Ubuntu Networking :: Headless Server Fails To Load GUI Without Attached Monitor
Jul 25, 2010
I am running a server that is mostly headless, but does run the Gnome environment (I have ubuntu-desktop installed). I usually administer it via VNC over SSH. My problem is that when I reboot the system over SSH, the system fails to fully load the GUI, which prevents me from connecting via VNC (although SSH still works).
When I connected a monitor and rebooted, the system booted up fine. It appears that the GUI will not load without an attached monitor, which never happened before in previous Ubuntu versions. I do use many commands but prefer a GUI for certain tasks and visualization of my work since my system has the resources to spare. Running Lucid Lynx
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Jun 13, 2010
Well xubuntu wont boot without a monitor. I booted freenas without the monitor and plugged it back in and got a signal. So it isnt the bios.
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Aug 29, 2010
I've got a headless server (32 bit 9.04/9.10, can't remember) that started refusing SSH and HTTP connections a few days ago, and I'm just getting around to hopefully fixing it. The problem is that I can't even connect to the darn thing. I've plugged in a mouse, keyboard, and monitor, but the monitor tells me that it has no signal. I know the monitor works with the computer, as I used the same one to set up the server.
Just for kicks, I even tried to put in a live CD, but that didn't help. Any ideas on how I can connect to this thing?
[Code]...
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May 1, 2010
I just upgraded to Ubuntu 10.04 yesterday on a headless home server. I use the server for a variety of purposes, and what I don't know how to do via SSH I've alway been able to do through VNC. However, since the upgrade vino-server will no longer run if there isn't a monitor attached. Before it used to start up without a problem. Even by attempting to run the server via SSH gives me a "could not load display" error. Summary: I need to get vino-server running at boot time on a server with Ubuntu 10.04, without a monitor attached.
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Dec 28, 2014
I upgraded to jessie today and I am having problems with my background. When I log in, the background tries to start on the external monitor but then it fails to load. I can change the background in settings but it does not show up. The background just becomes black and I am not sure why.
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May 3, 2010
I have an Dell 755, and I have installed Ubuntu 10.4 desktop on it, everything works fine. I have it auto login, and run Azureus/Vuse at startup (so it can be a headless Bit Torrent server), it works perfectly. As soon as I try to go headless (no keyboard/mouse/monitor) the machine boots fine (I can SSH / FreeNX to the machine) but none of the GUI/apps load. What I think is happening is that when it boots without a monitor attached it does not load any of the X11 stuff. I need it to. It worked in Ubuntu 9.04 just fine, but now with 10.4 it is a no-go. Does anyone know how to force the X11/GUI to load when there are no monitors/hardware attached? This is the one thing standing in my was of getting Windows out of my house.
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Oct 1, 2010
I'm setting up a headless unit with Xubuntu (lucid), VirtualBox and Vino. It works fine except that when I unplug the monitor and reboot I can't connect via VNC. I can ssh in just fine. If I try to plug in a monitor to see the display I get no signal. My assumption is that Ubuntu detected no monitor and decided to ask me something or act differently.
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Jul 13, 2010
how to install vnc on a headless/monitor-less Ubuntu 10.04 ?i googled A LOT i couldn't find a well explained guide. i am not sure if this is the right place to post the thread. if it is not move the thread.
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May 9, 2010
I had to do quite a lot of digging before I managed to work out how to do this. It turns out to be reasonably straight forward, and so here is my howto all in one place.
Objective: Connect to my Ubuntu (Lucid Lynx) Desktop machine (which does not have a screen or keyboard) using a remote desktop viewer and get my usual GNOME desktop interface. And have the desktop persist while I am not disconnected.
I have recently discovered one niggly issue with some of the keys being messed up. 'm' and 's' in particular? I am looking into it and will update this post when I have resolved it.
The following steps were performed on a freshly installed version of Ubuntu 10.04-desktop. Just for clarity:
Code:
Install a VNC server. There is a choice of servers I chose the "tight" one.
Code:
Setup your VNC password. This password isn't very important as my setup will only allow for connections via SSH, so 123456 is what I used. One can possibly disable it?
Code:
At this point or the first time you run 'vncserver' (I forgot to check) the all important and much discussed ~/.vnc/xstartup file is auto generated. This is the make or break place where you can either get GNOME over VNC or not. My xstartup which required NO changes was:
Code:
Give the VNC server a test, by running it from the command line.
Code:
Try connecting to the VNC server:
Code:
Ok if that all worked then great! It all did for me and my machine was fresh from the CD.
Now we setup the VNC server to run all the time. There are a variety of ways of doing this. Since this howto requires the use of a SSH shell one could quite easily run the vncserver (as we did above to test it) and then disown (haven't tested if this is actually required) commands the first time you connect. This would leave the VNC server running until you used the vncserver --kill command. This would be a suitable approach if you had many different users wanting to have VNC GNOME desktops.
For convenience in a single user setup we can get the VNC server to be started at boot time:
Code:
Make the contents of 'vncserver.user' (credits to some smart guy on some blog out there that I couldn't find again. and then I made a few improvements):
Code:
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Jan 18, 2010
I had a dual boot Kubuntu 9.04 - FC 11 and decided to upgrade to Kubuntu 9.10. Recalling that I had issues with my ATI card drivers when I installed Kubuntu8.10 on my laptop, I decided to install the latest ATI Catalyst drivers. After the installation was complete I received a message warning me that if the X server fails to load I should run "aticonfig --initial -f". Indeed the X Server didn't load (after I logged in the screen flushed and went black). So I reinstalled Kubuntu 8.10 from a CD I without formating the respective partition. But the problem perists, X server fails to load. Even worse my menu.lst file has been changed and I can't boot FC11.
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Apr 28, 2010
I'm fairly new to RHEL but my boss has asked me to set him up a machine with RHEL 5.3 for some performance testing. He wants to access via VNC which isn't a problem as I've got that sorted.Problem is, the PC is sitting in the computer room with just the power and lan connections, no monitor etc. When I boot the PC with a monitor attached you can VNC into the server, but if I boot it without a monitor attached, VNC doesn't work?Any ideas how to get it so it always works when a monitor is not attached?[URL]
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Apr 30, 2010
I have an Ubuntu Linux 10.04 installation which I would like to use via remote desktop. Everything works perfectly if I start the computer with a monitor attached. If I do not, X fails to start because it cannot find any screens.
How can I force X to start up without a monitor attached?
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Feb 15, 2011
I successfuly installed CentOS to my Dell laptop using CentOS_5.5_Live_DVD.iso and mounting it to a USB flash drive with iso2usb.exe, Now my laptop will Not load CentOS when I remove the USB flash drive, I get a messege saying "no system found".
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Aug 13, 2010
I have 2 servers that are mirrored. They host 3 separate websites. Two of these websites are regular HTTP and the other is HTTPS with Digest authentication as well. The reason there are 2 servers is because one is a primary and the other secondary in case the primary goes down. Recently I decided to upgrade the secondary server then make it the primary server. I have done most of the configuration and the sites using regular HTTP are working perfectly fine. The page using SSL is not. Apache fails to load and here are the errors I am receiving the the error log file:
Code:
[Fri Aug 13 09:27:00 2010] [warn] RSA server certificate CommonName (CN) `newserver.domain.com' does NOT match server name!?
[Fri Aug 13 09:27:00 2010] [error] Unable to configure RSA server private key
[Fri Aug 13 09:27:00 2010] [error] SSL Library Error: 185073780 error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch
For the first warning, I cannot find anywhere that says the CN "newserver.domain.com", only what the CN is in the SSL key. I have no idea where to even start with the other errors.
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Feb 27, 2011
If power fails in the site and generator/UPS has it's last leg of power, how would I know if im away that something's about to go down? Is there a way for me to setup some alert to myself that we have just lost power in the site and everything's running on batteries? Is there a hardware of some sort that I can setup to send sms/call alerts to certain admins?
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Jan 10, 2011
I have bought a new motherboard (MSI 785GT-E63). I already have an old CRT monitor connected to it. After I install a linux OS to it, my monitor will display that it is:
Out of frequency.
Current frequency is 89Hz. The
operating output of my monitor is
(around) 60-70Hz.
I would like to get this thing work. How can I let my CRT display properly?I was thinking of lowering down video frequency output of my motherboard, but I can't find any settings on my BIOS setup. Additional info:
My monitor is attached directly to
the built-in video adaptor of my
motherboard. (No additional video
[code]....
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Mar 11, 2010
I'm running Fedora 11 GNOME as a server and I do not want to attach a keyboard, mouse or monitor. I will be shutting down the server at night to save electricity. But, I noticed that when I start up the system the next morning, the auto-login won't work until a monitor is attached. how to get the server to automatically log itself in without monitor attachment? I'm going to use the server to access my fileS remotely through Samba (which I can still do). But, I also want to have VNC functionality so I can remote desktop in to the system at will. I can access my files ok through Samba without the computer logging itself in, but I can't remote desktop in with VNC.
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Mar 3, 2010
It has no monitor attached, I'm accessing it graphically through vnc4server.It has no graphics card, and I want to get OpenGL to work on it, using software rendering.Right now, when I try to run glxgears, I get this.
Code:
Xlib: extension "GLX" missing on display ":1.0".
Error: couldn't get an RGB, Double-buffered visual
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Aug 11, 2010
I am using ATI HD3200 graphics card, and running Ubuntu 10.04 Lucid on a laptop. It have VGA port so I can attach external LCD monitor to the laptop. I am using fglrx driver.
My question is how should I configure the xorg.conf file so that when I attached external monitor, the GNOME menu bar (Applications, Places and System, etc) will be put on the external monitor instead of laptop LCD monitor.
I have checked varies web resource that saying you can drag and drop the GNOME menu bar to the new screen, it never worked. Someone also suggested to add new bar into the screen and GNOME will remember it, I can't even find the option to do that.
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Oct 27, 2009
We have a server that is running RHEL4 that occasionally spikes in load average above 10 and we have no idea what is causing it. We would like to know if there are any free tools or a script that when the load average hits a certain point it will trigger the system to start logging the processes to see what is happening. Usually by the time we get logged into the system the load average is on its way down. If someone has a better idea please let me know.
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Sep 25, 2010
I have a:
# lspci | grep Ether
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Looks like the r8169 module that gets loaded is not a valid choice for this chipset. The main error that I see is:
r8169: eth0: link down
ADDRCONF(NETDEV_UP): eth0: link is not ready
I have verified the cable and it's good the windows machine next door is fine using it without packet loss.
The system is a HP Desktop, just CentOS 5.5 loaded on it (base, with no updates).
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Jul 10, 2011
since upgrading the squeeze kernel from 2.6.26-2-686 to 2.6.32-5-686 I�ve been unable to boot my HP D510S/845G without attached monitor. As this computer serves as router and print/faxserver, there is/was neither a monitor nor a keyboard/mouse attached. With monitor everything works fine, without monitor the computer hangs somewhere. Unfortunately it hangs without logging anything in /var/log.
Reinstalling xorg and xserver-xorg didn�t change anything, neither was the new xorg.conf from dpkg-reconfigure -phigh xserver-xorg of any use. (After booting with attached monitor I disconnected the monitor and ran dpkg-reconfigure) Maybe disabling Xorg would solve the problem, but I want to be able to log in via vnc and use a GUI - for example to configure mythtv. Up to the kernel-update everything was working fine, so I think some changes to the new kernel are responsible. how to fix it or how to start logging earlier in the boot process?
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Jun 2, 2010
I've put a fresh install of Fedora 13 x86_64 on my new server and I have it automatically log in to the gnome desktop so I can control it via VNC. However this only happens when there is a monitor physically connected when the computer boots. If there is no monitor present at boot time, there is no graphical session started, however I want it to start whether or not a monitor is present.
My hardware is a Zotac IONITX-G-E board (which has an Atom N330 and a NVidia ion chipset of some description). I'm using the Fedora default graphics driver (nouveau). Why doesn't it start a graphical session with no monitor, and is there any way to get Fedora to start one whether or not there is a monitor connected?
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May 14, 2010
I can''t make the machine booth when a monitor is NOT attached to the machine. The PC seems to get past the P.O.S.T with minimal HDD activity, and then it simply hangs there, doing nothing. I know Linux is not booted because the HDD flashes briefly only 3-4 times and then absolutely nothing. When a monitor is attached, everything works perfectly.
I read somewhere that this happend when GRUB tries to display graphics, so I edited the menu.lst and removed the graphics line within it, which causes GRUB to display a B/W clear-text boot-menu (when a monitor is attached), but the machine still won't boot with no monitor. I also edited inittab to boot to level 3, same outcome.
More Info:
HW. FIC ION A603
~Welcome to First International Computer, Inc.~
OpenSuse 11.2 - Almost default install
Added SW: VNC and Squid (both active on Init 3 and 5
Boot Loader: GRUB
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May 4, 2010
I am attempting to write a very basic script that monitors a server's load and automatically emails an administrator upon the load reaching a certain threshold...
1.) `uptime | awk -F ' ' {'print $10'} | cut -d ',' -f1 | awk -F '.' {'print $1'}` -- the output from this command results in a decimal figure, so when that value is parsed and placed in an if statement, the value is not seen as a number. load-monitor.sh: line 9: [: 4.96: integer expression expected/How can I allow a number like "4.56" to be seen as an actual number within the if statement and be compared to 4, for instance?
2.) I am running a cPanel server on CentOS 5.4 -- when I run mail -s "SUBJECT" $EMAILADDRESS the command just hangs, and stracing the process shows it stuck on a read syscall.
3.) If I wanted to write this script in PHP, I have one primary confusion -- how can I mimic the functionality of obtaining the output from uptime via awk, etc. so that I can determine what the server load is at a given time? Which PHP function(s) would assist in that regard?
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Oct 14, 2014
I am currently trying to install Debian Wheezy 7.6 x86_64 on an Intel Server System R2224GZ4GC4, but the Installer doesn’t recognise any of the devices attached to the onboard SATA controller.
Debian Version
Debian Wheezy 7.6 x86_64
Hardware used
Server: Intel Server System R2224GZ4GC4
Motherboard: Intel S2600GZ4
Onboard SATA Controller: Intel Patsburg 4-Port SATA Storage Control Unit (rev 06)
Device on Port 0: Samsung 840 Pro Series SSD
Device on Port 1: Samsung 840 Pro Series SSD
Device on Port 2: Samsung 840 Pro Series SSD
Device on Port 3: Intel 510 Series SSD
While the onboard SATA controller does support so-called “fake RAID,” this ‘feature’ has been disabled (i.e., the BIOS setting “SAS/SATA Capable Controller” is set to “INTEL(R) RSTe”). This is confirmed by the controller during the boot-up URL...Weirdly enough, the Intel 510 Series SSD contains an old system (Debian Squeeze 6.0, Kernel 2.6.35-5-amd64), which can boot and which does recognise all SSDs.
Remedies tried
* I’ve compiled the list of SCSI, SAS and block device related modules that the Squeeze-System, which recognises the SSDs, used and manually loaded these modules during the install process.* I’ve tried to rescan the SCSI bus by:
Code: Select allfor host in /sys/class/scsi_host/*; do echo "- - -" > $host/scan; done* I’ve tried to remove all disks, save for the Intel 510 Serives SSD.* I’ve tried all of the above combined.
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Jan 22, 2011
I have now had an Ubuntu desktop server on a very crappy server (network filesystem with enourmus latency) for a year and as the subscription will soon run out I opted for a slightly better one, still crappy but at least a "complete server" (cpu+mem+HD).And a headless installation of Ubuntu Server 10.10 "Maverick Meerkat" instead of my Desktop version.I'm not using it for web pages or other 'ordinary' things though, I'm running my homemade MMORPG off of it and this new headless situation is a bit unclear to me.
I created an account and password with my root account, a folder with the username was created in /home/ and I uploaded my mmorpg executable there with an ftp client.I tried to change the whole folder (being root) to 777 but it didn't work either.
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Aug 18, 2011
I have an HP MSS 487 (headless). I was going to update to WHS2011 but was thinking of trying Ubuntu Server first. My MSS has a USB slot, but I'm not sure how to start and run Ubuntu Server from that USB stick. I can use remote desktop to access the box. I'll also need to install something on my other pcs/macs so that I can get the backups working. I didn't see anything that is similar to the whs connector software (client). Would I need to install a full Ubuntu client to do the backups?
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Dec 10, 2009
I reinstalled fedora the other day, and it's been working just fine, apart from the internet. It shows that I have a full connection with the wireless network, but it's really difficult to actually load a page. 80% of the time it just fails and shows "Page Load Error". It's really frustrating because it is connected to the internet. In fact, the icon in the address bar even loads from the site I try to access, but websites just will not load.
I've tested my wireless internet with another laptop which is running vista, and it works perfectly on that. Also, I'm running Fedora 10 on an Acer Extensa laptop.
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May 2, 2010
I have the latest download of Ubuntu Server 10.04 installed. I have not installed a gui for it. I would like to be able to do this from command line if possible. I will be running this server headless but I would like to be able to login remotely if necessary. My hunch is I will need a gui to be able to log in remotely?
I have three Internal drives in my server. 80GB, ext4 formatted, this has the server os loaded on it. The other two drives are 160 and 500GB formatted ext4 as well but they are empty. I have two Ext USB drives with all my stuff I don't want to lose. Both are formatted NTFS. So I need help but keep in mind I am going to run the server headless, but would like to login remotely if necessary without a gui.
My other home computers will dual boot windows or linux, so I need to know what is the safest and best way to format the two drives in my server. ex4 or ntfs? Will I be able to run server without a gui as headless? I just installed Samba4 and starting down the learning curve by googling how to set it up.
My file sharing is simple. Nothing special within the Lan, but want to keep hackers out from the outside world. I use Logmein on my windows computers and may want to setup a remote login for the server at some point. Right now my big this is setting up the drives, shares, and going headless. I would like to be able to just turn the thing on and not worry about it.
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