Ubuntu :: Spontaneous Logout In Natty - Screen Goes Blank
Apr 30, 2011
However, there are one or two stability issues. In particular, over the last couple of days, I have seen two occasions where my screen suddenly goes blank, and after about 3 seconds I am presented with the login manager. I can then log in, and the desktop works fine again. Of course, everything I was doing is gone... So, where do I look to find what is causing the problem? I'd like to find out and either fix this here or submit a useful bug.
View 9 Replies
ADVERTISEMENT
Sep 1, 2011
I just did a fresh install of natty, installed a few programs along with the ati catalyst control center.
I am having serious login issues, here is what I do:
I am at the login screen right from start-up, type in username and passward and hit enter, screen goes blank, it appears I am logging in, ubuntu plays a sound and puts me back at the login screen. I do not get an "Authentication Failed" error like I would expect. Unable to login as myself or as root.
However, I am able to login if I select the "safe mode," I am not able to login under the normal mode or the ubuntu classic modes.
I suspect that this issue has to do with the ati proprietary drivers, after playing with the settings for a while in safe mode I am now able to login to the normal natty mode without any apparent issues.
Here is what I changed in ati catalyst control center to boot into natty mode:
I disabled the Xinerama and Tear Free options.
Under the 3D settings, I selected the "override application setting" for all the 3D settings I could.
I believe I still have some display issues as I am unable to drag windows from one display to another, my mouse is able to move just fine across displays though.
I also found that enabling Xinerama prevented me from logging into the ubuntu and ubuntu classic modes, but I was able to login to the ubuntu with no effects mode.
View 3 Replies
View Related
Jun 2, 2010
When there is one user, and that person "Logs Out" instead of going to a screen where another user can choose to Log In - the computer goes to a blank screen; No mouse movements, mouse clicks or keys will reactivate. I have to reboot the whole computer.
Is there a way to get the computer to go to a 'switch user screen' when one user chooses to log out?
View 6 Replies
View Related
Jan 2, 2010
My Fedora 10 will no longer give screen res above 800x600 (60hz)I routinely change screen res (due to having two different monitors) but I made no hardware changes immediately before the problem began. In other words: the hardware was the same as it had been the day before the problem arose.I assumed a hardware fault, so I tried with XP. Weird: I can set higher resolutions there without problem.Any idea why this happened and how I can fix itBTW, I've been a Linux user for some years, but I would describe my skill level as: 'novice.'
View 2 Replies
View Related
Apr 25, 2011
i have installed Ubuntu 11.04 beta release 64 bit and frequently updating with latest updates(allmost all). now i'm having some problem, while i'm login to GUI interface it shows a blank screen(seems logging) and in the next screen it shows login screen again.(Immediate logout). i found some messages from syslog like below:
acpid: client 2889[0:0] has disconnected
acpid: client 2889[0:0] has disconnected
acpid: client connected from 3034[0:0]
[code].....
View 2 Replies
View Related
May 9, 2010
I am having the same problem, as soon as X tries to load my screen just goes blank. I have an ATI Radeon 9550. At first I tried switching between VGA and DVI as well but upon ruling that out, I switch to my on-board video card and that is working thus far, but I'm trying very hard to figure out a way to be able to switch back. Anyways I'll check back in later on if I have any new information I will post.
View 3 Replies
View Related
May 25, 2011
I upgraded to Natty at the beginning of May and Unity has been working fine until about 4 days ago. Around then, then I cold boot and log in, Ubuntu starts in "Ubuntu Classic" desktop. If I log out then back in, Unity starts as expected.In both cases of my logging in, Ubuntu Classic is not selected - Ubuntu is, which should start the UI under Unity.
View 7 Replies
View Related
May 13, 2011
This issue was resolved in Lucid and Maverick; now it's back... This happens after only 2-3 minutes, even when the screen saver is set to activate after 20 minutes. I believe this has something to do with ACPI power management.
View 2 Replies
View Related
May 17, 2010
When i use my computer (whether it's going online, typing, playing a flash game, or coding) I get these "Black Flashes" that are becoming longer and more frequent. A "Black Flash" is when my computer screen turns blank (but you can still see the backlight) and i have to press the NUMpad ENTER button, shake my mouse furiously, or click my mouse, which sometimes causes undesired actions, but gets me my screen back. sometimes the Black Flashes last a milisecond or 5 seconds or i have to hold the power button and restart because it won't come back on.
Specs:
Toshiba P205-S6337 Laptop
Ubuntu Karmic Koala
2.39 GB of RAM
[Code].....
View 9 Replies
View Related
Jan 12, 2011
If I try to logout or switch user, I end up with a black screen and a blinking cursor. I can type and the letters show up on the screen but don't do anything. I can do Ctrl-Alt-F1 and then "sudo service kdm restart", but I'd rather fix the underlying problem..Google gives several pages with similar problems but they all seem pretty old (2007), and they don't seem to apply to 10.10.
View 8 Replies
View Related
Mar 12, 2011
Dell Latitude D610 Laptop on a docking station running Ubuntu 10.04 Have 2 monitors, monitor 1 using DVI, monitor 2 using VGA. Extended desktop working as intended out of the box...was not successful getting the ATI Catalyst Control Center to work, but no big deal.The big deal is, when I log out, my screen on the DVI monitor scrambles, and you cannot see the login prompt at all. I get the little drumbeat SFX, and attempt to press enter and blindly enter password, but no login. The VGA monitor remains blank
View 1 Replies
View Related
Sep 8, 2010
Every time me or another user uses the "log out" option were faced with a black screen that does not go away, unless the computer is restarted. i've left it for an hour thinking it might have just slowed down or something but that was a no go, and it happens each time you try to use it. the strange thing is if the black screen is up programs still run. i have a media server running most of the time and i have no problem accessing it while the black screen is showing.
Another problem im having is that sometimes when a user logs in they have no sound. the sound icon is showing that no sound is installed, but when another user logs in there is no problem and sound works fine.
Lastly i dont know if this is a feature or a problem. the first user to log in will always have control over the network connection. for example if my mother logs in first the icon to switch connections will show up on the top of her screen and she has full access to what connections she wants to use, also her account is just a basic user account. now when i log in i wont have the network icon on the top of my screen, and my account is the main admin account.
View 3 Replies
View Related
Sep 14, 2010
So I have Ubuntu Lucid machines about 20 of them. Configured via ldap authentication. I seem to be running into a rather strange logout problem. Whenever users click logout they're logged out, however after that all i get is the background screen with the cursor. The cursor is able to move, but no login screen.If i go to a terminal window alt+f1 and do a service gdm restart, then the login screen goes back to normal.
View 3 Replies
View Related
Jul 27, 2010
I just installed F13 on my netbook (Toshiba NB205). Whenever the screensaver locks the screen (manually or due to a timeout), the unlocking of the screensaver causes my account to logout and I'm left at the GDM login screen. I've been seeing that the "work around" is to turn off the screensaver lock.
View 2 Replies
View Related
Jun 24, 2011
If I logout on terminal, old contents are still possible to be read. I was trying to get it to work using pam_exec, by adding
Code:
Code:
This however didn't do antyhing. How to make it work using pam? I know that i can simply add some control codes to /etc/issue to get basically the same effect, but i wanted to do it using pam.
View 1 Replies
View Related
Jan 7, 2010
After updating my Slackware-Current (there was kernel and glibc package updates), I just get a black screen with a blinking "_" in the top-left corner when I logout.
I checked /var/log/kdm.log and found these errors:
Code:
I've found a workaround: uncommenting "TerminateServer=true" in kdmrc.
View 14 Replies
View Related
Oct 17, 2010
As a normal user I have activated the functions of the Quit applet, i.e. Logout, Shutdown and Restart are active buttons. I am able to restart or shutdown, no problems. But when I use the Logout button I don't get logged out, just returned to the login shell & I am still logged in as my user. I don't have a display manager installed and I do NOT want to use a display manager such as XDM or GDM. How do I get the Logout button to actually logout the user? It appears I am only getting logged out of the x-session, but I want complete logout.
View 6 Replies
View Related
Jan 12, 2010
i installed Xubuntu desktop and decided i didn't like and uninstalled it.. but it hijacked my boot screen and login/logout screen. i restored the boot screen but i can't find out how to restore the login/logout screen.
View 9 Replies
View Related
Aug 26, 2010
I have Lucid setup for multi user. Whenever 2 users are logged in and one logs off, it freezes on a black screen. It looks like it logs off OK and is on its way to the main login screen but never gets there. I found some older posts describing this problem but no solution. I tried to post to that thread but got a message saying I was not permitted. I am new to Linux and am struggling to figure out how to problem solve issues in Ubuntu.
View 1 Replies
View Related
Jan 22, 2011
I am using KDE4 on 10.10 64-bit.
Only ever use the KDE desktop so completely removed XFE and the rudimentary Gnome left behind on the install.
Not a desperate problem just an annoyance.
Everything works fine, except if I logout the next login screen is using a really tiny font and I can't seem to find anywhere to change it.
The DPI must be about 10, as I can't even read it when blown up on my projector.
View 1 Replies
View Related
May 3, 2011
I'm trying to run Slackware 13.37 64-bit in a VirtualBox virtual machine. My VirtualBox version is 3.2.12. I had to disable compositing to keep the X-Server from reporting a segfault.Now the problem is that on logout from KDE I get a completely black screen. I can switch to a console session and type commands to get the login screen again.
telinit 3
telinit 4
I tried editing "kdmrc" to add the line "TerminateServer=true" but it had no effect on the problem.I had this working with Slackware 13.1 at one time, but I can't seem to get it working properly now even without desktop effects.I'm trying to avoid changing my VirtualBox software since each version seems to just introduce new and different bugs. The 4.X versions are not yet very stable.
View 1 Replies
View Related
Mar 30, 2010
Recently I've been having an issue where every now and then, all of a sudden fedora logs me out and takes me to the login screen.
All my unsaved work is lost and I have to log back in again.
Is there any way to diagnose this problem and figure out how to solve it?
View 1 Replies
View Related
Jan 17, 2011
I'm using Slackware 13.1.
Whenever I logout of KDE and go back into console mode, the characters at the console screen become unreadable gibberish. Is anyone else having this problem?
I can ctl+alt+F? to work at another console screen, but the ctl+alt+F1 screen remains unreadable until I reboot.
View 4 Replies
View Related
Dec 26, 2010
Is there a known problem with the Lubuntu 10.10 image here? I have downloaded it to two different computers, then burned the images to two different blank CD's (different brands) and neither loads. Both only get as far as the Lubuntu menu, once ENTER is pressed at that point to load the LiveCD, a blank screen eventually appears with a flashing cursor at the upper left of the screen, that's it. They were both burned using the slowest burn speeds available.
View 9 Replies
View Related
Jan 26, 2011
The day started as usual until I got the very bright idea to install Ubuntu. A new OS along side W7, that sounded great. I checked some guides on the Internet, it was all very straight forward. Install it and Grub will show you the OS:es when you boot up. I installed Ubuntu, rebooted. After the BIOS messages the screen goes blank and my screen on-button begins to blink, as if trying to find a signal, I press enter, it reboots instantly. After BIOS messages I get to a screen that says "GRUB error: uknown filesystem grub rescue>"
I've looked through everything here and nothing works. I've tried to fix the mbr-thingy using Windows Repair and even though it says "one partition was updated with new boot-thingy" when I reboot, I get into that very same grub rescue. I think my setup has something to do with it. I run RAID0 (2x360Gb hard drives), first having C: at 50Gb and then the rest as F: for programs and such. What I did was that I shrunk the F: part and then used that as partition for Ubuntu. Also please have a look at these screenshots, my partitiontables and such seems completely wacky to the raid: Where should the boot-loader go? I'm very, very new at this. I've had Ubuntu Netbook remix on my netbook for a time but still treat me as an utter beginner.
View 4 Replies
View Related
Oct 9, 2010
I'm trying to test out using xubuntu 10.04 on my one computer and keep getting a black/blank screen after selecting the 'try' menu option.Is there a way to fix this?I have tried some of settings via F6 with no luck.
FYI -The CD works fine as I have tested it on other machines.The version I am trying is xubuntu x86 (although I have tried ubuntu 10.04 x86 with similar results).I can Alt+Ctrl+F1 fine and get to the cmd prompt
View 1 Replies
View Related
Jan 14, 2011
I fixed this issue on 10.04, but just recently (1 hour ago) upgraded to 10.10 and am having the same issue. Machine boots fine, but the screen is blank for most of the boot, and plymouth is up for about a half second before I get to the login screen.I've tried searching the threads, but for the life of me I can't find the solution and can't remember what I did to fix it on Lucid.
View 4 Replies
View Related
Apr 15, 2011
like any other Linux newb, I came to Ubuntu because my Windows crashed one time too many. And I chose Ubuntu because "it just works". But these past few days that hasn't been true. I'm posting this from a netbook with Ubuntu, and am having no problems whatsoever, but normally I use an Acer Aspire 5920G laptop. I'll include the specs as written on the sticker:
* Intel Core 2 Duo processor T5250 (1.5GHz etc)
* Up to 1024 MB Nvidia Geforce 8600M GS Turbocache
* 2 GB DDR2
Let me know if you need more details, and I'll add them later. Now, what happened was I clicked "hibernate" while leaving Firefox open. (I've done this hundreds of times, no problem) And when I went to turn it back on the next day there were weird graphical glitches in the loading screen, and it booted to the "tty1" prompt screen. I did a lot of googling and found quite a few posts about it, but the solutions either didn't work, or I didn't understand them. After trying several different suggestions from this forum and others, I managed to delete the graphics drivers. That enabled me to boot in low graphics mode, and naturally, I tried a whole bunch of things to make it work properly again. That only made it worse. Now it went straight from the loading screen to just blanking out and turning the display off. So, I tried new things. Over and over. The weird thing is even when I disconnected my harddrive and ran from a Live USB, the problem persisted. Could there be an issue with the graphics card itself? Anyway, after reconnecting the harddrive I tried to boot again. And it suddenly worked. Even HDMI to my bigger screen worked.
[Code]...
View 1 Replies
View Related
Jul 13, 2011
I have a problem with garbled graphics after resuming from hibernate or logging out (when the screen blinks and goes back to the display manager). It only occurs when I do either, about half the time. What happens is the edges of everything "bleed" horizontally (left to right) in red and green colors and black text on a white background becomes entirely unreadable (but white text on a black background is readable and just looks a little bolder). If I shut down or restart the computer (softly) when the screen has garbled, then it will freeze and not even the SysRq keys work (I have enabled it in /etc/sysctl.conf). Then the only thing left is to do a hard restart (in which case there's a voice saying "System failed VGA test" before BIOS/GRUB loads) or poweroff. Powering it off and then starting it again works fine. I did a google image search and this is sort of how it looks when it freezes: link
Once the screen has garbled (but only if it hasn't frozen) I can use SysRq to issue S E S I S U O to shut it off and then power it on, and that works: then I get a non-garbled command line after sigterm and it shuts off and starts up properly. If I issue B instead of O (to restart) I get the "System failed VGA test" on boot (but it doesn't freeze when shutting down). Hibernation is easy enough to fix by just turning it off (it's not a laptop so I don't need it anyway), but it still happens sometimes when I log out. So as long as I never change users the system works perfectly and this never happens. I've tried GNOME, Xfce4, OpenBox without any DE, gdm3 and SLiM and the problem persists in all of them.
Some system details:
Debian Squeeze i386 (using only software from the stable main repository)
Kernel: 2.6.32-5-686
Video card: ATI Radeon 9600SE (using the preinstalled open source drivers)
Motherboard: ASUS P4P 800-E
By the way: sometimes when it's in the process of shutting off (when the display hasn't been corrupted), after it kills all graphical applications, I can see that the CLI text gets the garbled look, but at that point the poweroff works without freezing. This is the most similar sounding bug that I could find: [URL]. Unfortunately I can't find a solution to it, and most people who have similar problems seem to get either the garbled graphics or the freezes, but not both. Also: how safe is it to keep shutting off with SysRq to recover from this? Can I get disk errors?
View 3 Replies
View Related
Dec 22, 2010
I have been running 10.04 quite successfully, when I upgraded to 10.10, I have a problem with the newer kernels. If I let it boot into the latest one 2.6.35-23, I get the Ubuntu 10.10 splash screen for a second then a blank screen, same with 2.6.35-22. I have to run with 32-25 to get it to load the gui.
I have an AMD Sempron 2800, 1.6GHz pc, but I'm not sure if it's running 64bit.
View 7 Replies
View Related
