Ubuntu Installation :: Unable To Return From Screen Blackout?
May 5, 2010
In a nutshell: If the computer goes to blank screen (set that way in screensaver settings) I can hit a key and get the unlock dialog. However, if I walk away for longer and come back, I can't get the machine to wake up. It is powered on, but nothing comes up on the screen. I can't get other terminals by using ctrl-alt-FunctionKeys, either. I CAN, though, ssh into the machine from my desktop computer, and that works normally.I've installed 10.04 off of a live CD onto my Toshiba Satellite A45-S250 laptop. I had originally tried upgrading from 9.10 on the machine, however it wouldn't boot after the upgrade. The live CD also originally wouldn't work for me until I used a work around that involved adding "i915.modeset=0 xforcevesa" to the boot command line of the "Install Ubuntu" option of the live CD. This caused the CD to install, and now the laptop works properly.
The computer boots normally now, but on shutdown, the screen does go all "squiggly" before turning off.This doesn't interfere with the shut down or start up, though.I can post whatever logs or such that would help, but would have to be told what is relevant here. I've been using ubuntu on and off on this laptop since sometime in 2005, and have never experienced an issue like this.
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Jul 2, 2009
Am I the only one to experience this? A couple times a day I get a screen blackout while I am working at my computers. This is happening both to my Desktop, whose specs you can read in my signature, and to my laptop. The blackout occurs randomly, lasts 1-2 seconds during which I get a black screen and, after that, the screen is restored to its previous state and everything runs fine for hours.... until it happens again. My laptop uses the default SGI drivers; my desktop the proprietary nvidia drivers from rpmfusion. It happens while browsing, editing code and even gaming. No messages in system log seem to be related to this.
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Dec 23, 2010
A MacBook Pro here (1151A, 1,2?, anyway a 2006 model). Ubuntu 8.04
When the power cable comes out, the laptop blacks out. I mean, it kind of goes into sleep mode, but only with the screen going dark. Anything running keeps running.
I know it is a bug, and I did my homework. I researched it. It usually comes to the point where you need to disable an "event" on "power cable out" in the power management settings of gnome. I did that, but the problem is still there.
I was turning off the computer before, loosing all my work, because there is no way to bring the display back. However recently I discovered two work arounds:
1) Restart X server: CTRL+ALT+BACKSPACE (you loose stuff)
2) FN+CTRL+ALT+F7 which takes you back to your desktop, you do not loose anything.
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Jan 7, 2011
What happened to my Fedora 14 KDE system! After messing up my desktop by moving all the option buttons at down of desktop (like the clock, start options button, network signal...), I tried to restore it finding the option that restores the bars, colors, and view mode. I clicked this button restore and a panic happened to the laptop. After that my laptop just restarted and when the system open again, gets to ask the initial password, it seems to open up and start over! And do not want to open only hint rebooting! Gave Blackout! What happened?
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Jan 13, 2010
I'm trying to get a return value from the command running within screen. I have tried
Code:
screen "some_command ; echo $? > retval"
but this refuses to write "retval".
[code]....
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Jan 8, 2010
I would like to disable the login screen when the computer returns from suspension and hibernation, so that it will automatically log me back in. I am using Ubuntu 9.10.When I come back from suspension, for some reason, my key board does not work in the login screen and I cannot type my password.
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Feb 19, 2010
Using AWN 0.3.9 on Ubuntu 9.10. AWN calendar applet returns the message "Unable to return calendar data from external source" when started. It is configured to read Evolution which is functioning normally.
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Sep 16, 2010
I use a laptop, and frequently plug in to a separate monitor or to a TV screen. I have it set up to to separate X screens. When using my laptop touchpad, I find that once I move to the other monitor or TV screen, I can't return back to my laptop monitor. My USB mouse, however, is able to transition from screen to screen with no problem. I am using ubuntu 10.04 but had the same problem with 8.04 before I upgraded. I have an NVIDIA graphics card, and use the nvidia-settings (which generates the xorg.conf file) to manage the screens. Here is my xorg.conf:
Code:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 1.0 (buildd@crested) Sun Feb 1 20:25:37 UTC 2009
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder58) Fri Aug 14 18:33:37 PDT 2009
[Code]...
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May 21, 2011
An ubuntu-11.04 laptop is set to turn on the screensaver after 5 minutes of inactivity, and power management is set to blank the display after 15 minutes of inactivity. When the screen goes blank, you're supposed to be able to move the mouse to return to your Gnome desktop. This works sometimes, sometimes not. When it doesn't, moving the mouse doesn't eliminate the black screen, although I can see the mouse cursor. ctrl+alt+del does nothing, neither do alt+tab, alt+esc or ctrl+alt+esc. ctrl+alt+f1-12 work as they usually do, so I can "sudo /etc/init.d/gdm restart" from one of the TTYs, or via ssh.
I tested just now with setting the screensaver and power management display blanking to 1 minutes. After a minute the screen went blank (backlight on), and then after a second or two black (backlight off), and moving the mouse returned to Gnome as it should. So I don't know why sometimes it doesn't. Two questions:
1- Which program can I run, or which service can I restart, to return to Gnome without having to kill gdm and lose all open windows?
2- What's causing this?
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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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Jul 16, 2010
So I was trying to remotely access my XP laptop from my Ubuntu laptop. I read up on tsclient and rdesktop and tried both methods. For example, in the terminal, I typed:
rdesktop <host ip>
However, this came back with the following error:
autoselected keyboard map en-us.
ERROR: <host ip>: unable to connect.
After a bit of internet searching, I found the solution to the keyboard problem. I typed:
rdesktop -k en-us <host ip>
This yielded the following error:
ERROR: <host ip>: unable to connect.
No clarification, no explanation. nothing. Does anyone have any ideas?
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Mar 30, 2010
Ubuntu wont detect my screen (mag bf22) correctly..that causes poor resolution (1152*864 max) my screen is able to at least a 1600*1200 resolution (witch i use in my windows boot ) is there anything i can do in order to fix or increase the resolution ?.. i have already installed the drivers correctly
asus p7p55d
intel core i5 750
nvidia geforce 9500gt
wd640GB black caviar
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May 22, 2010
I could find on the net to fix the screen brightness keys and get them working so I could increase the screen brightness. Nothing worked.For most or many people, some of the suggestions will work fine. For those of you who can't get them to work and are stuck with Ubuntu 10.04 on the NC20 with a dimmed-out screen, I have a quick workaround:
When you boot and get to the BIOS password prompt, use the function and up-down array keys to control the brightness there. The screen brightness will be carried through to Ubuntu. You might be able to do this at the GRUB prompt. The point is that the BIOS handles the screen brightness before Ubuntu, so it just works.
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Oct 11, 2010
I'm trying to get a fresh install of Ubuntu 10.10. I've used unetbootin to write the image to a usb flash, but every time I try to boot from it I just get the burg splash screen. I've changed the boot order in bios and so on, but it starts burg all the time. The image md5 is also right.
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Apr 27, 2011
This happened when I was trying to install Ubuntu 11.04 from a disc, when I boot from the USB or CD I create of Ubuntu it gets past the selection menu and then I get stuck at this screen, keyboard is completely frozen, no HDD activity light or anything. This happened the same way when trying to install Ubuntu 10.10 This is an ASUS g60jx laptop, I would have assumed this was fixed by now, is their a special graphic mode I have to enter when installing?
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Sep 17, 2010
I'm a italian boy that have a problem with ubuntu. I install ubuntu on my netbook with wubi but now I can't return on windows. When I restar my pc i see GNU GRUB version 1.98-1ubuntu6
I select the part for to go in XP Windows NT/2000/XP (loader) (on/der/sda1) but I see the black windows with the script error: unknows command 'drivemap' Try (hd0,0): NTFS5: And I return to black windows that allows me to choose the part Ubuntu.
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Dec 11, 2010
I have installed ubuntu on a specific partition. installedwindows and mandriva on two other partitions. ow i would like to go back to ubuntu. is there any way i can do this unfortunately i have no bootloader installed installed on the ubuntu partition..is there any way to install[ a bootloader on the mbr or elsewhere to retrieve the ubuntu installation. preferably without live cd
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Jun 15, 2011
I dual boot with XP, My upgrade to 11.04 has been two weeks of FUBAR. I want the 10.04 LTS again. With the 10.04 disk in, I get to the point of "Prepare Disk Space"; it shows XP-pro 81Gb and Ubuntu 11.04 75Gb. There I must choose side-by-side, Use Entire Disk, or Specify partitions Manually. My Question/Problem> The new 11.04 kernel seems so incompatible with my system that I wonder if I need to delete or reformat. Am I likely to have success if I just tell it to do side-by-side.
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Mar 12, 2010
I was able to boot up the live CD and install the OS to the hard disk. *Single boot.After I rebooted, the system loads up to the Ubuntu splash screen and will "eventually" move along. The problem is that once it moves past the splash screen, it starts blacking out the screen. It looks like the screen turns on for about 10 seconds and then off for another 10 seconds repeatedly. The screen blinks like this indefinitely.This is my first attempt at installing and or using Linux so I am an uber n00b.
** Also, I am able to ctrl + alt + f1 and get to the terminal so i should be able to run any commands without any trouble.
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May 1, 2011
after managing to install ubuntu onto a Samsung n220 netbook, when I boot up im presented with just a black screen. I have tried to follow the sticky [URL] but I am slightly lost. I can press CTRL ALT F1 and get a login prompt - tty1. The commands from the sticky do not seem to work or do anything, and certain ones listed come back with a "Command not found" error.
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Jun 3, 2011
Upgraded online from 10.04 to 10.10 this morning....went OK I think! Was offered option to upgrade further to 11.04...and went for it!! Returned later to a blank screen.....unable to wake the machine....no disk activity Now have some function via a live CD......any thoughts on how I can proceed from here? I would like to persevere with the 'upgrade' route, as a fresh install will result in much loss of files
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Jul 20, 2011
Greetings beloved Linux users. I had grown accustomed to using Ubuntu on my laptop for the longest time when a nasty virus screwed up my boot sectors on my HP Desktop. I finally bought a nicer computer with Windows 7 back in November of 2010, but I'm having difficulties trying to install Ubuntu onto it. Here are some specs:
Model: Asus CM5571 Desktop PC 64-bit
Processor: Intel Pentium E5400 / 2.7 GHz Dual-Core (yes, a Pentium)
RAM: 6 GB DDR3 SDRAM
Graphics: Intel GMA X4500 Dynamic Video Memory Technology 5.0
Sound Card: Intel HD Audio
I'll be willing to provide more if needed So, I started off trying to load the Ubuntu 10.04 CD I received from the free shipping service off of the Ubuntu website, and that would not boot. It seemed to hang after trying to scan my 500 GB external. So I unplugged that,rebooted, and it seemed to hang on my USB hub. I unplug that, rebooted, and it hangs after trying to making "calls" or something to devices. Not sure at all what is going on there.
I figured I might need a 64-bit edition so I go to the website and burn an ISO of Ubuntu 10.10 64-bit. The same thing happens. I then begin experimenting with the boot options (acpi=off, etc.) and none of that seems to work either. Out of desperation, I find an old 8.04 CD and try to boot from that. It gets past the loading bar but boots into BusyBox only.
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Dec 7, 2009
After the 5.4 OS sits with no user activity for 15 or so minutes, the screen goes black. This is anticipated, but no key combination seems to bring it back to life.
I discovered that Ctr+Alt+BackSpace ends the login session and takes you to the login menu. This is better than nothing but it isnt exactly what i had in mind.
Does anyone know how the key combination to return to the current user session, or how to disable the screen entirely.
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Apr 20, 2009
Trying to install FC10 on an older Dell GX150 machine, and I get to the point where the graphical install app loads, but I am not able to see any text on the screen, other than the back/next buttons, and when I click on next, I can see that it goes to a new screen where it looks like it's asking for some text input, but I can't decipher what it's asking for, and if I try to type in the box, nothing happens.
I think I read somewhere on here about using a different boot option to get FC10 to work in a Virtual PC, but not sure if it would apply here (and can't seem to find that thread anyway!) I am booting off the FC10 DVD, and can get to the menu to install/upgrade, rescue, boot locally, or test memory. If I hit TAB, I can edit the boot option - I just need to know what to put in there to get this to work!
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May 15, 2010
I installed a bunch of updates this morning and am encountering the following problem since I restarted after that:
After I login, the screen will flicker once and then return to the login screen. I assumed that something must be wrong with my graphic settings (as so often). So I logged in via Ctrl+Alt+F3 and checked the xorg.conf and Xorg.0.log for erros. Everything seemed all fine. I also ran
Code:
sudo apt-get install --reinstall gdm && sudo dpkg-reconfigure gdm as recommended in this thread. Also no success. I ran "sudo service gdm restart". That showed me at first a dialog box saying that my graphics card and input device settings could not be detected. I then chose to have a new configuration for this hardware created. This only resulted in the screen flickering for longer when I logged in again and then returning to the login screen.
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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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May 12, 2010
I can't seem to get Ubuntu to run on my old Dell Dimension 2300. It boots to a purple screen then it goes to a black screen with a load of writing nothing else happens after this screen. [URL] Could someone advise how I can get it to work?
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Jan 1, 2011
I was using irssi in screen but lost connection. After I ssh'd back in to the server, I can no longer attach to that screen. screen -ls shows that the screen is already attached. I tried screen -D to force detach it, and it said detach but screen -ls still says it's attached. I tried screen -x and it just hangs there.
[sub@server ~]$ screen -ls
There are screens on:
4033.poe (Detached)
7728.irssi (Attached)
2 Sockets in /var/run/screen/S-sub.What can I do now?
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Jul 7, 2011
I'm trying to fix this screen problem I continue to have (an example: in Evolution, its like my screen is too small to see everything, I have to scroll over down or over, then the window moves over and pulls me back to original spot. I've tried to change the screen resolution and that actually makes things worse. The screen problem is very irritating and I don't know why its happening. I've been using Ubuntu or Mint for years and have never had this problem.
Also, a similar problem but nowhere near as annoying: the sides of either side of screen are black. I can't get the monitor to be completely filled. I went to Intel's website and they have a few drivers compatible for linux (at least that is what they are saying).
I'm using Ubuntu lts 10.04 lucid lynx
2.6.32-32-generic
mscatamaran@mscatamaran-desktop:~$ lspci
[code]....
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Sep 21, 2010
I`m having a problem with upgrading my Fedora 11 to either Fedora 12 or Fedora 13. When i start preupgrade, it lists all packages that need to be upgraded, but then it ends with the message that none of the mirrors can be found. I`m seeing the messages in the console, and indeed all the mirrors return "HTTP Error 404: Not Found". Any idea how to change this and eventually do an upgrade?. I also downloaded the Fedora 13 DVD, and tried to upgrade that way, but it never showed me the window which must give me the option to upgrade instead of doing a fresh install. The explanation in the official website clearly shows that this window exist, but after several tries with the DVD I did not get it.
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