Posts tagged ‘hardware’

Printer fix after installing Ubuntu 10.10 (Lexmark E120n)

Yesterday I did a fresh install of Ubuntu 10.10 and today when I tried to print out some work I got an unpleasant surprise:

As always Ubuntu found my Lexmark E120n drivers when I turned on the printer, but when I tried to print out my work the it just made it’s usual noises and movements but without grabbing any paper. First I thought that it maybe were broken, but then I remember that I used the printer yesterday with Ubuntu 10.04 and it worked just fine. So I tested it with Peppermint Ice, and later with the Ubutntu 10.04 live CD were it worked like a charm.

So I’m pretty sure this is a Ubuntu 10.10 issue, I don’t know if other than me are affected, anyway this is the fix I found after realizing that I could manually edit the .ppd file:

  1. Download lex120n.txt (it’s an old .ppd file, I just had to change the file name to be able to upload it)
  2. Open “Nautilus” as root (gksudo nautilus)
  3. Goto /etc/cups/ppd
  4. Open the file named Lexmark-E120n.ppd
  5. Copy all the text from lex120n.txt and paste it into  Lexmark-E120n.ppd (after removing all the text of course)
  6. Restart and voilà, the printer works properly again ^^

You can also rename lex120n.txt into Lexmark-E120n.ppd and move it to /etc/cups/ppd instead of copying and pasting.

Thanks to the people that tried to help me at Linuxquestions.org before I found the solution myself :)

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11/10/2010 at 20:18 1 comment

How to get hardware information in Linux?

This guide requires use of the Terminal, and can be used on all Linux systems (as far as I know).

The package were going to use is named Hardware Lister (command: lshw).

Most Linux systems and distros comes with this pre-installed as default, but if you should need to install it you just write this in your Terminal:

APT (Debian, Ubuntu…): sudo apt-get install lshw

Yum (Fedora, Red Hat…): sudo yum install lshw

If your system doesn’t use APT or Yum (and doesn’t have lshw pre-installed), you can visit this site for installation instructions: Hardware Lister (lshw).

But as I said most systems comes pre-installed with this package as default, so you doesn’t have to use the commands mentioned over unless this command doesn’t work:

sudo lshw

If you got lot’s of text about your system you have it installed. Yey! But if you get the message bash: lshw: command not found you will have to install it.

This single command gives you all the information you will need about your hardware. But what if you just want some part of this information? No problem, just use these commands:

  • Short summary of all the important information: sudo lshw -short
  • Information about your system (like manufacturer, serial-number, type etc. ) : sudo lshw -class system
  • For memory (RAM, BIOS, firmware etc. ) information type:
    sudo lshw -class memory
  • CPU info: sudo lshw -class cpu
  • Information about your disk(s) sudo lshw -class disk
  • Network information: sudo lshw -class network
  • Disk volum information sudo lshw -class volume
  • Example of how you can combine these commands: sudo lshw -class system -class memory -class cpu

Like you maybe has understood by now, the information in ishw is stored in classes (therefore the -class). So this is just some examples, and if you want the whole list of classes you can visit Hardware Lister’s homepage (or just use sudo lshw and try to memorise the classes by yourself)

But what if you want to store this information in a file, so you dosn’t have to do the lshw information everytime your wondering about some of your hardware info? That’s no problem either :)

  • Store the information as a .txt file: sudo lshw > hardware-info.txt
  • Store it as a HTML file: sudo lshw -html > hardware-info.html
  • And finally as a XML file: sudo lshw -xml > hardware-info.xml

Note that all these commands will save the files in your home folder, and that the commands of course can be combined with the ones mentioned over for you specific needs (but if your not really into using the terminal yet I would stay with the ones I have mentioned here for now).

If your kind of scared of using the Terminal there’s a option for you too: Just go to Synaptic and do a little search for lshw-gtk (gtk-lshw in some distributions) and install it. You can also install it by typing this command in the Terminal sudo apt-get install lshw-gtk (ATP).

02/06/2010 at 20:01 Leave a comment


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