README for XFree86 4.4.0 on LynxOS
: Running XFree86
Previous: Installing the Binaries
Next: Compiling the XFree86 Distribution
3. Running XFree86
This section describes the changes to the LynxOS environment
which may be necessary to successfully run XFree86.
3.1. System tuning
3.1.1. Tunable parameters
To reasonably run XFree86 you may have to adjust a few system parameters.
On LynxOS 2.5.x and 3.0.x include a line
#define X_WINDOWS
in /sys/lynx.os/uparam.h.
3.1.2. Adjustment for "nv" driver for NVidia graphics cards
If you're using the "nv" driver (Riva 128, nVidia TNT, TNT2, GeForce),
you will have to increase the value of the SMEMS parameter in
/sys/lynx.os/uparam.h from 10 to 20.
3.1.3. Increase number of ptys
You should also increase the number of ptys to be able run a couple
more xterms. You may replace /sys/cfg/pty.cfg with
/usr/X11R6/lib/X11/etc/pty.cfg.
3.1.4. MTRR device driver
If you're using an Intel PentiumPRO or Pentium II (or higher) class
CPU you might want to install the MTRR device driver. This driver
enables the XFree86 X server to manipulate the CPU memory type range
registers which may improve performance on certain systems.
To install the driver (on LynxOS x86 2.5.0 systems an higher) follow
these steps:
# cd /
# bash /usr/X11R6/lib/X11/etc/MTRR-Lynx.shar
# cd sys/drivers/mtrr
# make install
Then add a line
I:../drivers/mtrr/mtrr.cfg
to /sys/lynx.os/CONFIG.TBL and rebuild the kernel (see next section).
3.1.5. Kernel build
If you plan to use a PS/2 mouse to the following sections
before rebuilding the kernel, if not, you should rebuild the kernel
now:
# cd /sys/lynx.os
# make install
# reboot -N
3.2. Mouse support in XFree86
XFree86 includes support for PnP mice (see also Mouse Support in XFree86). The current LynxOS
TTY device driver doesn't allow the necessary manipulation of the RTS
line and therefore the support for PnP mice has been disabled for
LynxOS.
3.3. PS/2 mouse drivers
LynxOS x86 comes with a PS/2 mouse driver. If it is not currently
installed on your system install it with
/usr/bin/Install.ps2mouse. Older versions of this driver
contained code to translate the PS/2 mouse protocol to the format of a
serial mouse, thus you'll have to specify "Microsoft" as the mouse
protocol format. The mouse driver contained in LynxOS x86 patchlevel
015 (and higher) does no longer perform the protocol translation an
therefore can be defined as "PS/2" protocol format.
3.4. ATC console driver and VT switching
Currently there is no support for virtual terminal switching
once the server has started. Support for this feature may be added in
future versions (it requires a patch to the vt100 LynxOS terminal
driver).
You will need a free console which the X server will use for keyboard
input. You must disable login on at least one of the four virtual
terminals in /etc/ttys, e.g. /dev/atc3:
change
/dev/atc3:1:default:vt100at:/bin/login
to
/dev/atc3:0:default:vt100at:/bin/login
^
3.5. X Server debug diagnostics output and other VT peculiarities
Output made by the XFree86 X on its stdout or stderr will be lost
after the server switches to graphics mode. The XFree86 4.4.0
server stores its output in /usr/adm/XFree86.n.log (where
n is the screen number).
When the X server is running output made to other consoles will be
lost. After server shutdown the screen contents of other consoles may
be inconsistent with what one would expect (i.e. random).
README for XFree86 4.4.0 on LynxOS
: Running XFree86
Previous: Installing the Binaries
Next: Compiling the XFree86 Distribution
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