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hi, i can't change my resolution. i'm running ubuntu on my powerboog G4. i tried changing resolution ( system>....>resolution) but i can only choose 640*480 and nothing else can someone ...
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  1. #1
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    Exclamation can't change resolution (mac)


    hi,
    i can't change my resolution.
    i'm running ubuntu on my powerboog G4.
    i tried changing resolution ( system>....>resolution) but i can only choose
    640*480 and nothing else

    can someone help me pls

    grtz Feyske
    *sry for my bad english*

  2. #2
    Linux Engineer Thrillhouse's Avatar
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    You'll have to edit your /etc/X11/xorg.conf file to include some new resolutions. Find the section that says "Screen", see what the DefaultDepth is then add the new resolution(s) you want to use to whatever depth you are using. You can post any problems you're having here.

  3. #3
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    how do you do all this?
    i'm kinda newbie

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  5. #4
    Linux Engineer Thrillhouse's Avatar
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    Try this:
    $sudo gedit /etc/X11/xorg.conf
    Enter root password then scroll down to the section that says "Screen". A couple of lines after screen should be a line that says something like
    DefaultDepth 24
    Take note of whatever number follows DefaultDepth, then scroll down a little bit until you find the section with that number. There will probably be a few "Depth" sections until you get to 24 (maybe 1, 8, 15, 16). Once you get to 24. Take a look at the resolutions that are listed there. If the one you want is not listed, then add it. For example, if this is what you have:
    Code:
    SubSection "Display"
                    Depth     24
                    Modes   "640x480"
            EndSubSection
    Then you can modify it to include whatever resolutions your graphics card is capable of supporting:
    Code:
     SubSection "Display"
                    Depth     24
                    Modes    "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
            EndSubSection
    Log out after you do that and log back in. Your new resolutions should be listed under System -> Preferences -> Screen Resolution now.

  6. #5
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    did that and i still can't choose resolution :s
    this is what i did
    SubSection "Display"
    Depth 24
    Modes "1024x768" "800x600"
    EndSubSection

  7. #6
    Linux Engineer Thrillhouse's Avatar
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    Is 24 your DefaultDepth? Did you save the changes to the file as root and log out so that the changes could take effect?

  8. #7
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    this is what i did:

    i looked to the default:
    Section "Screen"
    Identifier "Default Screen"
    Device "ATI Technologies, Inc. Radeon R250 Lf [Radeon Mobility 9000 M9]"
    Monitor "Generic Monitor"
    DefaultDepth 24
    then i changed this:
    SubSection "Display"
    Depth 24
    Modes "1024x768" "800x600"
    EndSubSection
    then i clicked on 'save'
    and then i loged off and on again...

  9. #8
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    is there someone who knows another posibility?

  10. #9
    Super Moderator devils casper's Avatar
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    Suggestions posted by Thrillhouse should work. post the contents of xorg.conf file here.





    casper
    It is amazing what you can accomplish if you do not care who gets the credit.
    New Users: Read This First

  11. #10
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    this is it:
    Code:
    # /etc/X11/xorg.conf (xorg X Window System server configuration file)
    #
    # This file was generated by dexconf, the Debian X Configuration tool, using
    # values from the debconf database.
    #
    # Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
    # (Type "man /etc/X11/xorg.conf" at the shell prompt.)
    #
    # This file is automatically updated on xserver-xorg package upgrades *only*
    # if it has not been modified since the last upgrade of the xserver-xorg
    # package.
    #
    # If you have edited this file but would like it to be automatically updated
    # again, run the following command:
    #   sudo dpkg-reconfigure -phigh xserver-xorg
    
    Section "Files"
    	FontPath	"/usr/share/X11/fonts/misc"
    	FontPath	"/usr/share/X11/fonts/cyrillic"
    	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
    	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
    	FontPath	"/usr/share/X11/fonts/Type1"
    	FontPath	"/usr/share/X11/fonts/100dpi"
    	FontPath	"/usr/share/X11/fonts/75dpi"
    	# path to defoma fonts
    	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
    EndSection
    
    Section "Module"
    	Load	"i2c"
    	Load	"bitmap"
    	Load	"ddc"
    	Load	"dri"
    	Load	"extmod"
    	Load	"freetype"
    	Load	"glx"
    	Load	"int10"
    	Load	"type1"
    	Load	"vbe"
    EndSection
    
    Section "InputDevice"
    	Identifier	"Generic Keyboard"
    	Driver		"kbd"
    	Option		"CoreKeyboard"
    	Option		"XkbRules"	"xorg"
    	Option		"XkbModel"	"pc104"
    	Option		"XkbLayout"	"us"
    EndSection
    
    Section "InputDevice"
    	Identifier	"Configured Mouse"
    	Driver		"mouse"
    	Option		"CorePointer"
    	Option		"Device"		"/dev/input/mice"
    	Option		"Protocol"		"ExplorerPS/2"
    	Option		"ZAxisMapping"		"4 5"
    	Option		"Emulate3Buttons"	"true"
    EndSection
    
    Section "InputDevice"
    	Identifier	"Synaptics Touchpad"
    	Driver		"synaptics"
    	Option		"SendCoreEvents"	"true"
    	Option		"Device"		"/dev/psaux"
    	Option		"Protocol"		"auto-dev"
    	Option		"HorizScrollDelta"	"0"
    EndSection
    
    Section "InputDevice"
      Driver        "wacom"
      Identifier    "stylus"
      Option        "Device"        "/dev/wacom"          # Change to 
                                                          # /dev/input/event
                                                          # for USB
      Option        "Type"          "stylus"
      Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
    EndSection
    
    Section "InputDevice"
      Driver        "wacom"
      Identifier    "eraser"
      Option        "Device"        "/dev/wacom"          # Change to 
                                                          # /dev/input/event
                                                          # for USB
      Option        "Type"          "eraser"
      Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
    EndSection
    
    Section "InputDevice"
      Driver        "wacom"
      Identifier    "cursor"
      Option        "Device"        "/dev/wacom"          # Change to 
                                                          # /dev/input/event
                                                          # for USB
      Option        "Type"          "cursor"
      Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
    EndSection
    
    Section "Device"
    	Identifier	"ATI Technologies, Inc. Radeon R250 Lf [Radeon Mobility 9000 M9]"
    	Driver		"ati"
    	BusID		"PCI:0:16:0"
    	Option		"UseFBDev"		"true"
    EndSection
    
    Section "Monitor"
    	Identifier	"Generic Monitor"
    	Option		"DPMS"
    EndSection
    
    Section "Screen"
    	Identifier	"Default Screen"
    	Device		"ATI Technologies, Inc. Radeon R250 Lf [Radeon Mobility 9000 M9]"
    	Monitor		"Generic Monitor"
    	DefaultDepth	24
    	SubSection "Display"
    		Depth		1
    		Modes		"640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth		4
    		Modes		"640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth		8
    		Modes		"640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth		15
    		Modes		"640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth		16
    		Modes		"640x480"
    	EndSubSection
    	SubSection "Display"
    		Depth		24
    		Modes		"1024x768" "800x600"
    	EndSubSection
    EndSection
    
    Section "ServerLayout"
    	Identifier	"Default Layout"
    	Screen		"Default Screen"
    	InputDevice	"Generic Keyboard"
    	InputDevice	"Configured Mouse"
    	InputDevice     "stylus" "SendCoreEvents"
    	InputDevice     "cursor" "SendCoreEvents"
    	InputDevice     "eraser" "SendCoreEvents"
    	InputDevice	"Synaptics Touchpad"
    EndSection
    
    Section "DRI"
    	Mode	0666
    EndSection

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