and dbus
 poldek -u hal dbus
@@ Line 50: / Line 33: @@
 You need typical keyboard and mouse configuration sections, too.
+===== xserver 1.8+ and input devices + udev =====
+Hal is no longer used. See [[https://wiki.ubuntu.com/X/Config/Input#Input|https://wiki.ubuntu.com/X/Config/Input#Input]]
+NOTE: **xinput** is in **xorg-app-xinput** package in PLD Linux.
+==== xserver 1.8+ and keyboard ====
+Configuration stored in '/etc/X11/xorg.conf.d/10-keyboard.conf' supposed to support pl national characters and ctrl-alt-bkspc. Missing ctrl-alt{-,+}) though.
+<file>Section "InputClass"
+        Identifier "keyboard-all"
+        Driver "evdev"
+        Option "XkbLayout" "us,pl"
+        Option "XkbModel" "evdev"
+        Option "XkbVariant" ",qwerty"
+        #Option "XkbOptions" "grp:alt_shift_toggle,grp:switch,compose:rwin,terminate:ctrl_alt_bksp"
+        Option "XkbOptions" "compose:rwin,terminate:ctrl_alt_bksp"
+        Option          "LeftAlt"       "Meta"
+        Option          "RightAlt"      "ModeShift"
+        MatchIsKeyboard "on"
+EndSection
+</file>
+==== xserver 1.8+ and synaptics ====
+Consider creating file '/etc/xorg.conf.d/10-synaptics.conf' containing:
+<file>Section "InputClass"
+        Identifier      "touchpad catchall"
+        Driver          "synaptics"
+        MatchIsTouchpad "on"
+        MatchDevicePath "/dev/input/event*"
+        Option          "SHMConfig"             "true"
+        Option          "HorizEdgeScroll"       "1"
+        Option          "VertEdgeScroll"        "1"
+        Option          "TapButton1"            "1"
+        Option          "TapButton2"            "1"
+        Option          "TapButton3"            "1"
+        Option          "AccelFactor"           "0.001"
+EndSection
+</file>
@@ Line 94: / Line 125: @@
 ===== synaptics and mouse tapping =====
+**WARNING**: do not add any kind of synaptics entries to xorg.conf. If you do, xorg will see two of them -- the manually-added one and the automatically-detected one (type //xinput list// to see a list of all detected input devices) and all of the configuration options listed below will get applied to the **wrong** one. In other words, as long as there's a synaptics entry in xorg.conf, you won't have any way to change the drivers configs.
 Xorg v7.4 does not enable tapping by default. To enable add to 11-x11-synaptics.fdi:
@@ Line 112: / Line 145: @@
+===== 100% CPU usage when using xdm (kdm, gdm) and SysVinit (not upstart-SysVinit) =====
+The problem is that when xdm runs with recent X server then tty0 (as it's first free tty) is taken by xserver. Then when [[:SysVinit|SysVinit]] tries to run mingetty also on tty0. This ends with mingetty fighiting with X server for tty0.
+upstart-Sysvinit is not affected as it starts mingetty before xdm runs, so xdm choses different, first free ttyX.
+Solution: change xdm to use fixed tty that's not used in inittab for mingettys (like tty9).
+===== xorg-driver-video-intel >= 2.9.99.0 requires KMS =====
+Latest Intel xorg drivers require KMS (kernel mode setting) to be active. Run kernel >= 2.6.31 and set in /etc/sysconfig/geninitrd:
+<file>PREMODS="intel-agp i915"
+</file>
+and regenerate geninitrd.
+Alternatively run:
+<file>modprobe i915
+</file>
+===== XDMCP =====
+If you want to create cross computer X sessions using XDMCP please enable it *dm (kdm, gdm) on machine you wish to connect to.
+Now you can run:
+<file> X -query xdmcp.enabled.server
+</file>
+or just  X or local kdm and select network log in instead of local log in.
+==== Source IP# number problem on client machine ====
+Rules which X selects interface on which it binds for X sessions are not clear for some people. If you spot problem :
+<file>XDMCP fatal error: Session failed Session <some_number> failed for display my.adress.not.acessible.to.server:0: cannot open display
+</file>
+Try if forcing connection source ip adress helps:
+<file> X -query xdmcp.enabled.server  -from  my.adress.acessible.to.server
+</file>