Xorg over Linux Virtual Framebuffer Driver

Leandro Galvez galvez.andy at cassis-intl.com
Mon Nov 17 17:50:58 PST 2008

Anybody got any idea about this? Can anybody help me on this please?

Thanks and best regards,
  ----- Original Message ----- 
  From: Leandro Galvez 
  To: xorg at lists.freedesktop.org 
  Sent: Friday, November 14, 2008 10:24 AM
  Subject: Xorg over Linux Virtual Framebuffer Driver

  Hi All,

      I am trying to run Xorg on my arm target device. It has no physical display device so I just enabled linux virtual framebuffer. But when I try to run the xserver, I get the message "Cannot open virtual console 2". How do I get rid of this fatal error message preventing me to startup the Xorg server. Attached is my configuration file and the log file created by running "Xorg :98 -nolisten tcp". Did I miss anything? Or is it just my command line? What is this virtual console anyway? Do I need to map my fb0 to it and how? By the way, I am not using Xvfb as I still want other applications to bypass the X window system. So I am using Linux virtual frame buffer module, not the Xvfb"
      I did turn on "Virtual Terminal" in my device drivers and I also enabled "Support for console on virtual terminal". By the way I am using the prebuilt binaries from armel debian release as building the X system from scratch together with all its required libraries requires a great amount of effort and time. 
      Below is my /etc/X11/xorg.conf configuration file and my system's output log. Hope you guys can help me out of this mess.

  Thanks and best regards,

    Section "Device" 
        Identifier "FBDevice" 
        Driver "fbdev" 
        Option "fbdev" "/dev/fb0" 
    Section "Screen" 
    I    dentifier "FBScreen" 
        Device "FBDevice" 
        SubSection "Display" 
            Modes "default" 
    Section "ServerLayout" 
        Identifier "FBLayout" 
        Screen "FBScreen" 

    X.Org X Server 1.4.2 
    Release Date: 11 June 2008 
    X Protocol Version 11, Revision 0 
    Build Operating System: Linux Debian (xorg-server 2:1.4.2-7) 
    Current Operating System: Linux (none) #2 Tue Nov 4 09:48:40 SGT 2008 armv4tl 
    Build Date: 30 September 2008 04:47:25PM 
    Before reporting problems, check http://wiki.x.org 
    to make sure that you have the latest version. 
    Module Loader present 
    Markers: (--) probed, (**) from config file, (==) default setting, 
    (++) from command line, (!!) notice, (II) informational, 
    (WW) warning, (EE) error, (NI) not implemented, (??) unknown. 
    (==) Log file: "/var/log/Xorg.0.log", Time: Thu Jan 1 00:30:28 1970 
    (==) Using config file: "/etc/X11/xorg.conf" 
    (==) ServerLayout "FBLayout" 
    (**) |-->Screen "FBScreen" (0) 
    (**) | |-->Monitor "<default monitor>" 
    (**) | |-->Device "FBDevice" 
    (==) No monitor specified for screen "FBScreen". 
    Using a default monitor configuration. 
    (==) Automatically adding devices 
    (==) Automatically enabling devices 
    (==) No FontPath specified. Using compiled-in default. 
    (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. 
    Entry deleted from font path. 
    (WW) The directory "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" does not exist. 
    Entry deleted from font path. 
    (==) FontPath set to: 
    (==) RgbPath set to "/etc/X11/rgb" 
    (==) ModulePath set to "/usr/lib/xorg/modules" 
    (==) |-->Input Device "<default pointer>" 
    (==) |-->Input Device "<default keyboard>" 
    (==) The core pointer device wasn't specified explicitly in the layout. 
    Using the default mouse configuration. 
    (==) The core keyboard device wasn't specified explicitly in the layout. 
    Using the default keyboard configuration. 
    (II) No APM support in BIOS or kernel 
    (II) Loader magic: 0x1a0564 
    (II) Module ABI versions: 
    X.Org ANSI C Emulation: 0.3 
    X.Org Video Driver: 2.0 
    X.Org XInput driver : 2.0 
    X.Org Server Extension : 0.3 
    X.Org Font Renderer : 0.5 
    (II) Loader running on linux 
    (II) LoadModule: "pcidata" 
    (II) Loading /usr/lib/xorg/modules//libpcidata.so 
    (II) Module pcidata: vendor="X.Org Foundation" 
    compiled for 1.4.2, module version = 1.0.0 
    ABI class: X.Org Video Driver, version 2.0 
    (--) using VT number 2 
    Fatal server error: 
    xf86OpenConsole: Cannot open virtual console 2 (No such file or directory) 
    (WW) xf86CloseConsole: KDSETMODE failed: Bad file descriptor 
    (WW) xf86CloseConsole: VT_GETMODE failed: Bad file descriptor


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