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Thread: 10.04 won't boot without monitor / keyboard (headless)

  1. #1
    Join Date
    Apr 2007
    Beans
    12

    10.04 won't boot without monitor / keyboard (headless)

    I have several computers, both Ubuntu and windows xp. I have just put 10.04 onto a computer that I propose to boot without a monitor and to access from elsewhere using vinagre / vnc.
    Having installed 10.04 (and very nice it is too!), the computer will not boot without a monitor attached. After powering up and attaching a monitor, I see a black screen that requires a hard power-down to escape from. Boots fine with a monitor attached, thereafter I can detach the monitor and vinagre fine.
    I have reviewed this machine's bios (an HP desktop) and see no mention of suspending boot on no monitor.
    I have replaced the /etc/X11/xorg.conf file with the failsafe and have edited and updated the grub conf file to "quiet" as recommended elsewhere. No joy.
    I gather that this may be related to a monitor test that's performed when x starts up.
    Thanks in advance for all help. I can see that there are a quite a few threads on this subject over the last year.

  2. #2
    Join Date
    Mar 2010
    Beans
    1

    Talking Re: 10.04 won't boot without monitor / keyboard (headless)

    I have the exact same problem.

    Bug in launchpad : https://bugs.launchpad.net/ubuntu/+s...au/+bug/568079

    I found a fix , that work well for me. I restored an old xorg.conf file from my previous installation (8.04) and now, i can boot without monitor.


    This is my xorg.conf, if that can help someone.

    # nvidia-settings: X configuration file generated by nvidia-settings
    # nvidia-settings: version 1.0 (buildd@palmer) Sun Feb 1 20:21:04 UTC 2009


    Section "ServerLayout"
    Identifier "Default Layout"
    Screen 0 "Screen0" 0 0
    InputDevice "Keyboard0" "CoreKeyboard"
    InputDevice "Mouse0" "CorePointer"
    EndSection

    Section "ServerFlags"
    Option "Xinerama" "0"
    EndSection

    Section "InputDevice"
    # generated from default
    Identifier "Keyboard0"
    Driver "kbd"
    EndSection

    Section "InputDevice"
    # generated from default
    Identifier "Mouse0"
    Driver "mouse"
    Option "Protocol" "auto"
    Option "Device" "/dev/psaux"
    Option "Emulate3Buttons" "no"
    Option "ZAxisMapping" "4 5"
    EndSection

    Section "Monitor"
    Identifier "Monitor0"
    VendorName "Unknown"
    ModelName "CRT-1"
    HorizSync 28.0 - 33.0
    VertRefresh 43.0 - 72.0
    EndSection

    Section "Device"
    Identifier "Default Device"
    Driver "nvidia"
    Option "NoLogo" "True"
    EndSection

    Section "Device"
    Identifier "Device0"
    Driver "nvidia"
    VendorName "NVIDIA Corporation"
    BoardName "Quadro FX 500/FX 600"
    EndSection

    Section "Screen"
    Identifier "Default Screen"
    Device "Default Device"
    Monitor "Monitor0"
    EndSection

    Section "Screen"

    # Removed Option "metamodes" "nvidia-auto-select @1024x768 +0+0"
    Identifier "Screen0"
    Device "Device0"
    Monitor "Monitor0"
    DefaultDepth 24
    Option "TwinView" "0"
    Option "metamodes" "nvidia-auto-select @1024x800 +0+0"
    SubSection "Display"
    Depth 24
    EndSubSection
    EndSection

    Last edited by croco001; April 30th, 2010 at 06:39 PM.

  3. #3
    Join Date
    Jun 2008
    Beans
    3

    Re: 10.04 won't boot without monitor / keyboard (headless)

    No luck for me.. Can you explain further how to solve the issue?

  4. #4
    Join Date
    Jun 2008
    Beans
    3

    Re: 10.04 won't boot without monitor / keyboard (headless)

    Has anyone try reconfigure the xorg.conf to be the basic configuration as follows:
    Section "Device"
    Identifier "VNC Device"
    Driver "vesa"
    EndSection

    Section "Screen"
    Identifier "VNC Screen"
    Device "VNC Device"
    Monitor "VNC Monitor"
    SubSection "Display"
    Modes "1024x768"
    EndSubSection
    EndSection

    Section "Monitor"
    Identifier "VNC Monitor"
    HorizSync 30-70
    VertRefresh 50-75
    EndSection

  5. #5
    Join Date
    Aug 2005
    Beans
    3

    Re: 10.04 won't boot without monitor / keyboard (headless)

    Bump.

    I am also having the same problem. Did an upgrade form a very stable 9.10 to 10.04 last night. It hosed my boot up. Upon reattaching KVM, it immediately rebooted up to the new gui. When i detached and rebooted, it was borked again.

    I did a fresh install of 10.04 and was able to get it to work correctly, with no KVM attached, but without the monitor, it won't start GDM. I use GDM for some graphical network monitoring tools.

    VNC works fine.

  6. #6
    Join Date
    May 2007
    Beans
    6

    Re: 10.04 won't boot without monitor / keyboard (headless)

    Bump. I'm having the same issues as well with 10.04.

  7. #7
    Join Date
    Jan 2007
    Beans
    18

    Re: 10.04 won't boot without monitor / keyboard (headless)

    I think I may be having the same issue. Upgraded from 9.10 to 10.04 and since then cannot boot. Tried removing the KVM and plugging in the USB mouse/keyboard directly, didn't work, tried pulling that and plugging in an older keyboard, nothing, seems to be in boot up hell. I get endless messages, not sure what is significant. seems to stop sometime after "checking battery state" huh? I go to the recovery, and after choosing some flavor of 9.10 (only options) I get a menu where I should be able to chose several options (repair packages is one) but if I try to select a flash of full screen text shoots past and I'm back at the menu (cant select anything). Help please.

  8. #8
    Join Date
    Aug 2006
    Location
    Western Australia
    Beans
    45
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: 10.04 won't boot without monitor / keyboard (headless)

    bump

    same problems

  9. #9
    Join Date
    Jan 2010
    Beans
    28

    Re: 10.04 won't boot without monitor / keyboard (headless)

    bump bump
    same problem here

  10. #10
    Join Date
    May 2010
    Beans
    4

    Re: 10.04 won't boot without monitor / keyboard (headless)

    Same problem here... wrote a post, and found this one just now....

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