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Recently I have found that my system has been freezing at non-regular intervals. The freeze is total, the pointer won't move and the usual keyboard combinations such as ctrl+alt+backspace and alt+tab+f4 have no effect.
Upon rebooting and looking in var/log/messages and other logs there there is no indication of any problems, normal activity is logged then there is the reboot being logged, no errors in between.
I am running the following:
Debian etch
2.6.18-4-k7
xorg.conf: (sorry, the insert quote button is not responding)
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
I suspect a problem with the driver for your videocard. Try the VESA driver for a start. If that's stable your videocard driver needs updating or re-installing at least. In the Device section is a line
Code:
Option "UseFBDev" "true"
Try "no" there Or put a hash (#) in front of it. Reboot.
Dutch Master, The same issue occured with the vesa driver and the FBDev option
AwesomeMachine, I am not overclocking but I initially suspected overheating. I have spent the last 2 hours running puppy linux with no problems so...
Either my Debian installation is causing a hardware problem that cases the system to freeze; or there is a genuine software problem.
The cooling fans (it is a laptop) are not working particularly hard though...
I have tried running another browser as I initally suspected Firefox 2 was causing the problem but this is not the case. I will try and eliminate some other possibilities this morning.
I made a small error regarding the UseFBDev option. These are Boolean options and thus the negative option should be "false"... If you hashed out the line entirely that error wouldn't have made a difference though, assuming you've rebooted.
I have made some progress in pinning down a probable cause but have as yet found no solution.
I have a broadband connection via a free and cheerful Speedtouch 330 ADSL modem manufactured by Thompson and provided by my ISP. If this is unplugged I can potter on the computer for hours at a time. If it is plugged in then the freeze happens. I haven't found a solution to this yet and I am also not 100% certain that it is the cause but it looks very likely.
Here's another method of error research:
When the freeze happens, try logging in remotely via ssh from another machine. Install ssh on the offending PC before that! If the login succeeds, use the top command to find a program or service that takes unusual amount of system resources.
One more thing to investigate: are the network and videocard on the same interrupt? Move network or videocard to another slot or assign fixed, non-equal interrupts to either or both. Read the mobo manual to learn how.
Last edited by Dutch Master; 03-10-2007 at 02:47 PM.
Well, more for information than offering a future, much sought out,
answer for some desperate newbie.
I no longer have the problem with the speedtouch modem but I don't know what the cause of the problem was. As the system freezes where coming along regularly and were doing no good to the hardware in my system I went for the classic escape... The re-installation. Good in a way as I had the chance to remove all those 'tried once' applications that were lurking in the background.
Following the re-installation all was hunky-dory!
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