[linux-help] Re: X has ghosts and literally giving me a headache

[Jeff Vian <jvian10@xxxxxxxxxxx>]

I noted your monitor is set for:

          HorizSync   30-70
          VertRefresh 50-160

Mine is set for :
          HorizSync   30-107
          VertRefresh 50-170
      on 3 different systems (with vodoo4 4500 card (32mb) ,
                         with GeForce2 (32mb),
                        and with Diamond Monster Fusion (16mb)
I am using a KVM switch to allow one monitor on all 3 systems and
have no "shadows"

I would suggest trying a slight change in the horiz sync range to see if
that fixes the problem. Possibly 30-90 or some such to allow it to 
select the best value for your monitor.


Clint Brubakken wrote:
> I upgraded to redhat 7.3, via apt (painful, don't try this at home). And
> it installed XFree86 4.2 (after removing my existing XFree86). 
> 
> So I had to set-up X again, so I did it the "red-hat" way, and ran
> Xconfigurator, and it probed my monitor and video card right (except it
> didn't detect how much memory on the video card). 
> 
> I picked the modes I wanted and started it and it works fine -- almost. 
> 
> There is a visible ghost underneath my cursor, and its gives me a
> headache. 
> 
> I tried running xf86config by hand, and got the same problem. 
> 
> Here is my config, I'd appreciate any help.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> -- Attached file included as plaintext by Ecartis --
> -- File: XF86Config
> 
> # File generated by xf86config.
> 
> #
> # Copyright (c) 1999 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.
> # **********************************************************************
> 
> # **********************************************************************
> # 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 Type1 and FreeType font modules
>     Load        "type1"
>     Load        "freetype"
> 
> # This loads the GLX module
> #    Load       "glx"
> 
> 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)
> # 
> # 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/local/"
>     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/"
> 
> # 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><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    "Keyboard"
> # 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"    "pc102"
> # 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 XFree86
> #    Option "XkbRules"    "xfree86"
> #    Option "XkbModel"    "pc101"
> #    Option "XkbLayout"   "us"
> #    Option "XkbVariant"  ""
> #    Option "XkbOptions"  ""
> 
> #    Option "XkbDisable"
> 
>     Option "XkbRules" "xfree86"
>     Option "XkbModel" "pc101"
>     Option "XkbLayout"        "us"
> 
> EndSection
> 
> 
> # **********************************************************************
> # Core Pointer's InputDevice section
> # **********************************************************************
> 
> Section "InputDevice"
> 
> # Identifier and driver
> 
>     Identifier        "Mouse1"
>     Driver    "mouse"
>     Option "Protocol"    "PS/2"
>     Option "Device"      "/dev/mouse"
> 
> # 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 XF86Config 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   30-70
> 
> #    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 50-160
> 
> 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 xf86config:
> 
> Section "Device"
>     Identifier  "SiS 620"
>     Driver      "sis"
>     #VideoRam    8192
>     # Option "No_Accel"
>  # Option "XaaNoPixmapCache"
>     # 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      "SiS 620"
>     Monitor     "My Monitor"
>     DefaultDepth 16
> 
>     Subsection "Display"
>         Depth       8
>         Modes       "640x480" "800x600" "1024x768" "1280x1024"
>         ViewPort    0 0
>     EndSubsection
>     Subsection "Display"
>         Depth       16
>         Modes       "640x480" "800x600" "1024x768" "1280x1024"
>         ViewPort    0 0
>     EndSubsection
>     Subsection "Display"
>         Depth       24
>         Modes       "640x480" "800x600" "1024x768" "1280x1024"
>         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
> 
> 
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