Troubleshooting is a form of problem solving, often applied to repair failed products or processes.

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1answer
3k views

Why does my mouse stop working a short time into my session?

Running Easy Peasy 1.6 clean installation. Hardware - EEE PC 900-HA. About 10 or so minutes into a new session after a reboot my mouse will stop working. It will still move the pointer, but it will ...
4
votes
2answers
777 views

How to troubleshoot the old X applications working incorrectly on modern X servers?

I have an old X application provided as a part of a complicated signal processing package. The application resides on the display-less server, and clients having different X-servers connect to it. On ...
2
votes
2answers
55 views

How can I determine which service run during bootup is responsible for a certain behaviour?

On my Fedora 14 system, some strange bind mounts have appeared in the list of mounts. They appear on every bootup. I can unmount them with umount -l, but I would like to find which package is mounting ...
5
votes
2answers
574 views

Suggestions needed to debug why ps -ef gets stuck

A few of my processes consume 100% cpu. I'm trying to figure out which scripts are causing it I tried running strace ps -ef: open("/proc/PID/status", O_RDONLY) = 6 read(6, "Name:\textract\nState:\tR ...
3
votes
1answer
513 views

good unix troubleshooting book [closed]

I've been trying to learn *nix and I think I'm doing pretty good as far as basic commands, and I think I understand a lot of the "monitoring" type commands etc... in short, I think I'm doing okay with ...
2
votes
2answers
3k views

How do I reinstall software properly in Debian?

I got myself into trouble with mysql on debian lenny (details). I tried these commands: dpkg-reconfigure mysql dpkg --purge mysql-server apt-get install mysql-server mysql_install_db and variants ...
1
vote
2answers
278 views

How come I suddenly don't have any audio?

Just a few minutes ago my sound was working, and then it stopped! I suspect it was caused by me checking out some video editors. How do I go about troubleshooting this? What I've so far tried: I ...
6
votes
1answer
948 views

What would cause “crossover” between two USB2 webcams when using motion?

I am using the Motion package for linux to act as a security system with two Microsoft LifeCam HD-5000 webcams. In general it's working very well but I'm experiencing a weird issue. Every now and then ...
7
votes
3answers
769 views

Best practise to diagnose problems [closed]

As Linux/Unix users, we run into problems frequently. And after long hours of problem solving, we develop the skill of debugging. Now, what are good principles, methods or best practises when trying ...