Ubuntu :: Xorg Thrashing Both Cores Of CPU - System Unresponsive
May 10, 2011
I am running 64bit 10.10. For the last fortnight system has become very sluggish responding to input. Programs greyout and become completely unresponsive for long periods of time and cpu usage on one or both cores ramps up. As I type it is c.80% on both. System Monitor shows usage on the cores mirroring one another. top in terminal shows Xorg at 99%. I have attached a screenshot. I have rolled back and/or reloaded the Nvidia graphics drivers to no effect.
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Dec 20, 2009
Basically system monitor and the "top" command show 2 cpu cores when I only have 1 (a 3 Ghz P4 on my work computer).
I'm not sure if the two are related but I frequently get 100% CPU usage when running a few programs together (Kile, Firefox, Chrome and okular for example) at which point even the movement of the mouse cursor slows down.
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Sep 29, 2010
From time to time my system will practically lock up. During these times there is near constant hard disk access, and applications will quit responding for 10-30 seconds at a time.Looking in the processes of System monitor it appears that beam.smp is the culprit, during these times it is using 80-95% cpu and between 2 and 3.5GB or RAM (I have 4GB total).It appears to be this bug: https://bugs.launchpad.net/ubuntu/+s...ng/+bug/458453I am using Ubuntu 10.04, 64-bit. I am also relatively current on my updates (I think the last updates I did were about three days ago).Judging from the comments, though it looks as if it was fixed back in May.I don't know if it matters, but the only thing I use evolution for it its integration to gnome-pilot to sync my old Palm m130.
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Mar 9, 2011
My computer started acting flaky this afternoon and by the end of the day, became completely inoperable. When I reboot and login, I'm given only a Terminal window. I'm running Ubuntu 10.04 LTS, although the Lynx is not very Lucid at the moment!
1). First sign of trouble was yesterday when I was running Win XP as the guest on Virtualbox. XP became unresponsive - at least the mouse could not push any buttons. I had to do a cold shutdown by right-clicking the "close" button at the tab on the bottom Gnome panel. This problem repeated itself today.
2). I attempted (and I thought, succeeded) in upgrading OpenOffice.org to version 3.3. OO seemed to work fine, but after this install I started seeing problems.
3). I attempted to remove Pulse Audio via Synaptic, but instead of removing only Pulse, pieces of software started flying out of the machine (so to speak) at an alarming rate. It happened too fast to count them all. I think the entire desktop is gone along with many individual programs (such as Kaffeine, being one that I noticed).
Currently, I'm running a backup copy of Ubuntu that I keep on a separate hard drive on the same machine. I can access my files from here, and yes, I've backed up my home folder from the other disk!
When I reboot to the damaged system and I get the terminal window, how should I repair the damage? How do I find out if the damage resulted from broken or missing software, or both? Should I try to load Synaptic from the terminal, and if so, how is that done?
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Dec 7, 2010
My name is Mayan Viljoen & I am from South Africa. I am very new with Ubuntu and I don't understand why the Vodafone 3G modem HSDPA USB stick (model k3570-Z) which I recently bought should not like Ubuntu as much as it does Windows. I want to work on the Ubuntu side of my split hard drive rather than the Windows side. It is notoriously difficult to get connected to the net on the new Ubuntu with this 3G modem. Is it because it is really manufactured for Windows or is there another reason? It will only really connect approx. 1 out of approx. 8 odd times on the Ubuntu 10.8 Operating System, which is very annoying to me. What can be the reason for this? If it is that this modem was really made for Windows, what then is the best 3G modem and network to use with Ubuntu 10.8?
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Apr 23, 2015
Since I'm running Sid. Let's assume package foo has been upgraded via apt-get dist-upgrade, and it causes a serious bug so that Sid is never able to fully start up, and is not even able to get me to the console to remove the package.
(Reword: let's assume that I upgraded the system despite apt-listbug warning me that foo had serious issues.)
Is it possible for me to remove the package and get back in? Everything I've seen online assumes that I could at least access console--but this hypothetical bug doesn't allow that.
If it were in Arch, I would just boot from the live dist, arch-chroot into the / directory, and try to remove foo via pacman. But Debian doesn't offer a live disk past Stable, so I suspect that this wouldn't work with a Wheezy disk?
Am I asking for an impossible situation, or can a troublesome package be removed from an unresponsive Sid?
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Jun 3, 2011
who is having issues with lockups check their /var/log/messages for this
May 28 11:41:21 shayne dbus: [system] Activating via systemd: service
name='org.bluez' unit='dbus-org.bluez.service'
May 28 11:41:21 shayne dbus: [system] Activation via systemd failed for unit
'dbus-org.bluez.service': Unit dbus-org.bluez.service failed to load: No such
file or directory. See system logs and 'systemctl status' for details.
May 28 11:41:21 shayne dbus: [system] Activating via systemd: service
name='org.bluez' unit='dbus-org.bluez.service'
[Code]...
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Aug 8, 2011
My system boots, I login and am brought to my desktop. I click on the file system icon in the launcher to open a Nautilus window. The window opens, but is unresponsive (i.e., I can't move it, clicking on the icons does nothing, etc.). If I press the super key to get the dash and the press escape, the window becomes responsive again, just like normal.
If I open a folder in the window, the window becomes halfway unresponsive in that I can't move the window, but I can select more folders and toolbar icons. The top menu no longer appears at this point, and I can't access any of the system icons on the top right of the screen. Alt-F4 closes the window even if the close button doesn't work.As another example, suppose I open a Nautilus window and then a Chromium window. Both are immediately unresponsive. If I super-esc again, I can move the Chromium window around, and it seems to work normally. I can click on the Nautilus window, but it always stays greyed out. Even if I'm clicking on things in it, the Chromium window always has focus.
I had a similar experience to this with VLC and Chromium. After clicking around enough I eventually got it to the point where VLC apparently always had focus, but I couldn't access any of VLC's controls. Double clicking anywhere on the screen fullscreened the video, and that's all I could really do. Not even escape worked to bring it back.I can usually press super to get the dash and Alt-F2 to get a command prompt. Also Alt-Shift-T seems to usually work to bring up a working Terminal (at least one that accepts commands, even if I can't move the window).Does anyone have any ideas on what might be causing this? The behavior is highly unpredictable and extremely frustrating. I should note that key commands don't always work, even though they seem to in my examples. So I don't think it's just a mouse issue.
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Nov 20, 2010
ubuntu 10.10 At times something starts thrashing the HD. Often after the computer has been taken out of Suspension. The whole things slows down and stays slow. This can be fixed by logging off (which takes quite a while under this condition while the HD light stays on, solid) and logging back on. Then the system becomes responsive, with only HD light flickers. Anyway, I can't determine what process is doing the thrashing. System Monitor doesn't show any memory problems, and neither do top or htop. htop shows plenty of swap space available, and memory usage is on par with what it looks like when there is no thrashing. Is there some tool that can display what processes are running the HD so hard?
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Mar 28, 2011
Recently I have found myself getting terrible disk thrashing, to the point that my desktop is almost uncontrollable. I have found that killing the plug-in container task (I'm using 64-bit Firefox 4) brings the thrashing to an end. In other words it's a problem to do with Flash.
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Jan 12, 2010
My ADSL router NAT's any computer behind it here at home. I have a PC or two a Sun ultra10 and ultra5 and E450 etc.
The problem is my PC reports via "tcpdump -i eth0" that
22:54:47.035683 IP icute.pelnet.net.50683 > 224.0.0.56.46144: UDP, length 1292
is going on 140 times every second.
How do I prevent this from continuing and why is it happening? If possible I don't want to invoke iptables as my NAT router does a fine firewall job.
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Dec 15, 2010
Running Ubuntu 10.10 on a Sony Vaio VGN-NR430E laptop.My system had been running noticeably slow lately, so I decided to poke around the system monitor and see what was eating my resources. Xorg peaked at around 50% cpu, so I decided (in a rash decision) to remove it. Went to Syanptic Package Manager -> completely remove all "Xorg server" packages ( was alerted that Xorg itself would have to be reinstalled for this to happen, "OK" ). After Syanptic finished, I looked back to the System Monitor and saw Xorg still there, still eating CPU. Out of frustration, I selected "End Process".The grub loader still works so I can switch between kernel versions and "recovery" mode, but a normal boot simply takes me to a black screen. I tried sudo apt-get update from Recovery mode, only to get an error when connecting to the repositories.
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Jul 18, 2010
I am facing System Speed problem.i saw in top command Xorg process is using CPU and memory upto 75% most of the time,this is why System responding slowly.how to make it normal i do not know. Currently i am using AMD Athlon 64 HT technology processor(Socket 939)
512 DDR1 RAM
Nvidia 5200 GeForce 128 MB Graphic card.
how to make my system resources usage normal.
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Sep 8, 2010
I've been having this issue since at least 9.10. I'm randomly encountering disk thrashing and application freezing which lasts around 30 seconds. Some applications seem to encounter this more often than others. Firefox and Picasa are pretty reliable at reproducing the issue. It also happens often when I'm using Transmission. CPU usage is not unusually high during the 'thrashing' sessions. Running iotop hasn't shed any light on the problem either. I was wondering if anyone else has encountered this or maybe someone could give me some clues. I'm running a dell inspiron 530 with ubuntu 10.04 64bit. I have 4gb of ram. Here is my 'df -h' if that is helpful.
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 103G 26G 73G 26% /
none 2.0G 288K 2.0G 1% /dev
none 2.0G 1.1M 2.0G 1% /dev/shm
none 2.0G 232K 2.0G 1% /var/run
[Code].....
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Apr 24, 2011
Acer Travelmate laptop, 1.3GHz Pentium M, 12MB Ram.pensuse 11.4 (upgraded from 11.3)Vanilla install, not running anything special, always startup and shutdown from scratch, never sleepFor several minutes after KDE appears and I open an app (any app, e.g. Chrome) the hard disk is going nuts. WTF is it doing and how do I stop it? Also some programs take years to start, e.g. digicam took TEN minutes the other day even after waiting a while after booting, the disk thrashing the whole time. But in 11.3 it started almost instantly.
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Nov 1, 2010
I'm dual booting Ubuntu 9.04 and 10.04 on an ASUS P5VD2-MX SE mobo with 3 hard drives, a couple of DVD writers and a multi memory card reader (USB).
The hard drives are:-
1 250Gb SATA MAXTOR STM325082
1 80Gb PATA HITACHI IC35L090AVV207-0
1 80Gb PATA MAXTOR 6Y080P0
9.04 lives on 2 ext3 partitions of the 250G SATA
10.04 on the 2 ext4 partitions of the 80G MAXTOR
The HITATCHI has 1 ext4 partition mounted as a common data area for each O/S
The 250G drive has GRUB Legacy in the MBR with its files in a small ext3 primary partition chainloading the 2 O/S's, GRUB Legacy for 9.04 and GRUB2 for 10.04. It also contains the common SWAP partition (primary)
When I boot into 9.04 everything works as expected with as far as I can see no unusual disk activity even when the ext4 data partition and the 2 10.04 ext4 partitions are mounted. When 10.04 is booted however, after about 5 minutes (irrespective of whether or not the other partitions are mounted) I see the hard drive activity light come on and stay permanently on. The system monitor shows nothing unusual. dstat doesn't give any clues either. I've tried running iotop but it fails with a missing CONFIG_TASK_DELAY_ACCT error.
Is this a known problem with ext4, should I rebuild 10.04 onto ext3 partitions? Are there some special ext4 mount parameters I should use? (I simply copied the fstab lines from 9.04 and just changed ext3 to ext4). I've read that the journaling process(es?) for ext4 by default commonly access the drive(s) every 2-3 secs but that should just cause a flicker surely.
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Aug 13, 2010
I am trying to get a touchscreen driver installed and I am talking to the techs at the company and they asked for a copy of my xorg.conf file. I have done several searches on my computer and looked on other forums posts as to where that file should be located and I cannot find this file anywhere on the system. Does Ubuntu 10.4 even have a xorg.conf file?
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Apr 22, 2010
Just loaded Squeeze (KDE) onto a partition on my desktop and am a bit alarmed by the disk thrashing thats going on? Damn light on constantly. if I didn't know better I'd think I was using Vista. Is this something to do with 'nepomukservices' that seems to be taking a fair amount of cpu time? Not used to KDE 4 so maybe this is normal.
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Apr 29, 2011
I'm using the rhythmbox installation that ships with fedora for my music playback. Every time is start the darn thing up though I can hear my external disk (media library) being accessed really hard. I assume this is part of some sort of library self check and probably a check for new music(?). So this got me wondering on how rhythmbox keeps up with my media library and if there is a way to make it more! I assume that atm rhythmbox just checks every file it now in my library for 'something' and at that also checks for new files and folders in the library directory. So I guess It would be quite a boost in startup performance (disk thrashing) to just skip the existing files checks. Right? Well, I obviously don't know how rhythmbox ticks so be nice.
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Sep 24, 2010
I've noticed tracker-store burning CPU and thrashing disk when I login to a KDE session. I'm tempted to disable it by modifying /etc/xdg/autostart/tracker-store.desktop. But before I do that, what added value does it bring to the party? It seems like it's mainly involved with desktop indexing, which I never use (does anyone?).
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Apr 7, 2011
Xorg takes 700+ mbs of ram, then in matter of hours it fills the swap and then system basically stops responding or whatever. And because its constantly allocating, it degrades perforamce horribly.Interesting thing is I never had this problem before, recently one of my ram modules broke (2+2 GB) and now I have only one, but it still doesnt explain the memory overuse. Windows 7 works perfectly fine.
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Aug 2, 2011
I have a ubuntu 11.04 LAMP server at home.
Its runnign a few small sites on a drupal CMS.
This morning I found none of the sites were responding. The server itself sounded like it was thrashing the hard drive.
It wasnt responding to the FTP client or SSH connections. Web pages just sat there like they were loading very slowly but never actually loaded.
How can I find out what went wrong. I dont have a massive amount of experience with linux, particularly the server variant.
Its worried me a little that the drupal report shows several page not found errors like someone (a bot maybe) was trying to see what php setup files they could access.
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Nov 13, 2010
I have a Dell PC with Debian GNU/Linux lenny.sid that was working as a game server. After solving the problem with the login to the server the system comes to root. I tried startx command but the result was command not found. I could not find the .bin/bash_profile to edit it. I had in mind to #nano /etc/inittab
1:2345:respawn:/sbin/getty 38400 tty1
edit it to 1:2345:respawn:/bin/login -f "root" tty1 </dev/tty1 >/dev/tty1 2>&1
I did not do it since i had to edit the .bash_profile with startx command which I was not able to spot. Whereis could not find the file. I tried to apt-get install x-windows-system but apparently I have a problem with my internet cause it can not download from Debian repositories. I check with ifconfif and later ping and i had results so i might not have problem with the internet. Is it possible the server to be set up so the user can not get into the x-window system? Did they disable anything? Do I have to install xorg and if yes can anybody give me an idea how I can do it?
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Oct 25, 2009
Not sure why I get the same result between (amd64) debian, kubuntu, xubuntu, but the screen will pixelate once the desktop is fully loaded, sometimes when an app window opens like konsole/terminal.
I've tried various combinations, with & without the GeForce PCIx, even the live CDs freeze. Please trust me when I say I exhaust searching for what's already been asked/posted/resolved before posting, yes even Google, I'm at a loss... It freezes like a kernel panic because Ctrl+Alt+F1 doesn't do jack, nor Ctrl+Alt+BkSp, would dmesg have logged anything useful?
A brief hardware list code...
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Feb 8, 2011
So, I am looking to implement an FTP server with Isolated Client accounts/directories where a client can only access what's in their directory. I also need to provide my internal user's (content managers) the ability to upload, delete, etc from all of the Client accounts. The simple part is creating the secure client accounts. It's a matter of changing DIR_MODE in adduser.conf to 700 or 770, creating a user, having the FTP server chroot them to their home directory, revoke/restrict shell/ssh access and maybe even slap on some ACL to prevent botched permissions.The hard part is figuring out how to give my power users the ability to access all of their folders without thrashing security.
My first thought was to put all of the client user-groups in a parent group and having my internal users inherit group permissions..but you can't have groups inside of groups.My second thought was to put all of the client users in the same group and prey that the FTP chroot is enough to keep them from poking around but then I have the problem of how do my internal users access other user directories if they are chrooted. Do I create a second server without chroot.do I create some weird nested homedir structure..I honestly have no idea how to satisfy both requirements (secure client accounts and privileged user accounts). I need my privileged users to authenticate against Active Directory via Likewise open, LDAP, etc and I don't care how the clients authenticate. Though, I would prefer to have both file and FTP-server level protection just to make sure no one can see the other client's data.
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Jan 28, 2010
I upgraded all xserver-xorg packages in my notebook. After restart system Xorg (GDM) don't run. My screen is black. If I will go to console CTRL+ALT+FX, screen is black too. I will go to console only in single-mode and I tried run dpkg-reconfigure xserver-xorg, but without results. I haven't got /etc/X11/xorg.conf in my system. I have got integrated Intel graphics card.
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Feb 4, 2010
I just installed Fedora 12. I have an NVidia FX 5200 card. This xorg.conf will work fine (no 3d acceleration, btw):
[Code]...
Now here's the odd part. If I uncomment the Device section and reboot or logout so that X restarts, my screen will not enter graphics mode. It just flashes on and off several times in text mode and finally stops. It's as if it keeps changing modes trying to get happy and never does.
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Jan 20, 2010
I want to run some xulrunner based program on EC2 - it will run automatically but it needs some display as far as I understand. That probably requires X11 with some dummy screen driver.
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Jan 14, 2010
JIt was easy to check in Windows, but I just wanted to know if there's a way to check if Ubuntu is utilizing both cores of my processor (Pentium Core 2 Duo).
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Apr 22, 2011
I am attempting to Run Ubuntu 10.10 on a system with 128 CPU cores (64 dual core processors), but Ubuntu is only detecting 32 cores. I've looked and looked and cannot find any information on this topic; is there a core limitation in the kernel configuration that I missed? Currently I am using Ubuntu 10.10 Desktop, would I have more luck with 10.10 Server or another version?
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