Xvfb over Linux Virtual Framebuffer Driver

Leandro Galvez galvez.andy at cassis-intl.com
Thu Nov 13 18:15:15 PST 2008

Hi guys,

    Really need your help on this. Please help. In case you need to analyse my complete input and output files, attached is my config file and my output log file below.

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
  ----- Original Message ----- 
  From: Leandro Galvez 
  To: xorg at lists.freedesktop.org 
  Sent: Friday, November 14, 2008 9:36 AM
  Subject: Xvfb 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. Hope you guys can help me out of this mess.

  Thanks and best regards,


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  xorg at lists.freedesktop.org
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