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iandunn 01-04-2006 08:36 PM

Changing resolution
 
I'm trying to get back into Linux after a few years away. I've got Slack 10.2 installed and I used xorgconfig to setup X. Everything's working fine, but I can't change the resolution (it's running @ 640x480, yuck!). ctrl alt +/- doesn't do anything. I've got 1024x768 and 800x600 as the defined resolutions in my xorg.conf file, so I'm not sure why it isn't using either of those. Here's the entire file:

# File generated by xorgconfig.

#
# Copyright 2004 The X.Org Foundation
#
# 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 X.Org Foundation 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 X.Org Foundation 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 X.Org Foundation.
#

# **********************************************************************
# Refer to the xorg.conf(5x) man page for details about the format of
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this section is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
#
Section "Module"

# This loads the DBE extension module.

Load "dbe" # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection

# This loads the font modules
Load "type1"
# Load "speedo"
Load "freetype"
# Load "xtt"

# This loads the GLX module
Load "glx"
# This loads the DRI module
# Load "dri"

EndSection

# **********************************************************************
# 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)
#
#

FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/TTF/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/CID/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/local/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic/"

# The module search path. The default path is shown here.

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

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

# Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><Fn> VT switch sequence
# (where n is 1 through 12). This allows clients to receive these key
# events.

# Option "DontVTSwitch"

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

# Option "DontZap"

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

# Option "Dont Zoom"

# 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.

# Option "DisableVidModeExtension"

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

# Option "AllowNonLocalXvidtune"

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

# Option "DisableModInDev"

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

# Option "AllowNonLocalModInDev"

EndSection

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

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

Identifier "Keyboard1"
Driver "kbd"

# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

# Option "Protocol" "Xqueue"

Option "AutoRepeat" "500 30"

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

# Option "LeftAlt" "Meta"
# Option "RightAlt" "ModeShift"

# 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:
# Option "XkbModel" "pc105"
# If you have a US Microsoft Natural keyboard, you can use:
# Option "XkbModel" "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# Option "XkbLayout" "de"
# or:
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
# Option "XkbOptions" "ctrl:swapcaps"

# These are the default XKB settings for Xorg
# Option "XkbRules" "xorg"
# Option "XkbModel" "pc105"
# Option "XkbLayout" "us"
# Option "XkbVariant" ""
# Option "XkbOptions" ""

# Option "XkbDisable"

Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"

EndSection


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "Auto"
Option "Device" "/dev/mouse"

# Mouse-speed setting for PS/2 mouse.

# Option "Resolution" "256"

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

# Option "Protocol" "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

# Option "BaudRate" "9600"
# Option "SampleRate" "150"

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

# Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"

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

# Option "ChordMiddle"

EndSection


# **********************************************************************
# Other input device sections
# this is optional and is required only if you
# are using extended input devices. This is for example only. Refer
# to the xorg.conf man page for a description of the options.
# **********************************************************************
#
# Section "InputDevice"
# Identifier "Mouse2"
# Driver "mouse"
# Option "Protocol" "MouseMan"
# Option "Device" "/dev/mouse2"
# EndSection
#
# Section "InputDevice"
# Identifier "spaceball"
# Driver "magellan"
# Option "Device" "/dev/cua0"
# EndSection
#
# Section "InputDevice"
# Identifier "spaceball2"
# Driver "spaceorb"
# Option "Device" "/dev/cua0"
# EndSection
#
# Section "InputDevice"
# Identifier "touchscreen0"
# Driver "microtouch"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "1412"
# Option "MaxX" "15184"
# Option "MinY" "15372"
# Option "MaxY" "1230"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection
#
# Section "InputDevice"
# Identifier "touchscreen1"
# Driver "elo2300"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "231"
# Option "MaxX" "3868"
# Option "MinY" "3858"
# Option "MaxY" "272"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonThreshold" "17"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection

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

# Any number of monitor sections may be present

Section "Monitor"

Identifier "My Monitor"

# 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.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

HorizSync 31.5, 35.15, 35.5

# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies

# 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 50-90

EndSection


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

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
Identifier "Standard VGA"
VendorName "Unknown"
BoardName "Unknown"

# The chipset line is optional in most cases. It can be used to override
# the driver's chipset detection, and should not normally be specified.

# Chipset "generic"

# The Driver line must be present. When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module. Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

Driver "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for. When this line isn't present, a device
# section can only match up with the primary video device. For PCI
# devices a line like the following could be used. This line should not
# normally be included unless there is more than one video device
# intalled.

# BusID "PCI:0:10:0"

# VideoRam 256

# Clocks 25.2 28.3

EndSection

# Device configured by xorgconfig:

Section "Device"
Identifier "** Intel i810 (generic) [i810]"
Driver "i810"
#VideoRam 65536
# Insert Clocks lines here if appropriate
EndSection


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

# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
Identifier "Screen 1"
Device "** Intel i810 (generic) [i810]"
Monitor "My Monitor"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "1024x768" "800x600"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "800x600"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768" "800x600"
ViewPort 0 0
EndSubsection
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present. Each describes
# the way multiple screens are organised. A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option. In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
Identifier "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens. The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen. In this example, screen 2 is located to the
# right of screen 1.

Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used. Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"

EndSection

# Section "DRI"
# Mode 0666
# EndSection

interndan 01-04-2006 08:49 PM

Not sure but I think the problem is in your device setting. You have standard VGA which I think will make it default to 640x480. Try running xorgconfig and see if your video card is listed.

iandunn 01-04-2006 08:59 PM

The device section had two different devices defined, the VGA one you mentioned and one for my card (using the Intel i810 driver). I removed the VGA lines and restarted X, but everything is the same. Here's the new section:

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

# Any number of graphics device sections may be present

# Device configured by xorgconfig:

Section "Device"
Identifier "** Intel i810 (generic) [i810]"
Driver "i810"
#VideoRam 65536
# Insert Clocks lines here if appropriate
EndSection

cwwilson721 01-04-2006 09:07 PM

Here's my xorg.conf for the i810

Section "Device"
Identifier "Intel 810"
Driver "i810"
VideoRam 32768
Option "XVideo" "On"
Option "MonitorLayout" "LFP,CRT"
Option "DevicePresence" "On"
# Insert Clocks lines here if appropriate
EndSection

And:
Section "Screen"
Identifier "Screen 1"
Device "Intel 810"
Monitor "My Monitor"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "1024x768" "800x600"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768" "800x600"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768" "800x600"
ViewPort 0 0
EndSubsection

With the monitor layout section, notice "LFP,CRT"
I use a laptop, so first device is my flat panel. Change yours to "CRT,CRT"

Also, notice the uncommented lines in front of "videoram"

iandunn 01-04-2006 09:25 PM

I changed to that but it's still acting the same. I can use KDE to change the resolution, but the only options it gives me are 800x600 and 640x480

cwwilson721 01-04-2006 09:28 PM

Then look at your monitor settings. Try a range, if you can, instead of discreet values

interndan 01-05-2006 08:14 AM

That's also correct. A google search will usually turn up the horizontal sync and vertical refresh rates for your monitor.

Woodsman 01-05-2006 09:22 PM

Any chance you are using an LCD monitor? If so, then consider adding the DisplaySize option to the monitor section. Here is my monitor section:

Section "Monitor"
Identifier "Samsung 712N"
HorizSync 30-81
VertRefresh 56-75
DisplaySize 337.92 270.336
Option "DPMS"
EndSection

Here is my video card section:

Section "Device"
Identifier "Creative Labs 3D Blaster Banshee (tdfx)"
Driver "tdfx"
VideoRam 16384
Option "DPMS"
EndSection

My Screen section:

Section "Screen"
Identifier "Screen 1"
Device "Creative Labs 3D Blaster Banshee (tdfx)"
Monitor "Samsung 712N"
DefaultDepth 16
Subsection "Display"
Depth 8
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 15
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
Subsection "Display"
Depth 32
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection
EndSection

I hope this helps.

fender 01-05-2006 10:27 PM

As mentioned before - be sure to state the correct horizontal and vertical frequencies. If you want, remove the resolutions you don't intend on using, and everything should work fine.

iandunn 01-09-2006 08:09 PM

I am using an LCD (it's a laptop). I added the DisplaySize option but it didn't change anything. I'm not sure what my exact horizonal and vertical syncs are (it doesn't give a model or anything I can use to search for them). When I'm in Windows the display properties say it can do 1024x768 @ 60HZs.

Here's my current xorg.conf:


# File generated by xorgconfig.

#
# Copyright 2004 The X.Org Foundation
#
# 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 X.Org Foundation 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 X.Org Foundation 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 X.Org Foundation.
#

# **********************************************************************
# Refer to the xorg.conf(5x) man page for details about the format of
# this file.
# **********************************************************************

# **********************************************************************
# Module section -- this section is used to specify
# which dynamically loadable modules to load.
# **********************************************************************
#
Section "Module"

# This loads the DBE extension module.

Load "dbe" # Double buffer extension

# This loads the miscellaneous extensions module, and disables
# initialisation of the XFree86-DGA extension within that module.
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection

# This loads the font modules
Load "type1"
# Load "speedo"
Load "freetype"
# Load "xtt"

# This loads the GLX module
Load "glx"
# This loads the DRI module
# Load "dri"

EndSection

# **********************************************************************
# 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)
#
#

FontPath "/usr/X11R6/lib/X11/fonts/misc/"
FontPath "/usr/X11R6/lib/X11/fonts/TTF/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
FontPath "/usr/X11R6/lib/X11/fonts/CID/"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi/"
FontPath "/usr/X11R6/lib/X11/fonts/local/"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic/"

# The module search path. The default path is shown here.

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

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

# Option "NoTrapSignals"

# Uncomment this to disable the <Crtl><Alt><Fn> VT switch sequence
# (where n is 1 through 12). This allows clients to receive these key
# events.

# Option "DontVTSwitch"

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

# Option "DontZap"

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

# Option "Dont Zoom"

# 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.

# Option "DisableVidModeExtension"

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

# Option "AllowNonLocalXvidtune"

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

# Option "DisableModInDev"

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

# Option "AllowNonLocalModInDev"

EndSection

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

# **********************************************************************
# Core keyboard's InputDevice section
# **********************************************************************

Section "InputDevice"

Identifier "Keyboard1"
Driver "kbd"

# For most OSs the protocol can be omitted (it defaults to "Standard").
# When using XQUEUE (only for SVR3 and SVR4, but not Solaris),
# uncomment the following line.

# Option "Protocol" "Xqueue"

Option "AutoRepeat" "500 30"

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

# Option "LeftAlt" "Meta"
# Option "RightAlt" "ModeShift"

# 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:
# Option "XkbModel" "pc105"
# If you have a US Microsoft Natural keyboard, you can use:
# Option "XkbModel" "microsoft"
#
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# Option "XkbLayout" "de"
# or:
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
#
# If you'd like to switch the positions of your capslock and
# control keys, use:
# Option "XkbOptions" "ctrl:swapcaps"

# These are the default XKB settings for Xorg
# Option "XkbRules" "xorg"
# Option "XkbModel" "pc105"
# Option "XkbLayout" "us"
# Option "XkbVariant" ""
# Option "XkbOptions" ""

# Option "XkbDisable"

Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"

EndSection


# **********************************************************************
# Core Pointer's InputDevice section
# **********************************************************************

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "Auto"
Option "Device" "/dev/mouse"

# Mouse-speed setting for PS/2 mouse.

# Option "Resolution" "256"

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

# Option "Protocol" "Xqueue"

# Baudrate and SampleRate are only for some Logitech mice. In
# almost every case these lines should be omitted.

# Option "BaudRate" "9600"
# Option "SampleRate" "150"

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

# Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"

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

# Option "ChordMiddle"

EndSection


# **********************************************************************
# Other input device sections
# this is optional and is required only if you
# are using extended input devices. This is for example only. Refer
# to the xorg.conf man page for a description of the options.
# **********************************************************************
#
# Section "InputDevice"
# Identifier "Mouse2"
# Driver "mouse"
# Option "Protocol" "MouseMan"
# Option "Device" "/dev/mouse2"
# EndSection
#
# Section "InputDevice"
# Identifier "spaceball"
# Driver "magellan"
# Option "Device" "/dev/cua0"
# EndSection
#
# Section "InputDevice"
# Identifier "spaceball2"
# Driver "spaceorb"
# Option "Device" "/dev/cua0"
# EndSection
#
# Section "InputDevice"
# Identifier "touchscreen0"
# Driver "microtouch"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "1412"
# Option "MaxX" "15184"
# Option "MinY" "15372"
# Option "MaxY" "1230"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection
#
# Section "InputDevice"
# Identifier "touchscreen1"
# Driver "elo2300"
# Option "Device" "/dev/ttyS0"
# Option "MinX" "231"
# Option "MaxX" "3868"
# Option "MinY" "3858"
# Option "MaxY" "272"
# Option "ScreenNumber" "0"
# Option "ReportingMode" "Scaled"
# Option "ButtonThreshold" "17"
# Option "ButtonNumber" "1"
# Option "SendCoreEvents"
# EndSection

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

# Any number of monitor sections may be present

Section "Monitor"

Identifier "LCD"

# 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.
# NOTE: THE VALUES HERE ARE EXAMPLES ONLY. REFER TO YOUR MONITOR'S
# USER MANUAL FOR THE CORRECT NUMBERS.

HorizSync 31.5 - 48.5

# HorizSync 30-64 # multisync
# HorizSync 31.5, 35.2 # multiple fixed sync frequencies
# HorizSync 15-25, 30-50 # multiple ranges of sync frequencies

# 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 50-90
DisplaySize 285.75 215.9

EndSection


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

# Any number of graphics device sections may be present

# Standard VGA Device:

#Section "Device"
# Identifier "Standard VGA"
# VendorName "Unknown"
# BoardName "Unknown"

# The chipset line is optional in most cases. It can be used to override
# the driver's chipset detection, and should not normally be specified.

# Chipset "generic"

# The Driver line must be present. When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module. Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

# Driver "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for. When this line isn't present, a device
# section can only match up with the primary video device. For PCI
# devices a line like the following could be used. This line should not
# normally be included unless there is more than one video device
# intalled.

# BusID "PCI:0:10:0"

# VideoRam 256

# Clocks 25.2 28.3

#EndSection

# Device configured by xorgconfig:

Section "Device"
Identifier "Intel 82852/82855"
Driver "i810"
VideoRam 65536
EndSection


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

# Any number of screen sections may be present. Each describes
# the configuration of a single screen. A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
Identifier "Screen 1"
Device "Intel 82852/82855"
Monitor "LCD"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "1024x768"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1024x768"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1024x768"
ViewPort 0 0
EndSubsection
EndSection

# **********************************************************************
# ServerLayout sections.
# **********************************************************************

# Any number of ServerLayout sections may be present. Each describes
# the way multiple screens are organised. A specific ServerLayout
# section may be specified from the X server command line with the
# "-layout" option. In the absence of this, the first section is used.
# When now ServerLayout section is present, the first Screen section
# is used alone.

Section "ServerLayout"

# The Identifier line must be present
Identifier "Simple Layout"

# Each Screen line specifies a Screen section name, and optionally
# the relative position of other screens. The four names after
# primary screen name are the screens to the top, bottom, left and right
# of the primary screen. In this example, screen 2 is located to the
# right of screen 1.

Screen "Screen 1"

# Each InputDevice line specifies an InputDevice section name and
# optionally some options to specify the way the device is to be
# used. Those options include "CorePointer", "CoreKeyboard" and
# "SendCoreEvents".

InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"

EndSection

# Section "DRI"
# Mode 0666
# EndSection

Woodsman 01-10-2006 05:34 PM

Some ideas:

Temporarily comment out the load "glx" line.

Next, just below the load "dri" line, add the following:

# Allow DDC probing of monitor
Load "ddc"

In your Monitor section you currently have HorizSync 31.5 - 48.5. Try widening that to HorizSync 30 - 80. Leave the vertical refresh as is.

Save and exit.

Hopefully, X will now see the DDC option and probe the monitor for a horizontal and vertical range. If you have a newer monitor you should be okay.

If that works then re-enable the load "glx" option.

If that works then enable the DRI section at the bottom of the file.

If your monitor does not support DDC probing, then you should see some related warning messages in /var/log/Xorg.0.log.

FWIW, unlike CRT monitors where 60 Hz often hurts the eyes, LCD monitors often run at 60 Hz. Because an LCD does not refresh the screen in a true rasterization like a CRT, the human eye will not notice any flicker on an LCD at 60 Hz. I run my LCD at that vertical frequency.

If you want to know the actual settings, grab a Knoppix CD and watch the screen output while Knoppix is booting. If your LCD monitor responds to probing then the information will appear on screen. Yeah, I know, Slacker die-hards hate this advice, but sometimes the solution is more important than the journey.


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