Ubuntu 8.04 freeze seemingly ramdom

what is your computer describtion if u r working on 256 ram this is the problem

It's a computer with an AMD Athlon 2200+ processor and 1 GB RAM.

I have had some freezes on Ubuntu 8.04 after upgrading from 7.10.
There is a bug listed against Hardy for freezing but I could not contribute anything meaningful since it was so random.
(As an aside, I have the latest updates on now and the recent kernel update seems to have fixed it)

I would suggest if the machine is used only as a server that you reinstall with 8.04 Server (i.e. without any window manager) and administer it remotely with ssh and webmin under apache.
My other server machine is setup like that and has been rock solid.

I've got the latest updates on said computer. Also I need a GUI on the computer.

A common cause of freezing like you describe is your CPU is running too hot. Check the temperature of your CPU / clean out the box (remove dust, etc).

I'm using compaq presario v6000 laptop and I have the same problem, please can anyone help?

I've been having similar, "seemingly" random problems with Firefox & Thunderbird. But I have also noticed that the freeze occurs when I initiate my Microsoft Trackball Optical mouse. Is there a method or app available to debug this possibility?

--update--
After first reporting this bug, I switched to Opera as my default browser. This was fine for the first few days, but Ubuntu once again resumed hanging up, almost daily. I started monitoring CPU usage on each startup, and 10 minutes or so, thereafter. I noticed spikes when tracker began running. So I disabled it on the session manager. And, since exiting through the tray icon wasn't shutting down the daemon, I had to end the app from system monitor. I noticed an immediate reduction in CPU usage. I uninstalled tracker, libdeskbar-tracker, and tracker-search-tool, and I deleted the 300MB ./cache/tracker folder. Since then, my system has been running perfectly.

--original comment--
I'm running Ubuntu 8.04 and have problems with my computer freezing seemingly randomly (had this problem since 7.10 or before). I usually find out the computer is not responding via ssh och vnc. The computer is mostly used as a server but I play movies and music from it to so sometimes I notice crashes with a movie frame freezing or a song stuttering an endless loop. The freezes happens about every second day, sometimes several times a day too. I haven't been able to connect the freezes to any particular use of the computer, it's seems to happen randomly. Also I've checked through the system's logs after a freeze to find clues, but without success. Will appreciate any help to understand and fix this. Can it be a hardware problem?

--update--
After first reporting this bug, I switched to Opera as my default browser. This was fine for the first few days, but Ubuntu once again resumed hanging up, almost daily. I started monitoring CPU usage on each startup, and 10 minutes or so, thereafter. I noticed spikes when tracker began running. So I disabled it on the session manager. And, since exiting through the tray icon wasn't shutting down the daemon, I had to end the app from system monitor. I noticed an immediate reduction in CPU usage. I uninstalled tracker, libdeskbar-tracker, and tracker-search-tool, and I deleted the 300MB ./cache/tracker folder. Since then, my system has been running perfectly.

Sorry about goofing up the thread, all.

I also have this annoying problem - seemingly random. No noticable pattern related to apps running or not running. The screen freezes in place and the only remedy is to reboot. 8.04

ATI Radeon 9200
AMD 2400+
Several large hard drives
1 G ram

Never have that problem with Windows, nor when running something off a live CD.

Do have it with various kernels , including 26.24-16 and 26.24-24. But not (so far, at least the past day) with 26.24-21. (holding breath)!

I also have this annoying problem - seemingly random. No noticable pattern related to apps running or not running. The screen freezes in place and the only remedy is to reboot. 8.04

ATI Radeon 9200
AMD 2400+
Several large hard drives
1 G ram

Never have that problem with Windows, nor when running something off a live CD.

Do have it with various kernels , including 26.24-16 and 26.24-24. But not (so far, at least the past day) with 26.24-21. (holding breath)!

I've got a few issues along these lines.

First, I installed Ubuntu 8.10 Server, activating and installing only the samba and ssh daemons. I want it mostly as a file server, so it seemed a good idea to go minimalist.

System is a 1.1 gigahertz Celeron processor w/ onboard AGP VT8601 CyberBlade/i1 video, and Eth0 (a 3c905c Fast Etherlink [3com]). 80 gig hard drive, partitioned as 10gig root system and 70gig home directories.

I have two boxes (1 windows and 1 Ubuntu Server) using one monitor and keyboard and mouse via a Belkin Omnivision switcher unit. (Yes, this could be why the following happens... but it isn't. Trust me, I tried the Ubuntu box without the switcher unit and it made no discernable difference.)

Install went great. Then I tried to copy my files via WinSCP (a freebie ssh-ftp program) from my xp box to the Linux server. It worked... for a while. Then the system timed out. I could restart it a few times by directly using the keyboard on the linux box, but eventually (and sometimes the first time) it would freeze the whole system -- I couldn't even log in remotely. That vaunted linux stability which I love seems absent to the extreme here.

So I installed a graphical ubuntu system on top of the server, mainly because I got tired of putzing around in ascii files located in /etc and elsewhere. I thought the graphical interface of gnome would help. Alas. Gnome's internet applet (the one on the taskbar at upper right hand corner) reports there is NO INTERNET CONNECTION, despite the fact that I am at this instant typing via an internet connection on this Ubuntu box! Sigh...

This may be a number of non-related issues, or one simple issue (I hope the latter).

I need help to:
1. Get the computer to realize it is in fact connected to the internet
2. Stop the freezing (whether caused by ssh or not... I'm beginning to suspect not but don't know).

More info available once all your brilliant minds ponder my predicament.

Oh, and one other thing. My computer is hooked to the internet via a dhcp server located elsewhere in our building. My ip address is dynamically assigned by that box. It is working because I see my computer's name appear on the command line as well as seeing it appear during the installation of the original Ubuntu Server disk.

Thanks in advance!

Jon Trott

My problem may have been fixed by changing gfx card. Was an ATI card in it before that may have used much power or being unstable. Dunno.

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