Ubuntu Servers :: Unable To See Login Using Xvnc (when No Screen Connected)
Aug 27, 2010
I have a VNC connection running to my Ubuntu 10.04 server [URL]. This was running fine for a day or 2 after that, sometimes it worked and sometimes not. When it didn't work, I could connect with VNC (i got a gray window with the cursor) but no login screen was shown.
After some testing I now know what the root cause is. When I disconnect the screen from my server, I don't get the login screen. When I connect the screen (even if it is not powered) after a reboot, I can see the login screen. Next I was looking for some logging that could indicate some problems. I looked into "/var/log/Xorg.0.log" and there I see a difference when I connect/disconnect the screen. When the screen is disconnected, the log says:
Code:
(II) intel(0): Integrated Graphics Chipset: Intel(R) Pineview G
(--) intel(0): Chipset: "Pineview G"
(II) intel(0): Output VGA1 has no monitor section
(II) intel(0): EDID for output VGA1
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Oct 10, 2010
I recently powered up my netbook... Selected my user log in, entered my password, and after a couple seconds I briefly see what looks to be the console and am returned to the login splash screen... I can Ctrl+Alt+F2 to get to the console and log in... but that is as far as I can get. This is the case for Gnome, Remix, and Remix 2D.
I can sudo apt-get (update, upgrade, etc) as well. It is the right password because if I type in a wrong one it presents an authentication failure dialog box.
How can I fix my log in screen and get to my desktop? I am Currently running 10.04.... waiting to get 10.10
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May 31, 2011
I'm having a bit of an issue. I was transferring some files from an external hard drive onto my desktop computer running ubuntu 10.04...It filled up the hard drive to the max, rebooted and I couldn't login. Did some googling and thought it might be because it was too full so I plugged the ubuntu HDD into my laptop, removed some files and tried again. Still no luck.
What it does is tries to automatically login (that's how I have it set) at the main login prompt, it for some reason is not able to and the screen flickers a bit and shows the login screen. I enter my username and password and it flickers really quick and goes back to the login screen. Does this for my other user account as well. I can login via the command prompt (ctl-alt-f7) and do stuff there, but I cannot login to the GUI.
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Feb 17, 2010
I have done a clean intall of Ubuntu 9.10 (K. Koala). Got everything up and working with 2 users, me with full privelleges and my son with a ltd account. Everything was working well so I moved the PC to my sons room, connected it to his TV and was able to log in as both users.
I changed the display settings on his account as when using the 1360 x 768 (16:9) setting the top bar and the last icons on the screen weren't visable, the desktop also started about 2inches from the left hand side of the screen, so changed them to 800 x 600 and whole desktop visable.
I switched user and did the same to my desktop. Then switched the pc off. I come back to it now, boot it up, get to the user/password screen, select me and enter my password, the screen flickers, little Ubuntu drum roll, and I return to the login screen. So I try my sons login, same result. No password authenticaion message, so I guess this isn't the issue. Surley just changing display settings can't have this effect?
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May 5, 2010
I recently upgraded to Ubuntu 10.04 LTS and at first, everything was just fine. This issue came about yesterday, as far as I know, while my screen was locked. The login screen now displays only half of the original login screen (left side) and the other half (right side) is an odd view of a black background with a white box in the center (see this mock up). Another note of interest is that the right side pans as I move the mouse around the screen, as if the right-side view were a second view port to the login screen without displaying it properly.
I am not able to log in whatsoever. An incorrect password results in the standard error message. A correct password results in a temporary black screen, as if to load to the desktop, but then redisplays the login screen as if I hadn't logged in at all. I'm not sure where to begin, as I cannot login to run any commands and the grub menu does not give options to start in safe mode--it just loads directly to the latest instance of Ubuntu.
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Sep 17, 2010
I have got a 10.4 LTS LTSP server running as i needed it should do.
When i boot-up one of the terminal it sees the DHCP and starts loading from the LTSP all working ok.... when it gets the login screen some of the terminals get the box on the screen to enter the user name and password. the other terminal dose not.
The work around i have got is that i have to click on the blank screen at the bottom left to get the "pick a session" button then i can login and can login as normal.
When all the clients login all is well, And works as if the system was loaded locally its fast and at the mow its reliable. The only thing that is not working as it should is the log in screen.
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Jan 17, 2011
I may be a beginner to Ubuntu 10.10, but I'm fairly certain that this is weird: I have had no trouble logging into my Ubuntu 10.10 netbook until this morning. Now I am unable to get past the login screen. It says that there is an Authentication Failure, which is bogus. Not only should the password work, but it does in the Terminal. I am able to login to the terminal and gain root access.
I can even change my unix password, but no matter what I try I can't get to my desktop. I did run into a major issue with a frozen program. Rather than reboot, I tried to close it using the kill command. What ended up happening was that all that remained was my wallpaper, probably a bad move on my part, but I'm a rookie. I think I killed all running applications. This happened last night... so probably related.
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Sep 1, 2010
here is Maneesh Kumar Dhiman from india persuing B.Tech in computer science and Engg. i am using ubuntu 9.04 and i have the problem with it that i cannot being able to update it by following ways:
1. by using snaptic package manager
2.by using update manager
3.by terminal commands and also i have a problem with U9.04 n that is i can not being able to login from user screen as a root.
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Jan 15, 2011
I have a web server running Ubuntu Maverick Server Edition. I changed the /etc/motd file to something custom (some awesome ASCII art). This changes the login for every single user on the entire system. My question is this: Is there a way to change that login file and make it different for each user or is that the only file and it can only be done system-wide.
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Oct 14, 2009
I clean-installed Fedora 11 and everything was running well. I wanted to try Bacula backup program and so I installed the Development package in other to compile Bacula. When I finished the installation, I discovered a bunch of foreign language supports had been installed. I just erased them. While doing so, I must have also erased some other files.
When I rebooted, the bootup process went well until just before the login screen. The screen showed the Fedora logo, f, and got stock there. I was able to login remotely from another local network computer via vncviewer. I found that GNOME dsktop was missing. I logged on to Fedora 11 text mode by issuing CTL+ATL+F3 and did 'yum groupinstall "GNOME Desktop Environment" By remote login from another computer, I determined that the GNOME Desktop had been restored. But the Fedora 11 still stil stuck just before the login screen. What do you think is missing? What do I need to reinstall?
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Jan 11, 2010
This may sound a bit odd, but after installing Ubuntu Server 9.10 64-bit version, I can't seem to log in with the root account that I created. My user account works fine. I thought that I may have fat fingered the password when I created it so I ran the installer again since it takes very little time to do so. When creating the new root account password, I was very careful to type it correctly. After the install was complete, I am still unable to use the root account. I'm unable to SU from my normal user account, too. I just receive the Login incorrect error. Is there something with using root accounts with Ubuntu server that I'm missing?
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May 20, 2010
Command '/usr/bin/kcmshell4 kdm --lang en_US' not found
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Apr 12, 2011
My last setup (years ago) ran fluxbox so because it was familiar I installed it as a secondary to xfce right off the bat. I download a lot of different stuff because I like to try out all the apps I can find but somewhere I broke something. I can still run fluxbox fine, but nither the Xubuntu nor Xfce sessions will run now. Last thing I remember changing was pulse audio(removed it for an experiment I was trying with jack audio), not sure if it is connected but when I try to login to xfce the screen goes black, flickers a few times then it brings me back to the login screen.
I tried failsafe but everytime I do my monitor gives me a "frequency out of range" error. I tried purging and reinstalling xubuntu desktop and xfce settings but I am thinking its my xorg config. My laptop is a Toshiba satellite M305D-s4830 with ATI Radeon 3100 mobile graphics card and I am running Xubuntu 10.10. Unfortunately I also broke the screen, so right now I am stuck with an external monitor till I get a new one.
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Feb 25, 2011
The problem come after i kill the Xorg using the kill command,and the screen turns to black without anything so that i can do nothing. The problem goes on after reboot
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Sep 17, 2010
I have installed VirtualBox and setup a Windows Vista host, initially with a .vdi of 10gb. That filled up quickly, so I added another 20gb secondary partition, after first trying to allocate a .vdi to a SCSI controller. Configured the drive in Windows (Computer Management), and all seemed ok. I shutdown VB, and rebooted my Linux host (openSuse 11.3). Now I keep bouncing back to the login screen, and can't login to Linux KDE, but can login to a console.I do have the following info:
/etc/fstab:
/dev/dis/by-id/ata-ST9250410ASG_5VG0B5VS-part5 swap swap defaults 0 0
/dev/dis/by-id/ata-ST9250410ASG_5VG0B5VS-part6 / ext4 acl,user_xattr 1 1
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I did see a message before, that I don't see anymore, that said it could not start NFS services due to missing entry in fstab. Another I'm seeing now is it couldn't start the avahi-daemon, no space left on device. This is odd, since I have a 200GB drive, with half of it left, only max 30GB set to VB. Here's my df -k output:
/dev/sda6 Use% is 100%
devtmpfs Use% is 1%
tmpfs Use% is 1%
/dev/sda7 Use% is 46%
So root "/" is mounted on /dev/sda6, which looks like it could be a problem, but why would this suddenly be a problem after working with VirtualBox? Could this be a matter of just freeing up space on /dev/sda6? Like the /tmp folder that's under "/"?
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Dec 22, 2008
I have a desktop running Hardy and till friday it was running good. Today is monday and I guess it has got monday blues like I get every monday at work.Today I tried to start it as usual but it just refused to go further than login screen. I just can not login. It just hangs it there. I do not know what has gone wrong. I did not change anything since friday and no one else uses it. Theres nothing in logs that could give any idea. It just hangs without any reason and is still on the login screen for ever. It does ask my username and password but then it does not go further.But to my surprise I tried logging in with root and it gave me expected error that system administrator is not allowed to login from gnome.
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May 7, 2010
When running Matlab (7.10.0.499 (R2010a), 64-bit (glnxa64)) on CentOS 5.4 using vnc, the Xvnc chrashes and this is logged in syslog:
# grep vnc /var/log/messages
May 5 15:37:47 hornsund kernel: Xvnc[7195] general protection rip:594c79 rsp:7fffa0085318 error:0
May 6 12:30:43 hornsund kernel: Xvnc[7003] general protection rip:594c79
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CentOS is up to date as of beginning this week. Doing a quick net check suggests HW-problem ( HP DL380 G6), but I've tested both memory and cpu(s) without errors. We also had the same problem on Scientific Linux 5.4.
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Feb 12, 2010
I just added 8 additional vncserver sessions(Xvnc) (using a well-documented procedure my predecessor used) to my RH Enterprise 2.4.21-4 (OK it went by fast) server. This brings the number of session listed in my /etc/sysconfig/vncservers file to ~32. Applications and terminals now seem to choose if they will open or not in the Xvnc session and not all sessions start at boot. I can start them manually, and they will work, but then they stop working properly. You can open a session, view the active desktop, click on menus and associated drop-down items to try and open apps, but the apps/terminals just won't open. Is there a limit to the number Xvnc Sessions that can be managed? If so, what is it? This happens whether I try to connect from a Winddows box or another Linux box.
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Mar 23, 2010
I have xinetd starting the VNC server.I'd like to leave the system at runlevel 3.Before xinetd starts Xvnc I want it to execute telinit 5.When there are no connections to the VNC port, it should drop back to runlevel 3.Is this possible? Would xinetd point to a script instead of the Xvnc binary? How would I switch to runlevel 3 once all connections dropped?
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Nov 17, 2010
I am running 11.3 with Remote Admin(VNC) turned on. This has installed TightVNC.I also have also enabled xinetd to manage the startup of new (incoming) VNC requests.All this is working just fine. So, what's the problem, you ask? Its that missing Shift+3 symbol. To reproduce, I run TightVNC (viewer) from a variety of clients (Win & OpenSUSE) to a number of OpenSUSE servers with xinetd managed VNC services enabled. The Xvnc sessions start and the clients display the KDE log-on screen. You will notice that in the username field that the sign is not displayed.
I have run a parallel VNC service (is it Xvnc or vncserver?) which gave me a twm session. It also is missing thesign, so I conclude that it is not KDE that is causing the problem?Secondly, a scan throughog file produced by the parallel VNC service shows:Code:KbdAddEvent: unknown KeySym 0x3a - allocating KeyCode 92 Has anyone any suggestions on how I can get my pound sign?
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Mar 2, 2009
I'm setting up my CentOS server and I'm having issue with the VNC server. I've set up xinetd services for connections all of which work individually bringing me to a login window. But only one will work at a time. If I kill the process or if I click the disconnect button I can make a new one but as they are terminal sessions (using wait) I wanted to be able to leave one logged in and have the option of another connection if I wanted to log on a different user.
Can someone help with the setting which would be to allow more than one connection? I know if you setup permanent session paths in vncserver this should work but (and I'm sure this has worked for me in the past) the xinetd method is supposed to open up sessions as required. I am working from a write-up for doing this in Ubuntu and aside from odd path differences the only noticeable change is the guide uses vnc4server rather than vncserver that comes pre-installed on CentOS. Should that matter?
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Apr 11, 2011
I want the last login information whenever I log in through FTP.
This is possible for normal console and SSH logins by configuring in /etc/login.defs file. But I am not able to view the last login information when FTP is used.
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Jan 27, 2010
I'm running Ubuntu 9.10 as a dual boot along woth Win PX Pro x64 bit. I'm new to Linux and I need help. For the life of me I can't seem to get connected to the Internet. I have cable high speed with a router and 2 laptops on the network.
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Aug 9, 2010
I'd like to know if network-manager applet could be run on gdm login menu. Cause i would like to get connected on my network to reach kerberos serveur to login. nm-applet on gdm
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Jun 27, 2010
we installed Ubuntu Server on a VPS machine then installed VPS desktop after reading this tut markus.revti.com/2009/08/installing-vnc-remote-desktop-on-ubuntu-linux-vps. I'm able to connect to the VPS but all i see is a grey screen.
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Aug 18, 2010
I have used Ubuntu since 7-4; I now have 10.4. However, in the last week I have been taken to the login screen three times. This could be potentially calamitous. Ctrl+Alt +Backspace have by default been disable since 9-4. There is no way I am pressing atl+Prtscr +K. I wonder if there is a new zap command in 10.4, and if so, how to disable it. I have never found the need to go back back to the login window. I am generally using the command line when doing this.
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Aug 4, 2011
yesterday i installed slim login manager on my computer (eee pc 1018p, ubuntu 11.04), and now it cannot get passed the ubuntu loading screen (with orange dots underneath) when booting. i tried booting into recovery mode and that didn't work either. i also left the computer trying to boot overnight and that didn't work.
basically, during this loading screen that should eventually bring you to the login screen, i can alt+tab to see the progress of the load. the progress is stuck on
Is there anything I can do from grub to remove slim?or, is there any way I can access my ubuntu partition and save all my files?
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Apr 15, 2011
I just bought this desktop from my friend and it runs win 7 and ubuntu 10.04. it worked very well the first two days until I changed the hostname of the system.
I did like: hostname myNewName
And everything worked fine. The problem now is when I start ubuntu and and reach username and password screen , I enter my password to login the screen becomes black and return me again to the screen where I put my password again. If I entered wrong password , the system message stating wrong password. On the other hand, when I try to run ubuntu from live-cd I can login easily and access my account.
My friend told me he removed Naultius package and reinstall it for some reason before he gave it to me. Note windows 7 is working properly.
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Feb 25, 2010
So I gave up on the mail server Idea as that was too much of a headache.
So I was wondering as I have registered waloshin.com with godaddy.com how can I get an apache hosted website to appear on that domain from my server?
Do I have to configure BIND9 to do so?
While going to http://whatismyipaddress.com/ it does say that my ip address is static: Assignment:Static IP
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Mar 15, 2010
System was fine with :Ubuntu 9.04 (had also installed kde )then....I wanted to try some change to gdm so i downloaded gdm while building it , it asked "PAM" libraries to be installed so i installed PAM ... but ignored the instruction to reinstall SHADOW (library i guess..),Now :on booting system i get login menu but i am not able to login , it says some critical error occured
1) install new copy of UBUNTU and remove old
ps :1) i can log into system through live cd
2) i can use recovery mode boot and log into terminal as root(startx is not working from this terminal..
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