Ubuntu :: Random Crashes (black Screen And Freezing) On 9.10 On Lenovo T500?

Jan 23, 2010

Got a new Lenovo T500, slapped 9.10 on it. Set of programmes is exactly as on my previous IBM T42, but every so often I get a random crash. No errors, just a complete freeze with a "underscore" cursor in the top-left of the screen.I think / suspect it may have something to do with Transmission running, or perhaps the recent kernel update to 2.6.31-17.Anyone else had anything similar? Maybe on a T400 or R60 / R61 / T60 / T61?

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Ubuntu Networking :: Wireless Connection To Lenovo T500

Mar 6, 2010

I installed Ubuntu 9.10 on my Lenovo T500. The wireless interface information is listed at the bottom of this message.I would like to connect to my Airport Extreme wireless router which is password protected. The bottom of the router lists three MAC addresses with different symbols next to them. I assume the symbols mean different types of connections (e.g., firewire, ethernet cable, etc).

The network icon on the upper right corner of the screen indicates that wireless is enabled. However, I don't get a wireless connection. I checked that the switch on the front of the laptop is "on" for wireless.

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Ubuntu Installation :: Lenovo T500 Will Not Suspend After Upgrade

Aug 11, 2010

I'm experiencing an annoying issue since I upgraded from 9.10 to 10.4: when I try to put my Laptop to sleep, the control sign for suspension starts blinking and that's it: the system hangs and I've got to kill it with pressing the power button. Resuming doesn't work either, same symptoms.

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Ubuntu :: Unable To Use The Lenovo T500 Dual Boot

Mar 8, 2011

I have made a complete mess of a Lenovo T500 Win 7 and Ubuntu dual boot system. I won't go into a long story of how and why I did what I did but jump to the final mess I have. Win 7 is still on the machine it's original partition. Lenovo's recovery partition is still there. The linux swap partition is still there. The partition Ubuntu used to live on is still there but through my own errors unallocated. GRUB is broken and reports this message on boot.

error: unknown filesystem.
grub rescue>

I can boot from the Live USB and see what remains after the mess I've made. Attempts to reinstall Ubuntu onto it's original partition fail because the installer cannot see it. It wants to put Ubuntu into the Win7 partition.I cannot use the ThinkVantage button or F11 to access Lenovo Rescue and Recovery to restore the machine to factory settings and then reinstall Ubuntu.

I cannot use the methods described in other threads on this forum to fix a broken GRUB requiring a Win7 rescue DVD because I don't have one. I have come to trust Lenovo's hidden partition with rescue and recovery files to restore the machine to factory state. (This is my 3rd Lenovo, but my first Win7)

All important files have been backed up, recovery is not necessary.In the end I need to be able to boot into Win 7. This is a work computer, others use it from time to time and don't want to use Ubuntu. So wiping the entire HD and running Ubuntu is not an option. I would like to leave Lenovo's hidden partitions intact as they are usually a good way to recover from a mess. I would very much like to have Ubuntu back as I prefer it to Win 7, Vista and XP.

I can boot from the Live USB into Ubuntu 10.10 and see that the Win7 OS and Lenovo hidden partitions are still there. Attempts to install a fresh copy of Ubuntu 10.10 are not going well because the installer cannot find the partition Ubuntu was first on.

1 - fix or remove GRUB

2 - use GParted to repair my damage to Ubuntu's partition so that Ubuntu's installer recognizes it

3 - reinstall Ubuntu

My unskilled messing about has left my HD partitioned as follows as reported by GParted
Partition...........File System.......Label....................Size........ ....Used..............Free..............Flags


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Ubuntu :: Screen Flashing Black At Random?

Jun 26, 2010

Once I installed it I've been having a problem where the screen flashes black for a split second. i looked up the problem and found this:I navigated to the directory it said, but I don't have an "options" file. What should I do? Are there any other fixes for this? It's quite an irritating problem.

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Ubuntu :: 10.04 Installed Using Wubi - Random Black Screen

May 29, 2010

I installed Ubuntu 10.04 using Wubi. Everything works well, but randomly while I am working my screen will go black and say out of range or no signal. My monitor is a Planar, I have resolution and refresh rate set at factory specs and most of the time it is clear and working well. It seems to be completely random, sometimes it happens while surfing the web, other times I am using gimp, and sometimes I am not near the PC at all. I assume the problem is also the reason I can not use Compiz as well. (Graphics card is a intel 845).

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Ubuntu :: 10.04 - Gnome Environment With Black Screen At Random

Dec 9, 2010

(Using Ver. 10.04-lucid lynx) This is because, at random, Gnome environment will have some kind of problem, leaving me with a black screen, like the terminal but not it, where I can enter my password and that's just about all. There seems to be no way to enter the graphical linux environment. I was forced to wipe the hard drive clean twice because of this and both times I reinstalled lucid lynx.

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Ubuntu :: Random Black Screens And Returns To Login Screen?

Apr 12, 2011

I'm on Ubuntu 11.04 and I have this annoying issue. it does happen very often, but enough to be a problem (atleast once a day or more).While I'm browsing the web (not really doing much of anything else) the screen goes black with some text. I don't get enough time to read the text and I'm returned to the login screen. I'm completely logged off, my session isn't still there when I log back in

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OpenSUSE Hardware :: Screen Goes Black At Random Intervals?

Nov 24, 2010

opensuse v11.3
linux x86_64
ati radeon hd3200 (builtin to mb)
fglrx driver - distribution-specific build

At random intervals the video output is turned off for 2 - 3 seconds giving a black screen. (I suspect the 2 - 3 second blank time is how long it takes the monitor to recover after a loss of input signal.) The interval between events can vary from 1 minute to an hour to more than a week, and recently more than a month. Sometimes I get several per hour; other times not for two weeks. Hmm, there was a kernel update in the last week or so.At one time the cause was pointed at a USB driver problem since a number of USB log entries occurred at the same time as the screen blanking. That is not the case here;here is nothing in </var/log/messages> (or the dmesg output) that is anywhere near when a screen event happens.

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Ubuntu :: Video Drivers - Screen Black With Random Bars Of Color

Apr 11, 2010

I'm a little new to ubuntu. I installed a video driver and after restarting I got as far as the login screen where I saw that the driver did not work: screen is mostly black with random bars of color. I was only able to restart in recovery mode mode. I tried the fix graphics option, which did not work and also some commands that I've seen posted in other threads. So far, still cannot delete the problematic driver or boot up normally successfully.

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General :: Instability In Fedora 15 - Black Screen And Message Appear At Random

Jun 15, 2011

if I reboot the computer, I get the grub menu and am able to choose between Win7 and Fc15. A couple of times during installation the screen flashed black and diplayed a message for a brief second. I can't read that fast but it says something like "DRM nouveau- unknown or unsupported chipset" and one more line that I can't catch. When this happens, I see the pre-login loading screen, the one that shows an icon of a hard drive, network, and so on as each resource is secured. I can log back in, but this starts a new session- it doesn't remember what I was doing. I had to redo the install and setup several times because of this.

I can log in and so on normally, but the black screen and message will appear at random, forcing me to start all over, which is really frustrating. what's going on? Is it the video card? How do I install a driver for it? Also, the hard drive in question has been through a lot. could it have a bad sector or something? Windows didn't even want to "see" it, that's why Fedora is installed on there.

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Ubuntu :: Installation - Screen Scrambles In Random Black And White Box Type Things

Oct 23, 2010

I have ubuntu on my desktop - works great. The problem is I am trying to install it on my laptop. I have the image burned, and it's booting off my cd rom just fine. The problem comes after that. It goes to the ubuntu loading screen for a pretty long time, then after that the screen scrambles in random black and white box type things, at which point I get no response unless I hit the power button at which point a linux screen pops up and tells me it's waiting for programs to close, then boots down.

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OpenSUSE Install :: 11.2 Keeps Freezing - Getting Black Screen And After 30 Seconds The DVD Player Stops Running

Jan 17, 2010

I am trying to install 11.2 but it keeps freezing. I press install and the Linux kernal loads and afterwards I get a black screen and after 30 seconds the DVD player stops running. I have also tried to the online network install and the exact same thing happens. I also tried a DVD I have of 11.1 which I know is good since I have successfully installed it on other machines and the result is also the same. My computer currently has a dual boot of XP and Kubuntu 9.10.

I am returning to Suse after experimenting with Kubuntu but thought I would leave the Kubuntu on the machine (prefer Suse but Kubuntu installed very easily on my computer). Could the Kubuntu be causing this problem or is the difficulty something else? I have also tried the safe install and the other options to no success.

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Fedora :: Frequent Random Momentary Black Screen On 12 With Radeon 3450?

Jan 3, 2010

I am having a frequent (once every 3-4 minute) random momentary black screen and it recovers after 2-3 seconds. I have notice this since the early Fedora 12, but the frequency increases lately.I have turned off the KMS, KDE power management, and screen saver, but it did not help. I have radeon 3450.

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Ubuntu :: Freezing With Flash - Screen Randomly Whited Out Fading In Splotches To Black And Then Back To White

Dec 18, 2010

I am having a problem. I am running Ubuntu 10.04 on a Sony Vaio FW series. It has Nvidia graphics that I don't think the OS is taking advantage of, whatever. It also came with 64-bit Windows, it's a 32-bit OS, and again, as far as I have been concerned, whatever. It's been functioning fine for the half a year since I installed it.

Until recently. My computer has been freezing. What happened first is that the screen randomly whited out, fading in splotches to black and then back to white. This freaked me out, but restarting seemed to smooth things out. Then windows in the OS wouldn't resize, then Flash videos would freeze the OS up, repeating the 2 seconds of sound it last played. Over and over again. In a loop. On a white screen. Sometimes with vertical stripes.

This all happens inconsistently, and whenever I restart it's fine again. I just want to know if there's a deeper issue so that I can resolve it. Otherwise I have been completely satisfied, as a previous Windows and OSX user who is computer-competent within a GUI.

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Software :: Nvidia 9700m, Random Black Screen Caused By Performance Mode?

Jul 1, 2010

I am running on ubuntu 10.04 and using the latest nvidia driver. What I experience is a random black screen, my monitor goes dead and won't turn back on till I hardboot. I had this issue on windows and solved it by downloading rivatuner and telling it to force my 9700m into staying in 3d performance mode at all times. I know it has nothing to do with temps or anything like that. All I need to know is how I can duplicate what I did with rivatuner on windows

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Ubuntu :: Natty Crashes To Black Screen?

Sep 1, 2011

I have had Natty installed for sometime now, and this happened once or twice before where it crashes all of a sudden to a black screen with some text on it, but I don't think there is anything particularly useful in the text. The problem is, in the last couple of days this has happened quite a few times, which shows that something is wrong.

My Computer's Specs:
CPU: AMD Phenom X6 1090T 3.2 GHz
MB: Gigabyte GA-890GPA-UD3H

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Ubuntu Installation :: Natty Crashes To Black Screen But Is Still Running?

Apr 29, 2011

At random times, natty crashes for no obvious reason. The desktop will freeze for about 3 seconds, and then everything goes black. But it seems that everything is still running, because I was able to hit ctrl-Alt-f1 and it worked. This has happened ever since I upgraded to natty yesterday, but is becoming more frequent

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Ubuntu :: 10.04 (64 Bit) On Lenovo T510 Is Freezing

Apr 14, 2010

i'm nix old timer but fairly new to running ubuntu on a laptop (although i've introduced plenty of noobs to ubuntu, because for most people it seems like a better alternative to windoze.).i've got 64-bit 10.04 running mostly well on a lenovo T510, but it is freezing and requiring a hard-reset every few days. certainly a big improvement over 9.10, which froze within minutes of enabling compiz.i'm just wondering if this has been officially reported yet?i kinda wish it actually crashed, so i could get a crash-dump, but it's just freezing.

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OpenSUSE :: Plasma Widgets - Black Screen And Everything Crashes

Sep 7, 2011

I played a bit with plasma widgets and every once in a while everything crashes, I see only black screen and have to restart. After restarting everything worked normal. I found some tutorials for opensuse, and started with some basic shortcuts, such as showing active windows and activities. Then I had black screen again (which I've come accustomed to) and restarted pc expecting everything will be just fine like it was after previous reboots.

But then I saw that all activities are identical and everything I worked on has been deleted. I found in activities window that I have 20 or more activities and I didn't know where they had come from. I am stuck and I didn't see any activity that will restore my desktops to original state, and in my searching through activities I also had a lot of black screens. I use opensuse 11.4 x64 and kde 4.6.

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Ubuntu Installation :: 10.10 Installer Crashes With Black Screen - Even In Text Mode

Oct 23, 2010

It has been a few days I'm struggling to install Kubuntu 10.10 on my computer. I started with the normal CD, burnt it and boot the computer. Halfway through the graphical installer, I got a black screen and system froze up. I tried several things (including running the installer with nomodest and single options) but didn't help.

Then I downloaded the alternate CD and started to install in the text mode. I could get passed installing the kernel and programs but right after adding a user/password, the text installer crashed with a black screen and system froze!

Now, I already have Windows 7 64 bits on this computer and have done all kinds of memory/hardware tests on it and it works fine. The CPU, GPU and the case is well ventilated so nothing is overheating. I also run heavy loads on Windows (MATLAB, Chess engine tournaments) for hours and hours and never had a crash. So I guess the hardware is fine.

Here are the specs of the system if it can help:

CPU: i7 950 GPU: ATI HD5870 (model Gigabyte GV-R587UD-1GD) RAM: 12 GB DDR-1666 Motherboard: Gigabyte GA-X58A-UD3R (rev. 2.0) Optical drive: Liteon ihbs112 USB Mouse and Keyboard

Windows is installed on a SSD and I have 2x 2.0TB hard disks for data. Kubunto, however was being installed on a separate and dedicated 200GB hard disk. During installation process I format and partition this drive. I didn't disconnect/disable the other drives. In BIOS, all SATA controllers are set to run in AHCI mode.

My primary suspect is the graphics card. However, why it would ever crash even in the text mode? Although it works fine in Windows even with heavy gaming so graphics card is itself stable.

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CentOS 5 Hardware :: Launching X11 Sometimes Crashes Core I5 Clarkdale With Black Screen

Aug 23, 2010

I am having a problem with my Core i5 system running Centos 5.5. The system will lock up with a black screen on occasion when launching X11 - this could happen at any time, from the install CD the first time it's being installed or trying a live CD, or the 3rd-10th time I launch startx from tty1 or sometimes just switching from tty1 to display0 or display1. When the crash occurs, sometimes the systems fans will all turn on loud, and the reset button becomes non-responsive. Other times the screen is black and it just sits there and I have to hard power off. There's nothing in /var/log/messages.

I tried a fix from an old post for 5.4 adding the option for "DDC" "false" in the xorg.conf file, and this did not help. I also ran all the system updates, no help.

The system is totally stable so long as I don't switch between ttys and X11 or launch new X11s (it's also stable under other OSs and has passed Memtest86+ 4).

Is this an instability with the Core i5 driver? The "Video Card" in the display options is set to "intel - Experimental modesetting driver for Intel Integrated Graphics Chipsets" - the "experimental" part is a little scary. Should I try setting the driver to "i810" as the 5.5 release notes recommends (again there's no onboard "chipset" this is an embedded graphics processor on the i5 CPU).

here's the getinfo.sh dump

== BEGIN uname -rmi ==
2.6.18-194.11.1.el5 x86_64 x86_64
== END uname -rmi ==


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Fedora :: Loaded 10 Onto Lenovo T60 - Freezing My Laptop ?

Oct 10, 2009

I loaded Fedora 10 onto my Lenovo T60 last week. everyday i boot it up and it works fine for a few minutes, then freezes. to the point of powering off. my mouse still works but nothing else. i power back up and it generally stays up after that.

Before i had Fedora i was useing PCLinux 2009 and it worked just fine. i get a kernel error alert every once in a while. i finally submitted it to Fedora to be reported. also a flash plugin says it is needed at times but most media plays.

Is there something i'm missing here? like i need to add an additional update? i already updated/installed most Fedora 10 updates.

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Ubuntu :: Random Freezing In 9.10

Jan 4, 2010

Ever since I reinstalled Karmic Koala on this PC I've had a problem with random freezing. Initially I believed it to be an issue with my xorg.conf file, however, I disabled it and the crashing still persists..

Processor: Intel(R) Celeron(R) CPU 2.70GHz
Memory: 1GB
Graphics: 82845G/GL [Brookdale-G]/GE rev 01

For what it's worth, I use this same PC for windows XP and do not have this issue.

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Ubuntu :: Random Freezing In 11.04?

Jul 6, 2011

Gotta rewrite everything i just wrote, because it actuall froze while i was typing this. Anyways, recently installed Ubuntu 11.04 and its had nasty freezing issues from the start. When it freezes, i cant move the mouse, none of the cap locks, number lock or scroll locks work. It will put any sounds playing into a small loop, and my mouse freezes. im forced to hard reset my computer everytime. Its 100% random too, not caused by a program, as far as i know.

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Ubuntu :: 10.10 Random Freezing On Asus EEE 1000HE?

Oct 13, 2010

I seem to be receiving the infamous random freezing issue on my Asus 1000HE. It's a stock install of 10.10 Desktop 32-bit with the only noticeable difference being a LUKS/LVM setup. Can anyone with a Asus 1000HE running a non-LUKS/LVM setup confirm this problem?

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Ubuntu Servers :: Random Freezing On NIS/NFS Client Machines?

Aug 25, 2011

We administer a small lab of Ubuntu 11.04 machines. Users authenticate via NIS to the fileserver, which then uses NFS to mount their /home directory.

From time to time, seemingly at random, the machines will lock up. After about 15 minutes, they will go back to normal.

Switching the machine to the console with/ Ctrl+Alt+F1 doesn't help either - credentials get entered, but there's still a 15 minute wait before any commands can be entered. Some error messages show up at this point about processes that were running timing out. However, the root user can log in immediately (which makes us think that this is only affecting NIS accounts).

Logging in with the root account, we can ping our NIS server, and it responds normally. We can restart the networking and NIS daemons but neither of these help.

We checked the NIS error log in /var/yp/ypserv.log and it is empty.

We used to be running a different version of Ubuntu on the client machines (10.04 LTS), but not on the server.

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Ubuntu Multimedia :: Video Freezing Computer After Random Time?

Jun 11, 2010

I have to say I'm really enjoying it. However, when I have been watching videos on ..... and revision3.com after a random amount of time the computer will freeze up and I have to do a hard restart of the computer.I've gone through the multimedia sticky post at the top of these forums with no real luck.Oh just got the computer today as a real budget system.AMD Athlon II X3 435 2.9ghzMSI K9N2GM-FD AM2+on board NVIDIA Geforce 82004GB DDR2 memoryI'm using ubuntu 10.04 64bit version.

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Debian Multimedia :: VLC Video Playback Random Freezing

Jul 17, 2010

When I play videos in VLC, the video output seems to randomly freeze while playing the video. This does not effect the audio though. The audio output continues, but with the video frozen on a frame. This is happening in windowed and full-screen mode. I have to use "pkill vlc" each time twice then start VLC again. I have had to resort to mplayer for the time being. I am running squeeze. I was not experiencing this problem before though (started within the past week), so it must be due to some recent upgrade. I have tried "aptitude purge vlc && aptitude install vlc", but I am still experiencing the same problem.

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Ubuntu :: Xorg Crashes At Random?

May 5, 2010

Ive been having some problems with a Compaq computer with Lubuntu installed. The problem is that Xorg crashes at random displaying a white distortion on the screen and it usually doesn't let me go to a terminal and i have to force a shutdown.
the same happened when I tried to install Ubuntu but worse. Another side effect is that lubuntu at boot up displays its logo in 16-bit colors and then goes to normal colors.

how can i diagnose the random crashes?

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