Ubuntu :: Random Freezes And Black Flickers?

Jul 25, 2011

I got Ubuntu 11.04 on my USB and I booted from it for the first time, worked fine. I went back and it started to flicker and freeze then come back and the rez was stuffed.

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Ubuntu Multimedia :: Java Runtime Environment Flickers Black

Jan 2, 2011

Just did a fresh install of 8.04 on wifes laptop (Inspiron 1521) as it has been a nightmare getting things to work with it's hardware and 8.04 seems to have the least issues. Did the first section of the Comprehensive Multimedia and Video Howto stickied at the top of this forum, then dled minecraft to test things out. Heres the terminal readout


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Ubuntu :: Random Freezes In 10.10?

Jan 15, 2011

I've been using Ubuntu for a while now, and ever since I installed 10.10 (I did a clean install) I've been having problems with the computer completely locking up... nothing is responsive. I've not had this problem on any prior Ubuntu version. The problem started after I installed the updates for ubuntu... I have a hunch that its either the nvidia driver i installed or the latest kernel thats causing the problem. I'm using the proprietary driver for nvidia and my card is a GeForce6100 nForce 405... the kernel 2.6.35-22... as you can imagine its quite annoying having the computer lock up.. P.S.- the freezes aren't exactly random, they happen generally when I'm using high CPU %'s (e.g. when i import all my music at once to rhythmbox and playing spring rts)

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Ubuntu :: Debug Random Freezes In Gnome?

Apr 10, 2010

At random times (approx. once a day), my whole ubuntu/gnome interface freezes. mouseover-animiations (for example on the icons in the taskbar) keep working, but clicking doesn't do anything anymore. On the keyboard, tab and arrows keeps working, but most other keys don't do anything. The only option seems to be to reboot. After that reboot everything is fine again (for a while)

Once the freeze happens, it freezes both the standard ubuntu panels but also the program I have open at that moment. It doesn't seem to be connected to a specific program I run.

Is there some log, or anything else that I can use to figure out where these freezes are coming from?

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Ubuntu :: RTorrent - Random Crashes And Freezes

Apr 22, 2010

I've been using rTorrent for a good two years now, and it's been running smoothly until about 6 months ago when random crashes and freezes would occur, between once per day and once per week. (I think it freezes if I run in screen, and crashes if I run it directly.) I've updated both rtorrent and libtorrent, updated cURL, and searched the internet near and far for a solution. I finally got this output (pastebin) after a crash today. I'm not sure how far up it goes, mainly because I'm not sure how I can scroll up the terminal window, and syslog doesn't seem to be of any help. Bottom line, I have no idea what rtorrent/libtorrent are doing, and random crashes are becoming very frustrating. For what it's worth I have a very large library (2000+) of shared files. Using version 9.04

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Ubuntu :: Computer Freezes When Opening Any Random App?

Jul 4, 2010

I installed Ubuntu Lucid on my computer a few weeks ago (fresh install, formatted). But recently I've been having some problems.

This is about the 4th time it happens. When I randomly open a program, sometimes the whole computer will just freeze. I can't change to a terminal window with Ctrl-Alt-F1,2,3,4 or anything. I can only press the Reset button on the computer case. This is frustrating because I already lost ALL my firefox settings and addons and I don't want anything like this to keep on happening.

The problem was: *drumroll* the POWER SOURCE.

Apparently the voltage was having little drops and this caused all the hardware to freeze. This caused the system operation to be WORSE after I bought the new graphics card (since it was bigger and needed more power). I bought a new powersource and installed it and it seems everything is alright now.

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Ubuntu :: Random Win7 Freezes After 1.0.10 Install?

Oct 16, 2010

I currently have Windows 7 Ultimate 64 running on my Asus laptop. I decided to install Ubuntu 10.10 along side Windows, as I will need it for work. It was installed via side-by-side and re-sized the partition

The installation of Ubuntu was flawless and works great, but now when I boot to Windows, its will randomly freeze, sometimes in 1 minute, sometimes within 10 minutes.

The only way I can solve this issue, is to either perform a disk scan from windows or restore the MBR.

The disk scan works, and Windows run fine, although If I boot Ubuntu again, run that for awhile, then boot windows again the problem returns.

Restoring the MBR works as well, though without a dualboot, its useless

I have also tried EasyBCD and replaced GRUB with Windows boot manager, though same problems.

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Ubuntu :: Random Freezes And Responds No Input In 10.10?

Mar 10, 2011

i am, many people out there using Ubuntu 10.10 (or 10.4) have been experiencing seemingly random freezes. Whereby the system freezes and responds to absolutely no input. If you have been having a similar issue perhaps you could post in this thread and we could try and establish some commonalities. Perhaps its hardware, software, drivers or some combination. I have a Dell Inspiron 1300, with a Pentium M 2.10ghz CPU. I have experienced freezes with and without Compiz running and even in Openbox sessions.

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Ubuntu :: Random Freezes After New Memory Install?

May 19, 2011

I have an HP dx5150 with Ubuntu 11.04. I recently added 2 new memory chips (total 4) with the same specifications as the originals. The memory is recognized by the BIOS and Memtest returns no errors. The computer boots normally and functions normally for an hour or so, and then freezes. When it freezes it does not accept any input and the screen gets displays a bunch of small green or purple lines. Here is the output from lshw:

description: Desktop Computer
product: HP dx5150 SFF (EW249UC#ABA)
vendor: Hewlett-Packard


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Ubuntu :: Random Freezes And Crashes On Kubuntu 11.04

Jun 28, 2011

i've been running Kubuntu 11.04 for a couple weeks now and trying to transition away from windows but i have had this problem with seemingly random system freezing and crashing i run kubuntu 11.04 64bit on a dell studio 1558 with a core i5, intel hd graphics, and 6gb ram.

my laptop after awhile will just freeze and all i can do is a hard reset, sometimes the screen will go black with a bunch of text, but i think that only happens when virtualbox is running b/c i can sometimes get back to the desktop, but it will freeze nevertheless (i run win7 in vbox for certain things i need like itunes and office).. i do notice that my laptop is getting pretty warm, but i don't know if that's related b/c it always did under windows

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Hardware :: Random Freezes In Ubuntu / Sabayon And Others

Jul 27, 2010

I had Linux Mint installed and it became subject to random freezes. The system was never under any serious strain at the times that this occurred. I went to the Ubuntu forums and discovered that this is a relatively common problem with Ubuntu and that there's no fix available. I tried almost all advice offered there, without any remedy. These included disabling Flash, Java, Compiz, Nvidia drivers etc etc.

I decided to try another distro. Since then I've had random freezes in Suse, Sabayon and even with a Fedora live disc. Oddly enough, I never have this issue with Win 7 (I dual boot). If this is a hardware problem, why does it never occur under Win 7? If it is, as I suspect a hardware issue, how can I identify the source of the problem and resolve it?

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Ubuntu :: Cairo-dock Causing Random Freezes?

May 28, 2010

I'd been using karmic for ages with no probs. I did a fresh install of lucid when it came out and installed compiz and cairo-dock. Rather annoyingly my computer started to completely freeze. I couldn't get a shell up, I couldn't ssh from another machine and the sysrq keys didn't work (the fan picked up speed almost immediately). The freezing didn't seem to follow any pattern and wasn't happening when accessing the dock. I decided to disable compiz (and cairo-dock) to see if this helped. It did! I reintroduced compiz with no problems, but as soon as I introduced cairo-dock, I started to get the same problem.

I've not been able to find anything in the general logs to give any clues. ubuntu lucid

asus f5
ati radeon HD 3400

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Ubuntu :: Ubu Karmic 2 Lucid Upgrade Now Random Freezes / Fix It?

Apr 26, 2011

1st post @ LQ. Ubuntu user since 2007ish. Lots of PC experience... now vexed by upgrade from 9.10 Karmic to 10.04LTS Lucid.

The problem: random freezes whenever I boot into Lucid as user through usual Grub menu. The freeze sequence is: 1- screen stops, 2- mouse pointer freeze w/ no effect on click but moves freely and keyboard is useless, 3- screen blacks out for about 30 seconds and then returns but is unusable and 4- constant HDD activity for about 5-10 seconds. I have waited several minutes for a recovery of some sort but no dice. I reboot via on/off or reset button. Ubu deletes 2 inodes and then I'm off and running again.

If I boot through the recovery console there are no problems at all. The recovery console sequence: 1- select recovery from Grub menu, 2- at recovery menu select drop to root command prompt, 3- give root password, 4- enter 'gdm' at console prompt, finish boot up in my only user desktop (not root.)

I have not been able to find any log files that show an error message, but I'm not so tech oriented that I would necessarily know one if I saw one. Through many hours of browsing posts describing Lucid problems @ UbuntuForums (one of which has over 1,000 responses) I have found my '.xsession-errors' file (attached) is full of data.code...

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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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Fedora :: Random Freezes Lead To Restarts

Nov 6, 2009

It's been freezing on me like you wouldn't believe today, and I think it has something to do with the load put on the CPU by various sites. The trouble is, I need to access a few of these sites to do my work. WordPress is one of them. I've had to restart the computer five times via SysRq keys since when these freezes happen, I can't Ctrl-Alt-Backspace out of it (even with zap enabled) and I can't bring up a terminal or Alt-F2 to kill process. I can't switch processes, windows, or anything. Firefox just sits there and laughs at me as I threaten to bust the screen in half.

And the real funny thing is, people actually say this is a better browser than IE. I never had these problems on Windows.What can I do to stop this? Do I just have to switch to another browser?

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Fedora :: Random And Annoying System Freezes In F13

Aug 7, 2010

I'm getting very random full system freezes with F13. The keyboard stops responding completely. Sometimes the mouse (and the mouse only) still works. I those cases, I can log in via ssh, kill kdm, and everything goes back to normal until the next freeze. However, in most cases, I have to do a hard reboot. Sometimes the system goes on for days without a problem, and sometimes it freezes 10 times in a day (It's in one of those days that the bug-screen saved me from flying out the window). I also had this problem on F12. I'm not sure if its video-driver related as both nvidia and nouveau experience this behaviour. In fact, I'm not at all sure what the cause may be.

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Ubuntu :: Random System Freezes While Watching Video (Fullscreen)

Jun 30, 2010

My system just freezes randomly. It happens about once a day, which is really often imho. It usually happens when I'm watching a video in fullscreen and it suddenly stops. I can't alt-tab or escape out of fullscreen, my mouse doesn't work and the keyboard is unresponsive. I'm forced to restart by pressing my computer's power button. This happens in both vlc and kmplayer and it also happened a few times when i was not watching a video. I was just on firefox, browsing the internet.

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Ubuntu :: 10.04 Lucid Lynx Desktop Edition - Random Freezes

Sep 18, 2010

I'm running Ubuntu 10.04 Lucid Lynx Desktop Edition and most of the time I get these random freezes and then I have to turn off my computer and reboot it back on. It's getting really annoying because I am constantly downloading huge packs of data and it freezes and then I have to start re downloading...

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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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Debian Multimedia :: Random Freezes After Jessie Upgrade

Feb 13, 2016

I just upgraded my Debian Wheezy XFCE 32-Bite to Jessie.

Now some strange freezes occur. After 10sec - 3min after login the GUi freezes and the screen gets blurry and some "lines" appear.

I never suffered from this bug under Wheezy. What could be wrong? Some conflict with the X-server?

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Fedora :: Random Crashes & Freezes Copying From NTFS?

Dec 22, 2009

I am in the process of trying to move my files from a windows 2003 install over to fedora 12 using the Fedora 12 x86_64 Live image.

After some initial problems with burning the ISO image (had to enable disk-at-once to get rid of I/O buffer errors). And a GPF in the xor_sse2 module while building my software raid 5 arrays (forced to reboot, unable to stop or restart the array) I finally managed to create a single LVM volume group ontop of it all.

Initially I ran some tests on the raid volume and wrote a large 100GB file filled with zeroes all over it to be sure that it was functioning normally. After that I proceeded to copy files over from the NTFS volume to the LVM volume. which resulted in lots of errors on my terminal and complete loss of the entire filesystem. Even a simple ls -l / resulted in "Bus Error" although the system still kept running for a few seconds, until it finally froze and spontaneously rebooted. Since then I ran memtest to be sure my memory is fine, and tried alternative ways of mounting the volumes, and copy methods. Each attempt resulted in either a complete freeze or instant reboot. After 6 reboots, I managed to copy 20GB out of 490GB. Obviously this will take forever this way.

/var/log/messages is unhelpful. There are a bunch of cryptic messages regarding ATA bus errors (mostly CRC errors it seems) and soft resets when the LVM volume get mounted, but everything functions fine until I touch the NTFS volume.

Here are some of them:

Dec 22 02:32:15 localhost kernel: ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
Dec 22 02:32:15 localhost kernel: ata6.00: BMDMA stat 0x4
Dec 22 02:32:15 localhost kernel: ata6.00: cmd ca/00:80:02:a5:fb/00:00:00:00:00/e7 tag 0 dma 65536 out


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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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Ubuntu :: Login To Xfce The Screen Goes Black - Flickers A Few Times Then It Brings Back To The Login Screen

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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Ubuntu Installation :: Freezes At Random Points - Copy Files To Hard Drive

Nov 20, 2010

I'v been trying to install Ubuntu (and actually all other dists of linux (in hope of succes), but running ubuntu on my other machines and prefer it) on my old laptop. Laptop Acer Aspire 1312XC. Have just run a 24 hour RAM test it turned out ok. Have tried with other RAM blocks in aswell. The install freezes at random points in the installation. Mainly when trying to copy files to the hard drive. The only thing i've succeded in installing was Ubuntu server and windows XP. I have tried with ACPI off and all the other special atributes. No success so far.

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Fedora Hardware :: ATI Mobility Radeon X1350 - F14 Random Freezes

Nov 4, 2010

HP Compaq 6820s: During the installation of F14 I noticed that the system freezes for a while every few seconds. The installed and rebooted laptop behaves the same way. Disturbing repeated messages in var/log/messages:

Nov 3 18:20:22 localhost kernel: [ 512.589815] [drm:radeon_dvi_detect] *ERROR* DVI-I-1: probed a monitor but no|invalid EDID
Nov 3 18:20:34 localhost kernel: [ 524.463172] [drm:drm_edid_block_valid] *ERROR* Raw EDID:


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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 :: 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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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 :: 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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