372 lines
14 KiB
Text
372 lines
14 KiB
Text
<!-- $Id: x.sgml,v 1.8 1999-04-10 00:03:58 dwhite Exp $ -->
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<!-- The FreeBSD Documentation Project -->
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<sect>
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<heading>The X Window System and Virtual Consoles<label id="x"></heading>
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<sect1>
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<heading>I want to run X, how do I go about it?</heading>
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<p>The easiest way is to simply specify that you want to run X
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during the installation process.
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<p>Then read and follow the documentation on the <htmlurl url=
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"http://www.freebsd.org/cgi/man.cgi?manpath=xfree86&query=xf86config"
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name="xf86config"> tool, which assists you in configuring XFree86(tm)
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for your particular graphics card/mouse/etc.
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<p>You may also wish to investigate the Xaccel server.
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See the section on <ref id="xig" name="Xi Graphics"> or
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<ref id="metrox" name="Metro Link"> for more details.
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<sect1>
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<heading>Why doesn't my mouse work with X<label id="x-and-moused"></heading>
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<p>If you are using syscons (the default console driver), you can
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configure FreeBSD to support a mouse pointer on each virtual
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screen. In order to avoid conflicting with X, syscons supports
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a virtual device called ``<tt>/dev/sysmouse</tt>''. All mouse events
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received from the real mouse device are written to the sysmouse
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device, using the MouseSystems protocol. If you wish to use your
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mouse on one or more virtual consoles, <bf/and/ use X, the
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following configuration is recommended:
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<verb>
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/etc/rc.conf:
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moused_type=ps/2 # or whatever your actual type is
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moused_port=/dev/psm0 # or whatever your real port is
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moused_flags=
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/etc/XF86Config
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Section Pointer
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Protocol "MouseSystems"
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Device "/dev/sysmouse"
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.....
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</verb>
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<p>Some people prefer to use ``<tt>/dev/mouse</tt>'' under X. To
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make this work, ``<tt>/dev/mouse</tt>'' should be linked to
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<htmlurl url="http://www.freebsd.org/cgi/man.cgi?sysmouse"
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name="/dev/sysmouse">:
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<verb>
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# cd /dev
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# rm -f mouse
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# ln -s sysmouse mouse
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</verb>
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<sect1>
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<heading>X Window menus and dialog boxes don't work right!</heading>
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<p>Try turning off the Num Lock key.
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<p>If your Num Lock key is on by default at boot-time, you may add
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the following line in the ``<tt/Keyboard/'' section of the
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<tt/XF86Config/ file.
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<verb>
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# Let the server do the NumLock processing. This should only be
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# required when using pre-R6 clients
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ServerNumLock
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</verb>
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<sect1>
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<heading>What is a virtual console and how do I make more?</heading>
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<p>Virtual consoles, put simply, enable you to have several
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simultaneous sessions on the same machine without doing anything
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complicated like setting up a network or running X.
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<p>When the system starts, it will display a login prompt on
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the monitor after displaying all the boot messages. You can
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then type in your login name and password and start working (or
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playing!) on the first virtual console.
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<p>At some point, you will probably wish to start another
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session, perhaps to look at documentation for a program
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you are running or to read your mail while waiting for an
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FTP transfer to finish. Just do Alt-F2 (hold down the Alt
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key and press the F2 key), and you will find a login prompt
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waiting for you on the second ``virtual console''! When you
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want to go back to the original session, do Alt-F1.
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<p>The default FreeBSD installation has three virtual consoles
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enabled, and Alt-F1, Alt-F2, and Alt-F3 will switch between
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these virtual consoles.
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To enable more of them, edit <htmlurl
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url="http://www.freebsd.org/cgi/man.cgi?ttys" name="/etc/ttys">
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and add entries for ``<tt/ttyv4/'' to ``<tt/ttyvc/'' after the
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comment on ``Virtual terminals'':
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<verb>
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# Edit the existing entry for ttyv3 in /etc/ttys and change
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# "off" to "on".
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ttyv3 "/usr/libexec/getty Pc" cons25 on secure
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ttyv4 "/usr/libexec/getty Pc" cons25 on secure
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ttyv5 "/usr/libexec/getty Pc" cons25 on secure
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ttyv6 "/usr/libexec/getty Pc" cons25 on secure
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ttyv7 "/usr/libexec/getty Pc" cons25 on secure
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ttyv8 "/usr/libexec/getty Pc" cons25 on secure
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ttyv9 "/usr/libexec/getty Pc" cons25 on secure
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ttyva "/usr/libexec/getty Pc" cons25 on secure
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ttyvb "/usr/libexec/getty Pc" cons25 on secure
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</verb>
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<p>Use as many or as few as you want. The more virtual terminals
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you have, the more resources that are used; this can be important
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if you have 8MB RAM or less. You may also want to change the
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``<tt/secure/'' to ``<tt/insecure/''.
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<p><bf/IMPORTANT NOTE/ if you want to run an X server you <bf/MUST/
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leave at least one virtual terminal unused (or turned off) for it
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to use. That is to say that if you want to have a login
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prompt pop up for all twelve of your Alt-function keys,
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you're out of luck - you can only do this for eleven of them
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if you also want to run an X server on the same machine.
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<p>The easiest way to disable a console is by turning it off. For
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example, if you had the full 12 terminal allocation mentioned
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above and you wanted to run X, you would change settings for
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virtual terminal 12 from:
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<verb>
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ttyvb "/usr/libexec/getty Pc" cons25 on secure
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</verb>
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<p>to:
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<verb>
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ttyvb "/usr/libexec/getty Pc" cons25 off secure
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</verb>
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<p>If your keyboard has only ten function keys, you would end up with:
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<verb>
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ttyv9 "/usr/libexec/getty Pc" cons25 off secure
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ttyva "/usr/libexec/getty Pc" cons25 off secure
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ttyvb "/usr/libexec/getty Pc" cons25 off secure
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</verb>
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<p>(You could also just delete these lines.)
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<p>Once you have edited <htmlurl
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url="http://www.freebsd.org/cgi/man.cgi?ttys" name="/etc/ttys">,
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the next step is to make sure that you have enough virtual terminal
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devices. The easiest way to do this is:
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<verb>
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# cd /dev
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# ./MAKEDEV vty12 # For 12 devices
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</verb>
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<p>Next, the easiest (and cleanest) way to activate the virtual
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consoles is to reboot. However, if you really don't want to
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reboot, you can just shut down the X Window system and execute (as
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<tt/root/):
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<verb>
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kill -HUP 1
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</verb>
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<p>It's imperative that you completely shut down X Window if it is
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running, before running this command. If you don't, your system
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will probably appear to hang/lock up after executing the kill
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command.
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<sect1>
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<heading>How do I access the virtual consoles from X?</heading>
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<p>If the console is currently displaying X Window, you can use
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Ctrl-Alt-F1, etc. to switch to a virtual console. Note, however,
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that once you've switched away from X Window to a virtual
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terminal, you may use only the Alt- function key to switch to another
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virtual terminal or back to X Window. You do not need to also press the
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Ctrl key. If you use the control key to switch back to X on some
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older releases, you can find your text console stuck in ``control-lock''
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mode. Tap the control key to wake it up again.
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<sect1>
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<heading>How do I start XDM on boot?</heading>
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<p>There are two schools of thought on how to start <htmlurl url=
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"http://www.freebsd.org/cgi/man.cgi?manpath=xfree86&query=xdm"
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name="xdm">. One school starts xdm from
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<htmlurl url="http://www.freebsd.org/cgi/man.cgi?ttys"
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name="/etc/ttys"> using the supplied example, while the other
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simply runs xdm from <htmlurl url="http://www.freebsd.org/cgi/man.cgi?rc"
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name="rc.local"> or
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from a <tt/X.sh/ script in <tt>/usr/local/etc/rc.d</tt>.
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Both are equally valid, and one may work in
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situations where the other doesn't. In both cases the result is the
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same: X will popup a graphical login: prompt.
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<p>The ttys method has the advantage
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of documenting which vty X will start on and passing the responsibility
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of restarting the X server on logout to init. The rc.local method
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makes it easy to kill xdm if there is a problem starting the X server.
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<p>If loaded from rc.local, <tt/xdm/ should be started without any
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arguments (i.e., as a daemon). xdm must start AFTER getty runs, or
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else getty and xdm will conflict, locking out the console. The best
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way around this is to have the script sleep 10 seconds or so then
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launch xdm.
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<p>A previous version of the FAQ said to add the
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<tt/vt/ you want X to use to the
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<tt>/usr/X11R6/lib/X11/xdm/Xservers</tt> file. This is not necessary:
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X will use the first free <tt/vt/ it finds.
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<sect1>
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<heading>When I run xconsole, I get ``Couldn't open console''.</heading>
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<p>If you start <htmlurl
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url="http://www.freebsd.org/cgi/man.cgi?manpath=xfree86&query=X"
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name="X"> with <htmlurl
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url="http://www.freebsd.org/cgi/man.cgi?manpath=xfree86&query=startx"
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name="startx">, the permissions on /dev/console will <tt /not/ get
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changed, resulting in things like <htmlurl
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url="http://www.freebsd.org/cgi/man.cgi?manpath=xfree86&query=xterm"
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name="xterm -C"> and <htmlurl url=
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"http://www.freebsd.org/cgi/man.cgi?manpath=xfree86&query=xconsole"
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name="xconsole"> not working.
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<p>This is because of the way console permissions are set by default.
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On a multi-user system, one doesn't necessarily want just any user
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to be able to write on the system console. For users who are logging
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directly onto a machine with a VTY, the
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<htmlurl url="http://www.freebsd.org/cgi/man.cgi?fbtab" name="fbtab">
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file exists to solve such problems.
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<p>In a nutshell, make sure an uncommented line of the form
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<verb>
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/dev/ttyv0 0600 /dev/console
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</verb>
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<p>is in <htmlurl url="http://www.freebsd.org/cgi/man.cgi?fbtab(5)"
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name="/etc/fbtab"> and it will ensure that whomever logs in on
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<tt>/dev/ttyv0</tt> will own the console.
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<sect1>
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<heading>My PS/2 mouse doesn't behave properly under X.</heading>
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<p>Your mouse and the mouse driver may have somewhat become out of
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synchronization.
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<p>In versions 2.2.5 and earlier, switching away from X to a
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virtual terminal and getting back to X again may make them
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re-synchronized. If the problem occurs often, you may add the
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following option in your kernel configuration file and recompile it.
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<verb>
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options PSM_CHECKSYNC
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</verb>
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<p>See the section on <ref id="make-kernel" name="building a kernel">
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if you've no experience with building kernels.
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<p>With this option, there should be less chance of synchronization
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problem between the mouse and the driver. If, however, you
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still see the problem, click any mouse button while holding
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the mouse still to re-synchronize the mouse and the driver.
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<p>Note that unfortunately this option may not work with all the
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systems and voids the ``tap'' feature of the ALPS GlidePoint
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device attached to the PS/2 mouse port.
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<p>In versions 2.2.6 and later, synchronization check is done
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in a slightly better way and is standard in the PS/2 mouse driver.
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It should even work with GlidePoint. (As the check code has become
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a standard feature, PSM_CHECKSYNC option is not available in these
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versions.) However, in rare case the driver may erroneously report
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synchronization problem and you may see the kernel message:
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<verb>
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psmintr: out of sync (xxxx != yyyy)
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</verb>
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and find your mouse doesn't seem to work properly.
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<p>If this happens, disable the synchronization check code by
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setting the driver flags for the PS/2 mouse driver to 0x100.
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Enter <em>UserConfig</em> by giving the ``<tt>-c</tt>'' option
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at the boot prompt:
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<verb>
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boot: -c
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</verb>
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Then, in the <em>UserConfig</em> command line, type:
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<verb>
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UserConfig> flags psm0 0x100
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UserConfig> quit
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</verb>
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<sect1>
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<heading>My PS/2 mouse from MouseSystems doesn't seem to work.</heading>
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<p>There have been some reports that certain model of PS/2 mouse
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from MouseSystems works only if it is put into the ``high resolution''
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mode. Otherwise, the mouse cursor may jump to the upper-left
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corner of the screen every so often.
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<p>Unfortunately there is no workaround for versions 2.0.X and
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2.1.X. In versions 2.2 through 2.2.5, apply the following patch
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to <tt>/sys/i386/isa/psm.c</tt> and rebuild the kernel. See the
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section on <ref id="make-kernel" name="building a kernel">
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if you've no experience with building kernels.
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<verb>
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diff -u psm.c.orig psm.c
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@@ -766,6 +766,8 @@
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if (verbose >= 2)
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log(LOG_DEBUG, "psm%d: SET_DEFAULTS return code:%04x\n",
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unit, i);
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+ set_mouse_resolution(sc->kbdc, PSMD_RES_HIGH);
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+
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#if 0
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set_mouse_scaling(sc->kbdc); /* 1:1 scaling */
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set_mouse_mode(sc->kbdc); /* stream mode */
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</verb>
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<p>In versions 2.2.6 or later, specify the flags 0x04 to the PS/2
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mouse driver to put the mouse into the high resolution mode.
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Enter <em>UserConfig</em> by giving the ``<tt>-c</tt>'' option
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at the boot prompt:
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<verb>
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boot: -c
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</verb>
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Then, in the <em>UserConfig</em> command line, type:
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<verb>
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UserConfig> flags psm0 0x04
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UserConfig> quit
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</verb>
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<p>See the previous section for another possible cause of mouse
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problems.
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<sect1>
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<heading>When building an X app, <tt/imake/ can't find <tt/Imake.tmpl/. Where is it?
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</heading>
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<p>Imake.tmpl is part of the Imake package, a standard X application building tool.
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Imake.tmpl, as well as several header files that are required to build X apps,
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is contained in the X prog distribution. You can install this from sysinstall or
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manually from the X distribution files. </p>
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</sect1>
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<sect1>
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<heading>How do I reverse the mouse buttons?
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</heading>
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<p>Run the command <tt/ xmodmap -e "pointer = 3 2 1"/ from your .xinitrc or .xsession.
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</p>
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</sect1>
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</sect>
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