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Old 01-16-2010, 05:39 AM   #1
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Please help! Linux hardware

Hi all, I am a newbie to Linux. I got a printer and would like to hook it up with my Linux box. Normally, as a Windows user, people would think about the printer's driver so that they can use the printer. Or they probably go to device manager to find out what device doesn't have driver.

As a common sense, Linux would require a driver for the printer if it can't find any built-in driver.So what beats me is how to find out (using command or using GUI etc) what devices the Linux box's already recognized?
Any command or GUI?

Another question is my linux box's CPU usage often spikes up to nearly 80% just to browse web. I used the "top" command to find out what's happening and firefox is the cause. Does it mean that my CPU is problematic or any hardware issue? I ve just bought my laptop for 6 months. So what can I do? please advise

My last question is CPU critical high temperature. I often see this message whenever I start up my linux box. I go to BIOS to check system health and notice that everything is normal (CPU is around 34 degree). But it keeps popping up this message. I also applied thermal to the CPU but it doesn't help at all. I installed more fans and even put it into air-con room, it still popping up that message. My linux box is around 2 years old. So should I change the box or what? Please advise...

Thanks for your help and your time
Old 01-16-2010, 07:03 AM   #2
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What make and model is the printer?
Try http://localhost:631 in Firefox.
Old 01-16-2010, 07:04 AM   #3
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More information...

You need to tell us which linux distribution you are using and which printer and other devices you are having trouble with in order to get a qualified response.

Don't worry about your CPU usage spiking when your system is active, that's the way it functions, changing from full to minimum use to perform several things at once.

The BIOS temperature reading is the one you should pay attention to; software measuring systems are not so reliable that you should worry. If you run your system as you normally would, then reboot, open the BIOS and check the temperature, and find that it is normal, rest easy.

You might get help in fixing that persistent warning message if we knew more.

Last edited by thorkelljarl; 01-16-2010 at 07:09 AM.
Old 01-16-2010, 07:12 AM   #4
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The first thing to do is install cups for your system. You should be able to find it with your package manager.

Next, go here -->

There are data bases for printers, and drivers. Look up your printer, it will tell you if the printer is supported, and what driver to install. Once you know the driver, look in your package manager. If you can not find it there, there may be other sources for the driver.

Install the driver. Then go into cups to configure. That is done through your web browser, type http://localhost:631 in the location bar. Then click Administration and Add Printer. You will need the root password to add the printer. Once added, click 'print test page'. If all has gone well, it will print.

CPU usage, how long does the 80% last? Short periods may be normal, long periods of time are not. I have see a lot of threads on this topic. Try a board search to see what solutions others have come up with.

Can not help with the temp question. I don't know what 'normal' is for your system. 34 doesn't sound hot to me, but the again, I don't know what is normal.
Old 01-16-2010, 08:31 AM   #5
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I think that 34 degrees celsius is fine for a CPU. Mine runs at about 40. The manual for my CPU (Intel Core i7) says that the maximum safe temperature is 67C.

And short bursts of high CPU activity are fine. Usually if the high CPU activity goes on for a long time it means something bad happened (unless you are compiling software or calculating pi, etc).
Old 01-16-2010, 06:49 PM   #6
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Thanks everybody!


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