Ubuntu / Apple :: Screen Accidentally Blacked Out And Inaccessible
Apr 20, 2011
One of our home school students, toying with the Power Management panel on our 700mHz iMac since there are no brightness control keys that work on it, set it for full display blackout and now can't get the screen back since we can't see the controls. We turned the machine off and on but his account keeps blacking out on log-in though it doesn't happen with other accounts. How can we fix this to retrieve all his work?
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Jan 16, 2010
I'm on the latest Ubuntu OS on my netbook trying to make a USB Startup Disk. I have a 1GB USB and a 500GB hard drive plugged in to then netbook. I run the USB Startup Disk program, and it tells me I need to format the USB drive. Okay, so I press format, only to realize that I'm formatting the 500GB hard drive.However, when I pressed format it give me an error saying the disk could not be mounted. I did something on Disk Utility and now I have a FAT32 system on the hard drive with nothing in it. Now my ultimate question is, am I able to recover the data that was on the hard drive?The hard drive was formatted in HFS+, it was a Mac-formatted hard drive. Will I need to use a Mac in order to try to restore my files?
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May 20, 2011
when I move any window in unity it often goes full screen by accident.
Is there any way to disable this annoying behavior?
eg. grab a window, move your mouse (and the window) up until it touches the panel, and your window is full screen. This happens several times in an hour.. really annoying.
I prefer using F11 or double-click to archive the same thing. (doesnt happen by accident)
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Oct 27, 2010
Posted this in the wrong section so I'm reposting it, is that ok? I installed lxde and logged out and switched to it, but my internet wasn't working (but that's a different thread after I fix this, I was going to try installing wicd) So I tried to go back to gnome, I misclicked and accidentally started a different session. I think it said openbox/gnome, all I get is a blank screen with just the desktop background. It's set to automatically log me in, so when I restart my computer it goes back to the blank screen. How do I get back to the login screen?
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Apr 24, 2011
I got macbook pro 5.1 recently upgraded to 11.04, all works out of the box! However when I watch movies or play a game from time to time I observe a horizontal line in the upper part of my screen which I believe is a screen tearing.Depending on a movie player this effect is more or less visible.nvidia propietary driver enabledvsync enabledcompiz settings adjusted (refresh rate ->60, vsync)nvidia-settings -l is loaded with the systemMaybe it's not a huge problem but everything works fine under osx
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Jun 30, 2010
I did a clean install of Lucid about three weeks ago. All fine and dandy except a couple of minor quirks that I can live with if not resolvable since everything else is flying! After I installed part of the Wireless icon had a small vertical black strip over it blacking it out. Didn't affect fuctionality but looked funny. If I reinstalled the Icon from " add to panel" and the associated indicator applet the missing chunk was one. But it would always reappear after boot up. Then after a few days the problem vanished and has never come back!
Now though I get this: Immediately after boot up the field in the top panel that contains the wireless icon is surrounded by a dotted line, like its a dotted square around it. Also in the bottom panel there is a dotted line around the field for the Windows List" indicator button even though at that point there's nothing minimised to the bottom panel. This phenomena only occurs immediately after boot up and as soon as I click somewhere on the desktop or the wireless icon they vanish and stay gone I'll fix it if I can but if not I can cope.
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Jan 6, 2010
Since I updated to 9.10 I've had 2 problems with display.(1) The notification bubble is blacked out.System notifications,IM notifications, network notifications...none are visible. (2) Some dialog boxes (not just OO) have unreadable text. It happens for OO every time. (I am running an older IBM Thinkpad with a 1.8 MHz CPU and 1GHz of ram.)
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Oct 21, 2010
I just updated to Ubuntu 10.10 and when i opened open office all the text is blacked or smeared, it kinda looks like someone took a pen and scribbled over the text. If the test not blacked out if you scroll over the text it is the blacked out.
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Feb 16, 2011
I had Ubuntu10.04, using inspiron1545 and running on an external monitor,all of a sudden, the lower quarter of the desktop got blacked out,i had no choice but to upgrade to 10.10.Today i closed the laptop lid and now the lower 1/4 of the desktop is blacked out.again.tried restarting,changing monitor configuration but no result.i have put an image to better show,as you can see the lower 1/4 before taskbar is just black. all my compiz settings have gone and login works with no problems and starts gnome then the bottom quarter blacks out 3 seconds later.
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Aug 10, 2015
Long story short, been using Debian for 2+ years. Recently did a Clean install of Jessie (which worked fine). I wanted to test out Ubuntu 14.04 so I distro hopped for a couple weeks. Now I'm back on Debian Jessie (did a clean install again).
Problem is: Everything works fine, but after the computer runs for a while (like 2+ hours) any new program windows that I open are completely blacked out. Just like opening a big square black tile. They are unusable until I restart the computer, then everything works fine again for another 2+ hours.
I've never had this problem before, not even with my previous clean installation of Jessie. This time I installed it in the same way that I did the last time.
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May 29, 2010
I've installed Ubuntu Server and set it up 3 weeks ago, it was working fine until today. Just recently, someone IM'd me @ jabber saying that none of services running on it work (http, ftp, svn, jabber, ssh). So I've checked stuff on my PC, and everything seemed to work well (at least for me). I've tried to see if http works via proxy, but it seemed like no. I've called my ISP, on their side everything looks fine, server was accessible via their machines too (well it's obvious). I asked them to see if other networks (TP, GTS Energis, Energis) could connect to it as well, the answer was - no. (I don't think it's firewall, since I didn't even had time to set it up...)
(hq.lime-entertainment.com). Running Ubu 10.04 LTS Server
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Sep 28, 2010
I get the error: Sorry, could not display all the contents of "trash": Operation not supported.Of course I know I can remove all the contents of the trash directly via ~/.local/share/Trash/ however, I'd rather have Ubuntu the work the way it was intended.I've tried opening Nautilus using the gksu command, but the problem persists.As per another post, I also tried a fsck on the partition, and no errors were returned.
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Jan 13, 2010
When I recently upgraded my desktop to Karmic, my postgresql 8.3 no longer starts. I've got data in 8.3 that I need, but now no way to access it. Karmic upgrades to Postgresql 8.4, but leaves 8.3. Problem is, I can't seem to start 8.3 no matter what I do (there's no error message. I even tried removing 8.4 entirely--without effect. When I try to start 8.3 (using command line or boot-up manager), there is no error message, either in system logs or in the postgresql log file. There is also no indication of an active postmaster in ps aux or anything listening to postgresql ports in nmap (for that matter, seems there's nothing listening even with 8.4 activated).
I could try to 'upgrade' my data cluster to 8.4. Never tried that before and am concerned about possibly losing data. Also, I made a load of tuning adjustments to 8.3 that I'd have to replicate with 8.4. I'd rather stay with 8.3, if possible. There are also two pieces of software, postgresql-common and postgresql-client-common, that presumably allow one to run two versions of postgresql simultaneously. Maybe this stuff is even the source of my start up problems. No idea where to learn how to use this software, and, esp., whether this would solve the 8.3 start problem.
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Feb 25, 2010
I have a DLink 323 NAS with a USB port for a printer. Im trying to setup the printer. When I get to the part where I have to enter the username and password for the NAS, no matter what I put in for a password and username, I get the same error message (see attached screenshot). I can not get my network printer to work because of this.
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Dec 18, 2010
I'm running skype on my Debian squeeze with kde 4.4. If I minimize it, on a task bar it remain for a wile, and then disappear. I know it's still working because some times I see some message (user x it's online, user y it's off line etc etc) and if I type:
ps -aux | grep skype,
I receive the PID number. But I'm not able to bring it accessible in my desktop.
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Nov 12, 2010
why i can't access the Tomcat6 default website after i do the install ?
Code: ERROR The requested URL could not be retrieved While trying to retrieve the URL: http://10.2.3.189/
The following error was encountered: Connection to 10.2.3.189 Failed
The system returned: (111) Connection refused
Code:
Setting up authbind (1.2.0build3) ...
root@SSV:~# /etc/init.d/tomcat6 restart
* Stopping Tomcat servlet engine tomcat6 [ OK ]
* Starting Tomcat servlet engine tomcat6 Using CATALINA_BASE: /var/lib/tomcat6
[Code].....
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Jun 20, 2010
I have a Ubuntu - windows 7 dual boot (in two partitions of the same HDD) desktop PC for a few months. I was learning terminal commands and, although I don't think I made such a big mistake, but the fact is that the a very strange thing happenned: "Preferences" and "Administration" from System disappeared as it did also "Applications". After rebooting the same it remained the same. No big deal, I thought, because I haven't yet saved any important work on Ubuntu. So I reinstalled Ubuntu. Done that everything was nice until I booted Windows... Since then I counldn't start windows after GRUB due to:
Status: 0xc000000f
Info: The boot selection failed because a required device is inaccessible."
Windows Live DVD Repair is useless. I've tried CHKDSK utilities, no result. Windows partition in Ubuntu's Disk Utility is OK but I can't access the files (all "broken links"), just can explore a few directories after which I find myself entering the same folder endlessly. I wanted to repair windows boot or at least recover some important files in Documents and I thought I had backup (but turns out that, for some reason that I'm still trying to understand, they aren't...).
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Jul 7, 2011
I installed Ubuntu Server because I want to learn Linux and I want to learn about servers. I did a newbie tutorial and then shut down. When I booted up today, the files in my home directory were replaced by Access-your-private-data.desktop and readme.txt, but I have no idea why. I followed the instructions in readme.txt and typed ecryptfs-mount-private. It told me
INFO: Your private directory has been mounted.
INFO: To see this change in your current shell:
cd /home/rmob
But if I do ls /home/rmob, it still shows me Access-your-private-data.desktop and readme.txt instead of the files I created there yesterday. Every time I reboot, it tells me
keyctl_search: Required key not available
Perhaps try the interactive 'ecryptfs-mount-private'
If I try ecryptfs-mount-private again, it still tells me it has mounted it, but still just shows me those same two files. Googling about this tells me this means the directory got encrypted somehow. I tried typing touch ~/.ecryptfs/auto-mount which I found in this tutorial, but it didn't make a difference and I can't find any other solution anywhere.
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Jun 2, 2011
I can't get even a simple NAT router setup to work. The network topology is dirt-simple:
Code:
ISP gateway X.Y.Z.65 ->
Linux NAT router box X.Y.Z.108 (eth1) and 192.168.0.138 (eth0) ->
Windows Vista laptop 192.168.0.2
I'm running Debian "squeeze" - plain vanilla install with Gnome.
[Code]....
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Feb 5, 2011
I upgraded from Fedora 12 to 13 a couple of days ago, and it seemed to go off without a hitch, but I can no longer boot into Windows. Disk Utility reports that partition as Unknown. It still says HPFS/NTFS (0x07), but it shows no flags, and it doesn't show the file system type the way the others do. Is there a way for me to recover this with a minimal loss of data (preferably none)?
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May 16, 2010
I have an imac 27'' i7 and cannot get to install ubuntu.
I always get a blank black screen when during installation even when I select the "safe graphic mode". During installation, the i get some multi-colored straits at some point and then nothing, it returns to the black screen.
I even tried to partition my hard drive with Gparted and got the same blank black screen even with the "safe graphic mode" option.
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May 23, 2010
I have been running Ubuntu in my iBook/g4 800, 12' inch screen since jaunty and I must confess that I have had a fair share of graphics issue, however, since karmic, my computer would just go off especially when the AC is disconnected then on plugging back the AC, it comes back on but with the windows or the previous items on the screen completely deformed, that kind of deformation you would only blame graphics for. So the deformation stays for long and a reboot is all I'm left with.While still in karmic, i thought an upgrade to Lucid would get things back in place but that never happened, so I have been wondering what to do. I thought of a key combination that would turn on the screen in an iBook but I cant seem to find that through google, so I'm left with just fixing the underlying issue which according to some post on the Internet, wrong graphics settings might cause the monitor to shut down unexpectedly. I don't know exactly what exactly am I supposed to do? If that post is anything to go by, here is my xorg.conf(I know karmic+ does not need this but my system needs it) code...
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Jul 18, 2010
My current set up in OS X has an external monitor (Acer H243H) and my MBP 13" screen as an extension. The only way for me to currently get the menus and panes on the external monitor is to turn the Macbook display off. is there any way for me to change this?
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Jan 28, 2011
I got some upgrade few days ago and after a raccomended reboot I had the Ubuntu loading screen (the one in purple with the loading dots) completely messed up!
This is a picture of what I'm talking about. I'm an Ubuntu noob and I don't know if there's some "upgrade history" and actually I'm not even sure that the upgrade is linked with the issue Ah, it also happens when I shut down the computer, not only when I boot. I'm running Ubuntu 10.04 over a MacbookPro 5.3 btw
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Apr 29, 2011
I have a Macbook Pro, with ubuntu as the ONLY OS, there is no dual boot. I bought the mac long ago and recently got fed up with OS X, so i removed it for unbutu. i've been having random troubles with it but have for the most part been able to figure it out by reading forums however, my computer will not boot now.
From power off:
Push power button
Screen becomes grey for about twenty seconds
screen becomes black
sometimes flashes the underscore in the top right corner once
screen goes black
no change thereafter
I was playing Warcraft 3 (running on WINE) when I left it, the CD is still in the disk drive. I cannot eject it, I can not get to a log in screen, I can't do anything. Nothing I have attempted has affect the computer what so ever, except the power button as far as I can tell.
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May 11, 2011
I originally installed Maverick on my Macbook 5.1 using rEFIt to dual boot. For some reason, after installing Compiz my screen brightness functionality stopped working. It was permanently 100%. I thought that upgrading to Natty might work, but no luck. So far I've tried changing the brightness manually in terminal and in power-management, editing the grub file and also reinstalling compiz, all to no avail. Trying to alter brightness using the fn keys displays the brightness panel in the top right, and it decreases in value as it should, but the screen stays bright. The brightness settings work fine when I boot to Mac.
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May 28, 2011
I have a macbook pro 5,3 and recently i've upgraded from ubuntu 10.10 to 11.04 , but after the instalation when I reboot ubuntu hangs on purple screen and no login window appears, what can I do to login into my ubuntu?
I've found a strange thing : when the purple screen appears if I wait for about 5 minutes and then restart my computer the next time a window with some options appears and when i choose "use previous version of linux" it goes into natty! I really don't know what's going on
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Aug 14, 2011
I was looking for some way to make 'watch folder' and I found and installed inotify and incron. Explanations were perfect and everything seemed great. So I made test script and it worked as expected.
Now, bash script that was evoked by event by incron consisted this terrible line:
...
mv * /some/folder/
...
which I expected to be run from watched folder, but instead it is run on holy root /
Rest is tragedy: everything was moved to this folder and I can't access any command. Terminal was opened but it did not accept commands. I cd to '/some/folder/bin' then tried to execute command but no luck. I tried also Ctrl+Alt+F1 - same.
What can I do except reboot. Now what? Grub rescue failure prompt. I went in BIOS to make it boot from separate SATA HD with Windows 7, but it somehow isn't listed there. I can't think why. I tried from this Live CD to move folders to correct location, but it's Permission denied
[edit] Re-reading now, in terminal command 'cd' (change directory) was working, but sure not ls, mv and others. Maybe I could have done something, but probably not, network connection was lost, music stopped playing everything was vanishing...
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Jan 17, 2010
imac g3 power pc screen goes blank and the power button goes orange after kubunto loads, but the computer is still running, how do i fix this problem, if you have any information please be very spesific i have no idea what im doing so include all steps, thanks to anyone who posts (if this helps the computer makes the drum roll noise if i hit enter but the screen still stays blank)
(xbuntu version -xubuntu-8.10-alternate-powerpc)
(system informaiton...
(powerPc G3 266MHz/512k catche/32mb/6gb HD/24x CD-ROM/rage Pro/6MB SGRAM)
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Jan 18, 2010
my imac g3 power pc screen goes blank and the power button goes orange after Xubunto loads, but the computer is still running, how do I fix this problem, if you have any information please be very spesific I have no idea what im doing so include all steps, thanks to anyone who posts (if this helps the computer makes the drum roll noise if I hit enter but the screen still stays blank)
(xbuntu version -xubuntu-8.10-alternate-powerpc)
(system informaiton...
(powerPc G3 266MHz/512k catche/32mb/6gb HD/24x CD-ROM/rage Pro/6MB SGRAM)
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