Hi Everyone,

I am a newbie to Linux so I apologise if I am missing the obvious.

I installed Fedora 3 in an attempt to move away from Windows. The installation went okay except the only problem is the display. I have been searching unsuccessfully to find a solution. I cannot get the display higher than 800x600.

From Applications - Preferences - Screen Resolution I do have the option for 1024x768. However when I select this the screen has a tile effect.

From Applications - System Settings - Display I only have 800x600 and 640x480 as options.

My monitor type is listed as unknown under the Hardware tab under Applications - Systems Settings - Display. I cannot change this because the OK button is disabled.

I have tried editing the etc/X11/xorg.conf file. I added an entry for 1024x768. This does not seem to show up anywhere. I even added 1200x768 to see if it shows up and it does not. So it looks like what I add here has no effect.

I am a little confused where to go from here. What is the difference between screen resolution under Applications - Preferences - Screen Resolution and Applications - System Settings - Display? What should I try next?

Any help would be greatly appreciated because I am VERY keen to say goodbye to Windows.

When you added the entry did you make it the default. Try that and restart X.

How do you make the entry the default?

I cannot understand why the entries I add in the file do not even show as options for Applications - Preferences - Screen Resolution or Applications - System Settings - Display?

Is there some other file I should be editing?



Here is the contents of my xorg.conf file.


# XFree86 4 configuration created by pyxf86config

Section "ServerLayout"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Synaptics" "AlwaysCore"
EndSection

Section "Files"

# RgbPath is 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.
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Red Hat 6.0 and later now use a font server independent of
# the X server to render fonts.
RgbPath "/usr/X11R6/lib/X11/rgb"
FontPath "unix/:7100"
EndSection

Section "Module"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"
Load "synaptics"
Load "dri"
EndSection

Section "InputDevice"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# Option "Xleds" "1 2 3"
# To disable the XKEYBOARD extension, uncomment XkbDisable.
# Option "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:
# 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"
# Or if you just want both to be control, use:
# Option "XkbOptions" "ctrl:nocaps"
#
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "yes"
EndSection

Section "InputDevice"
Identifier "Synaptics"
Driver "synaptics"
Option "Device" "/dev/input/mice"
Option "Protocol" "auto-dev"
Option "Emulate3Buttons" "yes"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Unknown monitor"
HorizSync 31.5 - 37.9
VertRefresh 50.0 - 70.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "radeon"
VendorName "Videocard vendor"
BoardName "ATI Radeon IGP330M/340M/350M"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1200x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1200x768" "800x600" "640x480"
EndSubSection
EndSection

Section "DRI"
Group 0
Mode 0666
EndSection

I seem to have solved the problem by changing the following
HorizSync 31.5 - 48.5
VertRefresh 40.0 - 70.0

Now 1024x768 shows as an option under Applications - System Settings - Display.

Does anybody know if this can harm the system by changing these values over a certain limit?
I found these values by googling for Presario 2500 HorizSync and VertRefresh.

Do you know the exact vertical and horizontal resolution. It's possible that it could harm the monitor it's way off.

I also use FC_3. I had to fix that problem too.
This is the 'normal' (GUI) way to do it.
What I did is go to Applications --> System Setting --> Display and click on the tab 'Hardware', then for 'Monitor Type', click 'Configure', and under 'Generic LCD Display' select 'LCD Panel 1024x768' and for me it set the hsync and vert refresh automatically. Mine got set to hsync: 31.5 - 48.5 and vert refresh: 40.0 - 70.0, which are the same as yours so I think that what you did should work fine.

This is my monitor section in /etc/X11/xorg.conf:
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "LCD Panel 1024x768"
HorizSync 31.5 - 48.5
VertRefresh 40.0 - 70.0
Option "dpms"