Hola francisco,
 ya he conseguido hacer *funcionar el XFree* (te paso los archivos
XF86Config y X.err) me funciona en *todas las resoluciones* (cuatro,
creo, no recuerdo estoy escribiendo de mem�ria), peerooo,
peeeerroooooroooo!!!!, esto me va a costar de explicar pu�s es muy
dif�cil sin que veas mi pantalla, aunque todas las resoluciones me
funcionen (a�n no he probado m�s de 8bpp) veo la pantalla al completo
del monitor, cosa buena, pero la veo m�s peque�a de lo que tendr�a.

Me explico, si puedo, es como si el XFree funcionase a una resoluci�n
diferente a la pantalla (ya s� que suena raro pero es que no s� como
decirlo). Dicho de otra forma una cosa que ha 640x480 (en un monitor de
15") ocupa unos 5 cm de altura, por decir algo, a mi en 640x480, con
fvwm95, me ocupa 2,5cm.

Haber si lo has entendido:

 - El la pantalla la tengo centrada correctamente, no me sale ovalada,
en fin, es perfecta, a 8bpp, no he probado a m�s.
 - El problema es que me salen las cosas en pantalla m�s peque�as de lo
que deben.

En fin, esto es todo, espero que te sirva de algo pu�s son todos mis
avances. Cuando puedas, explicame tus avances a ver que tal te ha ido
(espero que mejor que a mi :)).

Un cordial saludo,
  J. Parera

P.D.
 Perdona por ese rollo tan mal explicado pero es que no tenia ni remota
idea de como expresar esta situaci�n. Espero haberme hecho entender.
XFree86 Version 3.3 / X Window System
(protocol Version 11, revision 0, vendor release 6300)
Release Date: Jun  2 1997
        If the server is older than 6-12 months, or if your card is newer
        than the above date, look for a newer version before reporting
        problems.  (see http://www.XFree86.Org/FAQ)
Operating System: Linux 2.0.21 i486 [ELF] 
Configured drivers:
  SVGA: server for SVGA graphics adaptors (Patchlevel 0):
      NV1, STG2000, ET4000, ET4000W32, ET4000W32i, ET4000W32i_rev_b,
      ET4000W32i_rev_c, ET4000W32p, ET4000W32p_rev_a, ET4000W32p_rev_b,
      ET4000W32p_rev_c, ET4000W32p_rev_d, ET6000, et3000, pvga1, wd90c00,
      wd90c10, wd90c30, wd90c24, wd90c31, wd90c33, gvga, ati, sis86c201,
      sis86c202, sis86c205, tvga8200lx, tvga8800cs, tvga8900b, tvga8900c,
      tvga8900cl, tvga8900d, tvga9000, tvga9000i, tvga9100b, tvga9200cxr,
      tgui9320lcd, tgui9400cxi, tgui9420, tgui9420dgi, tgui9430dgi,
      tgui9440agi, tgui96xx, cyber938x, clgd5420, clgd5422, clgd5424,
      clgd5426, clgd5428, clgd5429, clgd5430, clgd5434, clgd5436, clgd5446,
      clgd5480, clgd5462, clgd5464, clgd5465, clgd6205, clgd6215, clgd6225,
      clgd6235, clgd7541, clgd7542, clgd7543, clgd7548, clgd7555, ncr77c22,
      ncr77c22e, cpq_avga, mga2064w, mga1064sg, oti067, oti077, oti087,
      oti037c, al2101, ali2228, ali2301, ali2302, ali2308, ali2401, cl6410,
      cl6412, cl6420, cl6440, video7, ct65520, ct65525, ct65530, ct65535,
      ct65540, ct65545, ct65546, ct65548, ct65550, ct65554, ct64200,
      ct64300, ark1000vl, ark1000pv, ark2000pv, ark2000mt, mx, realtek,
      AP6422, AT24, s3_virge, generic
(using VT number 7)

XF86Config: /etc/X11/XF86Config
(**) stands for supplied, (--) stands for probed/default values
(**) XKB: disabled
(**) XKB: keymap: "xfree86(us)" (overrides other XKB settings)
(**) Mouse: type: PS/2, device: /dev/mouse, baudrate: 1200,
       3 button emulation (timeout: 50ms)
(**) SVGA: Graphics device ID: "Generic SVGA"
(**) SVGA: Monitor ID: "My Monitor"
(--) SVGA: Mode "320x200" needs vert refresh rate of 139.87 Hz. Deleted.
(--) SVGA: Mode "320x240" needs vert refresh rate of 120.11 Hz. Deleted.
(**) SVGA: Memory Base Address: 20000000
(**) FontPath set to 
"/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/:unscaled,/usr/X11R6/lib/X11/fonts/100dpi/:unscaled,/usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/"
(--) SVGA: PCI: SiS SG86C205 rev 211, Memory @ 0x20000000, 0x20400000, I/O @ 
0x1200
(--) SVGA: using programmable clocks.
(**) SVGA: chipset:  sis86c205
(--) SVGA: videoram: 2048k
(**) SVGA: Option "noaccel"
(**) SVGA: Option "no_bitblt"
(**) SVGA: Option "no_imageblt"
(**) SVGA: Using 8 bpp, Depth 8, Color weight: 666
(--) SVGA: Maximum allowed dot-clock: 135.000 MHz
(**) SVGA: Mode "640x480": mode clock =  25.175
(**) SVGA: Mode "800x600": mode clock =  50.000
(**) SVGA: Mode "1024x768": mode clock =  65.000
(--) SVGA: There is no mode definition named "320x240"
(--) SVGA: Removing mode "320x240" from list of valid modes.
(**) SVGA: Mode "640x400": mode clock =  25.175
(--) SVGA: Virtual resolution set to 1024x768
(--) SVGA: Generic SpeedUps selected (Flags=0x30)
(**) SVGA: base address is set at 0x20000000.
(--) SVGA: Using Linear Frame Buffer at 0x020000000, Size 2MB
(**) SVGA: SIS: Bit Block Transfert disabled
(**) SVGA: Using hardware cursor
(**) SVGA: SIS: Not using mono expand system-to-video BitBLT.
# File generated by xf86config.

#
# Copyright (c) 1995 by The XFree86 Project, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
# THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
# OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
# 
# Except as contained in this notice, the name of the XFree86 Project shall
# not be used in advertising or otherwise to promote the sale, use or other
# dealings in this Software without prior written authorization from the
# XFree86 Project.
#

# **********************************************************************
# Refer to the XF86Config(4/5) man page for details about the format of 
# this file.
# **********************************************************************

# **********************************************************************
# Files section.  This allows default font and rgb paths to be set
# **********************************************************************

Section "Files"

# The location of the RGB database.  Note, this is the name of the
# file minus the extension (like ".txt" or ".db").  There is normally
# no need to change the default.

    RgbPath     "/usr/X11R6/lib/X11/rgb"

# Multiple FontPath entries are allowed (which are concatenated together),
# as well as specifying multiple comma-separated entries in one FontPath
# command (or a combination of both methods)
# 
# If you don't have a floating point coprocessor and emacs, Mosaic or other
# programs take long to start up, try moving the Type1 and Speedo directory
# to the end of this list (or comment them out).
# 

    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"

# For OSs that support Dynamically loaded modules, ModulePath can be
# used to set a search path for the modules.  This is currently supported
# for Linux ELF, FreeBSD 2.x and NetBSD 1.x.  The default path is shown
# here.

#    ModulePath "/usr/X11R6/lib/modules"

EndSection

# **********************************************************************
# Module section -- this is an optional section which is used to specify
# which dynamically loadable modules to load.  Dynamically loadable
# modules are currently supported only for Linux ELF, FreeBSD 2.x
# and NetBSD 1.x.  Currently, dynamically loadable modules are used
# only for some extended input (XInput) device drivers.
# **********************************************************************
#
# Section "Module"
#
# This loads the module for the Joystick driver
#
# Load "xf86Jstk.so"
# 
# EndSection

# **********************************************************************
# Server flags section.
# **********************************************************************

Section "ServerFlags"

# Uncomment this to cause a core dump at the spot where a signal is 
# received.  This may leave the console in an unusable state, but may
# provide a better stack trace in the core dump to aid in debugging

#    NoTrapSignals

# Uncomment this to disable the <Crtl><Alt><BS> server abort sequence
# This allows clients to receive this key event.

#    DontZap

# Uncomment this to disable the <Crtl><Alt><KP_+>/<KP_-> mode switching
# sequences.  This allows clients to receive these key events.

#    DontZoom

# Uncomment this to disable tuning with the xvidtune client. With
# it the client can still run and fetch card and monitor attributes,
# but it will not be allowed to change them. If it tries it will
# receive a protocol error.

#       DisableVidModeExtension

# Uncomment this to enable the use of a non-local xvidtune client. 

#       AllowNonLocalXvidtune

# Uncomment this to disable dynamically modifying the input device
# (mouse and keyboard) settings. 

#       DisableModInDev

# Uncomment this to enable the use of a non-local client to
# change the keyboard or mouse settings (currently only xset).

#       AllowNonLocalModInDev

EndSection

# **********************************************************************
# Input devices
# **********************************************************************

# **********************************************************************
# Keyboard section
# **********************************************************************

Section "Keyboard"

    Protocol    "Standard"

# when using XQUEUE, comment out the above line, and uncomment the
# following line

#    Protocol   "Xqueue"

    AutoRepeat  500 5
# Let the server do the NumLock processing.  This should only be required
# when using pre-R6 clients
#    ServerNumLock

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
#    Xleds      1 2 3

# To set the LeftAlt to Meta, RightAlt key to ModeShift, 
# RightCtl key to Compose, and ScrollLock key to ModeLock:

    LeftAlt     Meta
    RightAlt    Meta
#    RightCtl    Control
#    ScrollLock  Compose

# To disable the XKEYBOARD extension, uncomment XkbDisable.

    XkbDisable

# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults).  For example, for a non-U.S.
# keyboard, you will probably want to use:
#    XkbModel    "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
#    XkbModel    "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
#    XkbLayout   "de"
# or:
#    XkbLayout   "es"
#    XkbVariant  "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
#    XkbOptions  "ctrl:swapcaps"

# These are the default XKB settings for XFree86
#    XkbRules    "xfree86"
#    XkbModel    "pc101"
#    XkbLayout   "us"
#    XkbVariant  ""
#    XkbOptions  ""

    XkbKeymap   "xfree86(us)"


EndSection


# **********************************************************************
# Pointer section
# **********************************************************************

Section "Pointer"
    Protocol    "PS/2"
    Device      "/dev/mouse"

# When using XQUEUE, comment out the above two lines, and uncomment
# the following line.

#    Protocol   "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice

#    BaudRate   9600
#    SampleRate 150

# Emulate3Buttons is an option for 2-button Microsoft mice
# Emulate3Timeout is the timeout in milliseconds (default is 50ms)

    Emulate3Buttons
    Emulate3Timeout    50

# ChordMiddle is an option for some 3-button Logitech mice

#    ChordMiddle

EndSection


# **********************************************************************
# Xinput section -- this is optional and is required only if you
# are using extended input devices.  This is for example only.  Refer
# to the XF86Config man page for a description of the options.
# **********************************************************************
#
# Section "Xinput" 
#    SubSection "WacomStylus"
#        Port "/dev/ttyS1"
#        DeviceName "Wacom"
#    EndSubSection
#    SubSection "WacomCursor"
#        Port "/dev/ttyS1"
#    EndSubSection
#    SubSection "WacomEraser"
#        Port "/dev/ttyS1"
#    EndSubSection
#
#    SubSection "Elographics"
#        Port "/dev/ttyS1"
#        DeviceName "Elo"
#        MinimumXPosition 300
#        MaximumXPosition 3500
#        MinimumYPosition 300
#        MaximumYPosition 3500
#        Screen 0
#        UntouchDelay 10
#        ReportDelay 10
#    EndSubSection
#
#    SubSection "Joystick"
#        Port "/dev/joy0"
#        DeviceName "Joystick"
#        TimeOut 10
#        MinimumXPosition 100
#        MaximumXPosition 1300
#        MinimumYPosition 100
#        MaximumYPosition 1100
#        # CenterX 700
#        # CenterY 600
#        Delta 20
#    EndSubSection
#
# The Mouse Subsection contains the same type of entries as the
# standard Pointer Section (see above), with the addition of the
# DeviceName entry.
#
#    SubSection "Mouse" 
#        Port "/dev/mouse2"
#        DeviceName "Second Mouse"
#        Protocol "Logitech"
#    EndSubSection
# EndSection

# **********************************************************************
# Monitor section
# **********************************************************************

# Any number of monitor sections may be present

Section "Monitor"

    Identifier  "My Monitor"
    VendorName  "Unknown"
    ModelName   "Unknown"

# HorizSync is in kHz unless units are specified.
# HorizSync may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.

    HorizSync   31-58

# VertRefresh is in Hz unless units are specified.
# VertRefresh may be a comma separated list of discrete values, or a
# comma separated list of ranges of values.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY.  REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

    VertRefresh 50-110

# This is a set of standard mode timings. Modes that are out of monitor spec
# are automatically deleted by the server (provided the HorizSync and
# VertRefresh lines are correct), so there's no immediate need to
# delete mode timings (unless particular mode timings don't work on your
# monitor). With these modes, the best standard mode that your monitor
# and video card can support for a given resolution is automatically
# used.

# 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio
   Modeline "320x200"     12.588 320  344  392  400   200  208  209  225
# 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio
   Modeline "320x240"     12.588 320  348  396  400   240  245  246  262
# 640x400 @ 70 Hz, 31.5 kHz hsync
   Modeline "640x400"     25.175 640  676  772  788   400  417  419  458
# 640x480 @ 60 Hz, 31.5 kHz hsync
   Modeline "640x480"     25.175 640  676  772  780   480  491  493  521
# 800x600 @ 72 Hz, 48.0 kHz hsync
   Modeline  "800x600"    50.00 800 856 976 1040 600 633 639 650 +hsync +vsync
# 1024x768 @ 60 Hz, 48.4 kHz hsync
   Modeline "1024x768"    65    1024 1056 1200 1340   768  775  781  814 -hsync

EndSection

# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
    Identifier  "Generic SVGA"
    VendorName  "Unknown"
    BoardName   "Unknown"
    Chipset     "sis86c205"
    MemBase     0x020000000
   #Option "nolinear"
    Option "noaccel"
    Option "no_bitblt"
    Option "no_imageblt"

# La opciOn no_bitblt tengo que ponerla para que funcione el server
# o en vez de esta la no_imageblt, con el resto no noto la diferencia

EndSection

# **********************************************************************
# Screen sections
# **********************************************************************

Section "Screen"
    Driver      "SVGA"
    Device      "Generic SVGA"
    Monitor     "My Monitor"
  # DefaultColorDepth  16
    BlankTime   0
    SuspendTime 0
    OffTime     0
    Subsection "Display"
        Depth       8
        Modes       "640x480" "800x600" "1024x768" "320x240" "640x400"
        ViewPort    0 0
      # Virtual     1280 768
    EndSubsection
    SubSection "Display"
        Depth       16
        Modes       "640x480" "800x600" "1024x768" "320x240" "640x400"
        ViewPort    0 0
      # Virtual     1280 768
    EndSubsection
    SubSection "Display"
        Depth       24
        Modes       "640x480" "800x600" "1024x768" "320x240" "640x400"
    EndSubsection

EndSection

Responder a