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Thread: Screen size changes every bootup

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  1. #1
    Join Date
    Jul 2007
    Beans
    114

    Question Screen size changes every bootup

    Hi everyone,

    I've been having quite an odd issue with my Ubuntu 9.04. For some reason every other (or third) time I boot up my laptop the visible screen becomes square and doesn't extend to the full resolution I expect of 1366x768. So essentially there is about an inch or so of black on either side of the screen. This is a *STOCK* installation and I have not edited the X server. I will be happy to provide more information or logs, just ask what you need!

    I have also attached the xlog from a boot where I got a square screen


    Code:
    ryan@TehLaptop:~$ lspci | grep VGA
    00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
    Code:
    ryan@TehLaptop:~$ cat /etc/X11/xorg.conf 
    
    Section "Device"
    	Identifier	"Configured Video Device"
    EndSection
    
    Section "Monitor"
    	Identifier	"Configured Monitor"
    EndSection
    
    Section "Screen"
    	Identifier	"Default Screen"
    	Monitor		"Configured Monitor"
    	Device		"Configured Video Device"
    EndSection
    ryan@TehLaptop:~$
    Attached Files Attached Files
    Last edited by ryanfx; September 3rd, 2009 at 01:53 AM.

  2. #2
    Join Date
    Jan 2008
    Location
    New Zealand
    Beans
    141
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Screen size changes every bootup

    I think it has something to do with this in your log file

    (II) intel(0): Output VGA disconnected
    (II) intel(0): Output LVDS connected
    (II) intel(0): Output TV connected
    (II) intel(0): Using fuzzy aspect match for initial modes
    (II) intel(0): Output LVDS using initial mode 1024x768
    (II) intel(0): Output TV using initial mode 1024x768
    The intel drivers are not the best at the moment. I would suggest putting a modeline and prefered mode in the monitor section of your /etc/X11/xorg.conf

    or adding "xrandr -s 1366x768" to your autostarted applications
    I muddled sometimes get my words up

  3. #3
    Join Date
    Jul 2007
    Beans
    114

    Re: Screen size changes every bootup

    Quote Originally Posted by sully101 View Post
    I think it has something to do with this in your log file



    The intel drivers are not the best at the moment. I would suggest putting a modeline and prefered mode in the monitor section of your /etc/X11/xorg.conf

    or adding "xrandr -s 1366x768" to your autostarted applications
    xrandr fails because that is not a currently available mode when it boots up in "TV" mode, so I will edit the xorg with a modeline and let you know
    Last edited by ryanfx; September 3rd, 2009 at 02:50 PM.

  4. #4
    Join Date
    Aug 2009
    Beans
    75
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Screen size changes every bootup

    I had the same problem with my Toshiba L505 laptop that has Intel GMA4500 graphics. I added the following to my xorg.conf file, and so far it seems to have solved my problem.

    Code:
    Section "Device"
        Identifier    "Configured Video Device"
            Option          "Monitor-LVDS"     "Laptop LCD"
            Option          "Monitor-TV"       "TV"
    EndSection
    
    Section "Monitor"
        Identifier    "Configured Monitor"
    EndSection
    
    Section "Monitor"
        Identifier    "Laptop LCD"
        Option        "PreferredMode" "1366x768"
    EndSection
    
    Section "Monitor"
        Identifier    "TV"
        Option        "Ignore" "True"    
    EndSection
    
    Section "Screen"
        Identifier    "Default Screen"
         Monitor        "Laptop LCD"
        Device        "Configured Video Device"
    EndSection

  5. #5
    Join Date
    Jun 2009
    Beans
    16
    Distro
    Ubuntu 9.10 Karmic Koala

    Re: Screen size changes every bootup

    Quote Originally Posted by BitJunkie View Post
    I had the same problem with my Toshiba L505 laptop that has Intel GMA4500 graphics. I added the following to my xorg.conf file, and so far it seems to have solved my problem.

    Code:
    Section "Device"
        Identifier    "Configured Video Device"
            Option          "Monitor-LVDS"     "Laptop LCD"
            Option          "Monitor-TV"       "TV"
    EndSection
    
    Section "Monitor"
        Identifier    "Configured Monitor"
    EndSection
    
    Section "Monitor"
        Identifier    "Laptop LCD"
        Option        "PreferredMode" "1366x768"
    EndSection
    
    Section "Monitor"
        Identifier    "TV"
        Option        "Ignore" "True"    
    EndSection
    
    Section "Screen"
        Identifier    "Default Screen"
         Monitor        "Laptop LCD"
        Device        "Configured Video Device"
    EndSection

    I have the same exact problem on my Lenovo Ideapad Y530 its the same Graphics Card. The resolution it is suppose to have is 1280 x 800. It does not even give me the option. How do I add what you added with the resolution I want instead of the 1366 x 768? I am a very new to Ubuntu please help!
    Last edited by Chicanob12; September 10th, 2009 at 04:12 AM. Reason: mistake

  6. #6
    Join Date
    Aug 2009
    Beans
    75
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Screen size changes every bootup

    I'm not an expert regarding xorg.conf, but I would think you would change the line that says
    Code:
    Option     "PreferredMode"   "1366x768"
    to
    Code:
    Option        "PreferredMode" "1280x800"
    But since 1280x800 doesn't seem to be a valid option, I would be reluctant to try it.

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