Arkham’s Eyrie

If you are terminal vim users, I’m sure you have tried to copy/paste text into a file and thought “Wtf, this is pretty damn wrong” seeing something like this:

void
randomize (void)
{
       struct timeval *tv = malloc (sizeof (struct timeval));
            struct timezone *tz =
                  (struct timezone *) malloc (sizeof (struct timezone));
                 gettimeofday (tv, tz);
                      srand (tv->tv_usec);
                           free (tv);
                                free (tz);
                            }

That’s called vi staircase effect.

The solution is to type:

:set paste

before pasting and

:set nopaste

after finishing.

Alternatively, just add to your ~/.vimrc:

nnoremap <silent> <F12> :set paste!<CR>

to press F12 for toggling between paste and nopaste conditions.

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Tags: howto, linux, vim

Download the source here.

Now open a root terminal and create the folder:

mkdir -p /usr/src/modules

Move the package to the new folder and move into it:

mv <gspcav1_package> /usr/src/modules

cd /usr/src/modules

Extract and move into it:

tar -xzvf <gspcav1_package>

cd <gspcav1_folder>

Compile and install:

make && make install

Remove eventually previous version of the module and load the new one:

modprobe -r gspca && modprobe gspca

Plug-in the webcam, and you should see something in dmesg.
Now you can just test with

mplayer tv:// -tv driver=v4l:width=352:height=288:device=/dev/video0

or using programs like xawtv, camorama, amsn or skype. Have fun

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Tags: howto, ubuntu, webcam

I’ve installed the Nvidia driver from the binary package and when I restarted, X couldn’t start and gave me a nice blue welcome screen; the X log told me that my kernel module version was 1.0-7184 and my nvidia driver version was 1.0-9755.

I tried with

sudo apt-get remove --purge nvidia-kernel-common

but the fine ubuntu hugemetapackages&&weirddependencies system suggested me to remove all my restricted kernel modules.

So I ran

sudo vi /etc/default/linux-restricted-modules-common

and added nvidia to blacklist the restricted nvidia module.

Everything works fine now, btw.

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Tags: howto, nvidia, ubuntu

1 ) Put a Ubuntu CD in your CD/DVD drive, reboot, and set the BIOS to boot from the CD drive. Wait until you see the Ubuntu desktop

2 ) Go to Applications -> Accessories -> Terminal and gain root priviledges with

sudo su

3 ) Load your keyabord map with

setxkbmap language_code

Example:

setxkbmap it

4 ) Create a new file with

nano /etc/apt/apt.conf

5 ) Write the line

Acquire::http::Proxy "http://[user]:[pass]@[proxy_ip]:[port]";

Example:

Acquire::http::Proxy "http://camp:1234@192.168.10.4:3128";

6 ) Ctrl + O to save and Ctrl + X to exit

7 ) Go to System -> Preferences -> Network Proxy and fill the proxy settings (don’t forget to click on advanced, if the proxy requires authentication)

8 ) Launch the Ubuntu usual installer

9 ) Cross your fingers and pray thy Holy Shuttleworth to have pity for thy damned soul

Here you go!

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Tags: howto, install, proxy, ubuntu