Commonly used to refer to unresponsive computers. If your software is freezing then you likely need to file a bug, as freeze problems are usually off topic here and will likely be closed.

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13
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2answers
4k views

How to diagnose Ubuntu CPU spikes / IO wait?

I'm using Ubuntu and every couple minutes it goes unresponsive for a half second to a full second, which isn't normally a problem but makes trying to code extremely frustrating when your trying to hit ...
12
votes
0answers
5k views

Ubuntu keeps randomly freezing [duplicate]

Possible Duplicate: What should I do when Ubuntu freezes? My Ubuntu 11.04 installation keeps randomly freezing. I can't really find a pattern in when it happens. First the cursor starts ...
10
votes
3answers
2k views

How do I get Ubuntu to stop hanging periodically?

Ever since Ubuntu 11.04, I have been experiencing random system hangs (I'm currently running 11.10). REISUB does not recover the system and a hard-boot is required. Scanning all the system logs ...
9
votes
6answers
15k views

Ubuntu freezes/crash after wake when upgraded to 13.10

Back on 13.04 it didn't occurred. I've upgraded to 13.10, systems apparently working fine, but, when I put it to sleep(using or not using extended monitor) and try to wake up, I see the screen(both), ...
9
votes
4answers
4k views

Update Manager got stuck (but not frozen) while installing downloaded updates. What should I do?

I have just gotten my Ubuntu 12.04 LTS desktop computer reassembled after a trip back home and connected it to my parent's wireless Internet connection. The connection seems quite shaky (disconnects ...
9
votes
2answers
789 views

How to recover unbootable system?

I have just run the most recent set of recommended updates on a 10.10 system. The computer is now un-bootable. It gets as far as the "Ubuntu..." splash and then does nothing. I cannot switch to a ...
9
votes
1answer
2k views

How do I debug xorg/fglrx related system freezes on Ubuntu 12.10?

My brand new system is randomly freezing and I don't know how to debug the issue. System: AMD A10-5800k Asus F2A85-M motherboard Integrated Radeon HD 7660D 8gb Samsung ddr3 1600 Ubuntu 12.10 Gnome ...
8
votes
5answers
931 views

ubuntu freeze when I plugged the power cable

I recently update the system(12.10) on my laptop and after that whenever I plug the power cable in to my laptop it freezes and has no function of the mouse or the keyboard. I have to reboot the laptop ...
8
votes
1answer
809 views

How to determine what happened and locate the problem when my system freezes?

Hello I had some freezes with my desktop. It is Lucid 10.04 on a Lenovo 3000 N200. System freezes completely. How can I locate the problem?
8
votes
2answers
2k views

Ubuntu 12.04 freezing on new laptop [closed]

I recently got a new laptop (System76 Gazelle Professional), which came preloaded with Ubuntu 12.04. I have been using it for several days. Multiple times the screen has simply frozen, with an ...
7
votes
4answers
8k views

How to recover from GNOME 3.2 freeze?

I have Ubuntu 11.10 installed and am using GNOME 3.2. I am left with no other option than to restart gdm or to reboot the system, when GNOME freezes. GNOME freezes at times when resuming from suspend ...
7
votes
2answers
2k views

13.10 hangs on waking from suspend except when suspended from console

I know waking from suspend is an issue, but this looks like a separate bug. When I suspend 13.10 on HP Pavillion dv6 (AMD 6770M/fglrx 13.10.10) from x, it suspends normally but freezes when waking. I ...
7
votes
2answers
2k views

Complete freeze on a Thinkpad T520 [closed]

Ubuntu 11.04 on my Thinkpad T520 has been randomly freezing every since I installed it. I asked the following question a long time ago but it hasn't really helped me: How do I debug when the system ...
7
votes
1answer
5k views

Ubuntu 13.04 screen freezing [duplicate]

I have some issues with my Ubuntu 13.04 upgrade. From time to time everything on the screen except mouse pointer freezes forever. Ctrl+Alt+F1 (and so on) still works: if there is animation on screen, ...
7
votes
0answers
2k views

Ubuntu 13.10 keeps freezing frequently [closed]

I have a huge problem since I've updated to Ubuntu 13.10. Previously this problem did not occur with Ubuntu 12.04 LTS and later with 13.04 (though with 13.04 and 13.10 there's also a problem with ntfs ...
7
votes
0answers
6k views

Ubuntu 12.04 / 12.10 Randomly Freezing - nVidia? [duplicate]

Possible Duplicate: What should I do when Ubuntu freezes? My Ubuntu install frequently freezes, sometimes showing a black screen (not very common anymore - in my latest installs), some ...
6
votes
2answers
4k views

Why is my terminal freezing up?

Sometimes when my terminal freezes up and it will not let me type. I can not identify any causes, nor how to diagnose. Any suggestions? Thanks! GNOME Terminal 2.30.2 on Ubuntu 10.04
6
votes
2answers
4k views

Distribution upgrade frozen at “flashplugin-installer: downloading http…”

I have just started to upgrade from ubuntu 11.10 to 12.04, which I was at the library for... And when it got to 10mins remaining on "installing the upgrades" and the library closed, and now the ...
6
votes
1answer
319 views

GDM causes freeze on a remote login server. (over 5,000 users)

I run an ubuntu FTP server in the company I work for, and we recently migrated over 5,000 customers to it. I created a jailed user / home folder for each customer and everything was running smoothly ...
6
votes
2answers
5k views

Computer freezing on almost full RAM, possibly disk cache problem

The problem I think is somewhat similar to this thread. It doesn't matter if I have swap enabled or disabled, whenever the real used RAM amount starts going close to maximum and there is almost no ...
6
votes
2answers
769 views

Nautilus freezes when connecting to SSH server [closed]

I have several nautilus bookmarks pointing to SSH servers, so that I can easily access them. Out of nowhere this doesn't work anymore. When I open a bookmark or enter ssh://user@server in the location ...
6
votes
2answers
3k views

“System program problem detected” with apport-gpu-error-intel.py

My Ubuntu 12.10 was working fine, until a week ago when a software update was installed. Now, every two minutes, the computer hangs for a couple of seconds, and then an error message pops up saying ...
6
votes
3answers
1k views

Ubuntu 12.04 froze, requiring powercycle. What should I look / grep for in the logs?

This is not the first time that Ubuntu has froze. Last time, I checked 'recently updated files' in /var/log/ and /var/crash/ and the cause of the problem appeared to be 'LibreOffice'. Now, it has ...
6
votes
2answers
4k views

How do I get my USB keyboard to not freeze up in the recovery menu? [closed]

I am using Ubuntu 11.10, and whenever I enter the recovery menu, my keyboard freezes and I can't make any selections. I have tried using GRUB_PRELOAD_MODULES="usb usb_keyboard" but this doesn't help ...
6
votes
2answers
3k views

Mouse and Keyboard Freeze [closed]

I installed Ubuntu 10.10 today and have had mouse problem since. Symptoms: At some arbitrary point in time (frequency: 2-3 times per hour), the mouse and keyboard stops working for ever(may be). I ...
6
votes
2answers
2k views

Video freezes every few seconds

I have problems playing videos on my Ubuntu 10.10 machine. The video FREEZES every 20-25 seconds, while I could still hear the audio. I use Totem Movie Player (GStreamer) & have nVidia on-board ...
5
votes
3answers
5k views

How do you handle unity freezes?

This is a question in general. Sometimes when using Natty, the interface freezes like the keyboard works but the mouse does respond. In which case pressing Ctrl+Alt+F1 puts me at the terminal. However ...
5
votes
1answer
500 views

How to diagnose random freezes?

Ubuntu always seems to freeze in the first ~15 minutes of when it's booted on my machine. Sometimes it's in the first 5 minutes, sometimes it takes 30 minutes, occasionally it never happens... I ...
5
votes
2answers
2k views

Unable to shutdown/restart/hibernate

After I installed ubuntu 11.04, it wont shutdown nor restart, it just freeze, and I have to hold the power button in order to turn off my netbook. (It also happens on livecd) Can anyone tell me the ...
5
votes
1answer
2k views

How do you diagnose constant crashing issues?

My recent installation 10.10 on my laptop keeps freezing/crashing on start-up after working perfectly for one day. The system just freezes, like a screnshot, and a restart is required. It happens ...
5
votes
2answers
755 views

Why does 11.04 freezes randomly

We're running Ubuntu 11.04 on quite a few Dell machines, but I am noticing that on some of them (including mine) Ubuntu freezes on randomly. Normally when the screen goes to lock mode and you press a ...
5
votes
2answers
1k views

Random mouse freeze on boot

I've upgraded 8 computers to 11.04 from 10.10 through the standard update version process. Two are giving me problems with the UDB optical mouse being frozen upon boot, to either a login prompt, or to ...
5
votes
1answer
315 views

13.10 Windows that are snapped to one side freeze the computer when I drag them to make them full screen

When I have a window snapped to one side, and I drag it to the top of the screen to make it go full screen, it displays the area that it will be, stops at about 4/5s of the way there, and freezes the ...
5
votes
2answers
2k views

Investigating a system “freeze”

Am on Ubuntu 10.04.2 LTS Linux skiran 2.6.32-32-generic-pae #62-Ubuntu SMP Wed Apr 20 22:10:33 UTC 2011 i686 GNU/Linux My machine froze for the 5th time in 2 days. Had to reboot, and login to a ...
5
votes
0answers
137 views

How to do end task similar to that in Windows? [duplicate]

Possible Duplicate: What should I do when Ubuntu freezes? Sometimes Ubuntu freezes and I have no other option than to power off system directly. Is there some remedy or way like 'Ctrl + Alt ...
5
votes
0answers
801 views

Random Freezing [closed]

For several months I've been experiencing random freezing (usually once or twice a day) and have yet to find out what the problem is or how to fix it. The symptoms always are: Mouse and keyboard ...
5
votes
1answer
928 views

Why does ubuntu 11.10 freeze when playing video? [closed]

I run ubuntu 11.10 on i5 CPU with 4GB RAM nvdia geforce GTS 250 connected to widescreen tv (HDMI) When using vlc, xbmc or boxee to play movies the system randomly freeze, the audio is looping the ...
4
votes
4answers
5k views

How can a frozen/locked-up program/app be closed?

I am using Ubuntu 12.04.1 LTS Desktop. My son and I are playing games on GCompris and several modules freeze/lockup. When it does, I don't know how to close the program. I know in Windows I ...
4
votes
3answers
5k views

Trackpad Freezes often [closed]

I have newly installed Ubuntu 11.10 on my system and as soon as I start my system the trackpad freezes and I have to restart the system once again and there after every few minutes this keeps ...
4
votes
1answer
525 views

Why does my 'Caps Lock' diode blink when my system freezes?

I noticed a peculiar behavior of my Ubuntu 13.04 (although possibly it's also present in previous versions): when my system freezes completely (I do not ask for troubleshooting this) so that even X ...
4
votes
1answer
2k views

What is an ACPI GPE storm?

Just experienced a system freeze (no touchpad, no keyboard, screen looked normal), Alt/SysRq/REISUB didn't work, had to press the start button. In var/log/kern.log I find "ACPI: EC: GPE storm ...
4
votes
4answers
10k views

How to Fix Firefox when it freezes completely after open it?

First time ever today Firefox Version 3.6.13 freezed for me on Ubuntu 10.10 64bit. I open Firefox normally but then nothing respond on the GUI.The only thing I can do is close it. When Closed I try ...
4
votes
3answers
1k views

Alt-tab crashes gnome classic desktop (12.04)

I have a fresh install of ubuntu 12.04 and noticed alt-tab wasn't working. I followed some advice and installed compizconfig settings manager, wherein I checked Application Switcher. Then alt-tab ...
4
votes
7answers
2k views

GNOME Shell 3.2 freezes on search [closed]

I have Gnome shell 3.2 and a gnome 3.2 theme installed. But when I use the search bar in Activities, gnome shell freezes and I am left with no other option except to restart the system. Is this a bug? ...
4
votes
1answer
119 views

What's the best way to effectively report bugs?

I've been trying to report a bug about Activities in Kubuntu causing me no end of grief with multiple issues ranging from annoying to total freeze/crash requiring hardware reset. I'm trying to follow ...
4
votes
2answers
96 views

Ubuntu 12.04 stuck at “reboot: Restarting System”

I know this has been asked multiple times before, but most of these threads don't have an answer. I tried user62664's solution here and ran sudo update-grub successfully, but nothing changed. This ...
4
votes
2answers
2k views

White blocking screen when put youtube in full-screen mode

I am using Ubuntu 12.04 LTS.. In most cases, when I put a video in a Full screen on YouTube (I am not using HTML5, I am using Flash Player), and when try to exit the full screen mode, I got my screen ...
4
votes
2answers
2k views

Google Chrome causes system freeze

I'm using xubuntu 12.04, but google chrome always causes system freezes while I'm scrolling down a webpage or a drop down box pops out. It is quite strange that tty1 could not be switched but only ...
4
votes
1answer
2k views

Super slow and laggy?

I'm a native Windows user, running 7 Home Premium atm. In the past I installed Ubuntu 10 on my netbook I believe, but was a bit 'scared' by it. Anyways, I made a partition on my desktop pc, 100gb and ...
4
votes
3answers
5k views

Random freezes, Radeon mentioned in the console [closed]

I try to run Ubuntu 11.10. I tried : 64 bits release 32 bits release live CD Ubuntu is freezing randomly... I don't know why. Mouse is freezing, screen go black then appear again, mouse is moving ...