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Questions tagged [freeze]

A freeze or hang is when the system becomes unresponsive for some period of time. This may relate to memory usage, graphics issues, or something else. If you are having this problem, be sure to include details of your hardware and configuration in your question.

Freezes have a variety of causes.

Adjusting your configuration may help:

  • Make sure you have enough swap space and that it is being used as needed
  • Make sure you are using the correct graphics driver for your system
  • Check for kernel / driver bugs related to your hardware specifically and try any recommended workarounds

Sometimes a transient bug is to blame and the problem goes away after an update or upgrade.

See: What should I do when Ubuntu freezes?

1825 questions
770
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47 answers

What should I do when Ubuntu freezes?

All operating systems freeze sometimes, and Ubuntu is no exception. What should I do to regain control when... just one program stops responding? nothing at all responds to mouse clicks or key presses? the mouse stops moving entirely? I have an…
ændrük
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11 answers

How can I restart GNOME Shell, after it freezes or becomes unresponsive?

Sometimes, my GNOME Shell freezes. I can see (hear) background processes working (playing music), but I can't do anything in GNOME. No Alt+F2 followed by R and Enter. I can switch to console using: Ctrl+Alt+F1, login as the same user and…
jk_
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8 answers

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 space left for disk cache, system becomes totally…
Krišjānis Nesenbergs
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97
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6 answers

Ubuntu 15.10 and 16.04 keep freezing randomly

This issue i had it with 15.10 and it's still here after the 16.04 upgrade. The whole system freezes, no keyboard/mouse input works anymore. I tried a variety of keyboard combinations (found on the internet, like Alt+SysRq+REISUB and others), but…
user67266
73
votes
12 answers

Ubuntu is quickly running out of RAM, and my computer is starting to freeze. What command will solve this?

It happens pretty often to me when I am compiling software in the background and suddenly everything starts to slow down and eventually freeze up [if I do nothing], as I have run out of both RAM and swap space. This question assumes that I have…
Anon
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73
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10 answers

System freezes/unresponsive/unusable when copying large file to USB

Yesterday I was copying a single, 8 GB file to a USB with a slow, 7 MB/s write speed, while my RAM is 3 GB. While copying the system froze, to the point where I couldn't even move the cursor. I managed to log into the text console, and ran iotop, it…
sashoalm
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3 answers

Ubuntu freezes. Which logs can I check out?

So my computer has lately started freezing completely when I run some programs that, in the past, would work great. What I am unsure about however, is what logs that are available to me that could help me track down the issue after a reboot? Thanks
Industrial
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48
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9 answers

Ubuntu 19.10 freezes and lags reguarly

Since I upgraded to Ubuntu 19.10 my system freezes/lags regularly. The mouse, keyboard and screen are completely stuck, after a few seconds it "unfreezes" again. Sometimes it repeats the input I did. For example if I type "F" in a text field it…
Philipp
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44
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11 answers

Ubuntu 18.04 lts freezes while in boot, in wndows Virtual box. Solution?

I am Using Ubuntu in Virtual Box.. the Host OS is Windows10 with dedicated intel's Graphics. I have reinstalled twice, probably this starts due to sudden shutdown or some reason. Dnt know whats the problem. Saw a old post about this type on Ubuntu…
Battleseeker_Rex
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39
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5 answers

Making youtube fullscreen will freeze Unity (the whole desktop)

I never had this problem until today. When I watch a youtube video everything is fine, until I make the video fullscreen. It actually continues to play perfectly when fullscreen, but when I then exit fullscreen my sidebar and topbar are gone, and…
user717572
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What do I do if Ubuntu 16.04 freezes, but I can move only the mouse?

I sometimes experience whole Ubuntu freezes (from 14.04 to 16.04, I upgrade by a clean installation), just mouse can move (that's why this question is different from others). I think this is caused by one of the cores stop working when 100% load by…
aleskva
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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 could use ctrl-alt-del to get to the task manager to…
Kobur
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37
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3 answers

Running any Chromium based browser in Ubuntu 22.04 freezes

So I'm running Ubuntu 22.04, my main browser is Brave which is chromium based but I have replicated this issue successfully in Chrome as well: Browser runs fine. Download content - this opens up a window asking where you would like to download. I…
cortisolblue
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31
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9 answers

Ubuntu 18.04.2 boot stuck on purple screen after updates

Summary of Issue Last Friday, I installed updates to Ubuntu 18.04 with sudo apt-get update && sudo apt-get upgrade. Some of these updates required a restart. Upon restart, after GRUB, boot got stuck on a purple screen before the Ubuntu logo/login. I…
leizmonk
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Freeze after login Ubuntu 18.04

Before the upgrade I was using gnome on Ubuntu 16.04 with lightdm and it worked fine. After upgrading to Ubuntu 18.04 I switched to gnome gdm3. On the first day I could login to my user account, configure gnome and so on. However on the next day…
L. Klimas
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