[SOLVED] How to change resolution from 800 to 1024 ?

[KiwiLinux7.10]

HI i already asked this ,but obviously that post is made for other purposed ,and i did an error to post this question there, anyway now i want to choose my Screen Resolution
1024x768 but when i go to Configure Desktop ,i just see 800x600 as my maximum choice.
Where else to change it to 1024x768 ?

Yes ,i have a powerful VGA card 512 MB ATI radeon , i tried at ATI control center ,but there was no option for setting my monitor preferences there .

[devils casper]

Have you install ATI Proprietary Driver? Post the contents of /etc/X11/xorg.conf file here.

[KiwiLinux7.10]

Yes i have installed ATI proprietary driver.
Here are the contents of the etc:

# File generated by XFdrake (rev 234840)

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

Section "ServerFlags"
#DontZap # disable <Ctrl><Alt><BS> (server abort)
AllowMouseOpenFail # allows the server to start up even if the mouse does not work
#DontZoom # disable <Ctrl><Alt><KP_+>/<KP_-> (resolution switching)
EndSection

Section "Module"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "type1"
Load "freetype"
Load "glx" # 3D layer
Load "dri" # direct rendering
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "XkbOptions" "compose:rwin"
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "ExplorerPS/2"
Option "Device" "/dev/mouse"
EndSection

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "1024x768 @ 60 Hz"
HorizSync 31.5-48.5
VertRefresh 50-70
EndSection

Section "Device"
Identifier "device1"
VendorName "ATI Technologies Inc"
BoardName "ATI Radeon 9500 to Radeon X1050"
Driver "fglrx"
Option "DPMS"
EndSection

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24

Subsection "Display"
Depth 8
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection

Subsection "Display"
Depth 15
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection

Subsection "Display"
Depth 16
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection

Subsection "Display"
Depth 24
Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
EndSubsection
EndSection

Section "ServerLayout"
Identifier "layout1"
InputDevice "Keyboard1" "CoreKeyboard"
InputDevice "Mouse1" "CorePointer"
Screen "screen1"
EndSection

[devils casper]

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "1024x768 @ 60 Hz"
HorizSync 31.5-48.5
VertRefresh 50-70
EndSection

Are those Refresh rates supported by your Monitor? Check Monitor's Manual and edit xorg.conf accordingly.

Section "Device"
Identifier "device1"
VendorName "ATI Technologies Inc"
BoardName "ATI Radeon 9500 to Radeon X1050"
Driver "fglrx"
Option "DPMS"
EndSection

Replace Driver "fglrx" with "vesa".

Section "Device"
Identifier "device1"
VendorName "ATI Technologies Inc"
BoardName "ATI Radeon 9500 to Radeon X1050"
Driver "vesa"
Option "DPMS"
EndSection

[KiwiLinux7.10]

Yes my monitor supports up to 60 , and when i edit with Kwrite , when i want to save the changes i got this error :

The document could not be saved, as it was not possible to write to file:///etc/X11/xorg.conf.
Check that you have write access to this file or that enough disk space is available.

???

[devils casper]

You must have root privileges to edit any file outside your /home/user_id folder.
Press Alt+F2 and type this

kdesu kate  /etc/X11/xorg.conf

[KiwiLinux7.10]

I did that and edited the file ,by replacing flgrx with vesa , saved it.
Still nothing happened ?????

[devils casper]

Section "Monitor"
Identifier "monitor1"
VendorName "Generic"
ModelName "1024x768 @ 60 Hz"
HorizSync 31.5-48.5
VertRefresh 50-70
EndSection

Have you set Refresh Rates supported by your Monitor? Check Monitor's Manual.

[KiwiLinux7.10]

I know it support 60 , so how should i change the refresh rates, what number should i replace with what ?

[devils casper]

Try these :

HorizSync 31 - 70 
VertRefresh 50 - 120