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Artimus 11-29-2003 10:38 AM

Strange XFree Resolution Problems in Slackware 9.1
 
I'm not sure exactly how to describe this.

I have about 800x600 pixels visible on my screen, but I can "move around" to see the rest of my 1024x768 screen with my mouse. Maybe this little ASCII picture will explain it better.

______________________________________
| |
| ______________________________ |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |
|_____________________________________|


I can only see a picture the size of the inner square on my screen. If I move my mouse around, I can change what the square is focusing on. So if I want to see my fluxbox bar, I have to scroll around so you get:

______________________________________
| |
| |
| |
| ______________________________ |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |
| |xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx| |

gerrit_daniels 11-29-2003 11:21 AM

Hello,

I had the same problem. This happens because you can set your desktop resolution and your screen resolution seperatly. It seems that your desktop is set to 1024x768, while your screen is set to 800x600. So you'll probably want to change your screen resolution. Since I use Mandrake I can't tell you how to do this with Slackware.

Hope this helps.

320mb 11-29-2003 11:35 AM

please post your /etc/X11/XF86Config file.
someone will be able to tell you what is wrong.

slakmagik 11-29-2003 12:12 PM

It's not necessarily 'wrong' - there's a dumb 'feature' about a virtual display (different from virtual desktops) that, yeah, he may need to turn off in XF86Config. I had Linux on a 486SX that would only do 640x480 so X tried to be nice and give me fake 800x600 screen. I just found it really annoying. :)

Artimus 11-29-2003 01:02 PM

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 "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)
#
# 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/Speedo/"
FontPath "/usr/X11R6/lib/X11/fonts/Type1/"
# FontPath "/usr/X11R6/lib/X11/fonts/TrueType/"
# FontPath "/usr/X11R6/lib/X11/fonts/freefont/"
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><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 "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" "pc102"
Option "XkbLayout" "us"

EndSection


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

Section "InputDevice"

# Identifier and driver

Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/psaux"

# 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 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 31.5 - 82.0

# 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 50-70

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 "NVIDIA GeForce"
Driver "nvidia"
#VideoRam 131072
# 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 "NVIDIA GeForce"
Monitor "My Monitor"
DefaultDepth 24

Subsection "Display"
Depth 8
Modes "640x480" "1024x768" "1152x864"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "640x480" "1024x768" "1152x864"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "640x480" "1024x768" "1152x864"
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

Artimus 12-02-2003 04:36 PM

Bump...

gerrit_daniels?
320mb?

Tinkster 12-02-2003 04:50 PM

Quote:

From man XF86Config
Code:

      Virtual  xdim ydim
              This  optional  entry  specifies the virtual screen
              resolution to be used.  xdim must be a multiple  of
              either  8 or 16 for most drivers, and a multiple of
              32 when running  in  monochrome  mode.  The  given
              value will be rounded down if this is not the case.
              Video modes which are too large for  the  specified
              virtual  size  will  be rejected.  If this entry is
              not present, the virtual screen resolution will  be
              set  to accommodate all the valid video modes given
              in the Modes entry.  Some drivers/hardware combina-
              tions do not support virtual screens.  Refer to the
              appropriate  driver-specific  documentation  for
              details.


In other words, your problem are those lines ....


Quote:

Code:

Subsection "Display"

Modes "640x480" "1024x768" "1152x864"

EndSection


The desktop resolution will be as big as the
highest res in that list. If the physical resolution
is smaller than that you'll have that slide-effect.

Solution: only have the mode in that line
that you want as the physical resolution.
i.e., replace the lines with
Code:

Modes "800x600"
if 800x600 is what you want.


Cheers,
Tink

Artimus 12-02-2003 04:57 PM

I've done that before. X refuses to start saying that there are no screens found.

Tinkster 12-02-2003 05:06 PM

Maybe you accidently broke the structure
the first time around? Used a DOS/Windows
program to edit XF86Config? :}


Honestly, a changed modes line won't
corrupt the screen.

Make a backup copy of XF86Config and
try again.


Cheers,
Tink


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