python_beginner's questions

I did something terrible this morning you can see here.

Now that problem was fixed , apt was working fine and so was the update manager .

after installing all updates , I rebooted.

And I could not log in. The login page will like refresh after I enter my password , every time. Then I installed KDM in place of LIGHTDM , and now I have no Unity shell , no panel , and the display settings gives an error

GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface `org.gnome.SettingsDaemon.XRANDR_2' on object at path /org/gnome/SettingsDaemon/XRANDR

Any help will be appreciated.

I did not how to put up the title of the question, so sorry.

Accidentally, I did sudo apt-get remove libusb instead of sudo apt-get remove libusb-dev.

And now nothing is working. How can I revert this?

When running uname -a, I get as output

41-Ubuntu SMP Mon Aug 13 17:59:54 UTC 2012 i686 athlon i386 GNU/Linux

Can someone please explain to me why both i386 & i686 ?

What exactly is my PC architecture and what version of Ubuntu am I using (32bit or 64bit)?

I want to add a custom driver to my kernel source.
But I have no idea how to do this.
Any help will be appreciated.
Thanks.

I have generated few .hdr files using Sketchup and V-Ray. Now I want to combine all those files to create a movie. Well it seems the best option is to use Photoshop,but I don't have Photoshop,and I don't want it.

Can any one tell me about an open source software, well equipped to do this?
I can view these files in Luminance HDR,but cant create a movie there.

I want to use EASYCAP on my Ubuntu(kernel version 2.6.30).
The problem is that ,the drivers for EASYCAP are included in kernel version 2.6.36 and higher.
I have extracted all the files corresponding to EASYCAP DRIVER from linux-2.6.36/drivers/staging/easycap.

And now i am stuck as while trying to make it it simply says
make:No targets. Stop

I could have understood if it showed that its not getting Header Files.

Any one having any idea how to do this,or how could i use EASYCAP.

any help will be appreciated.

I want to record and save say, music being played on my i-pod ,to my PC.
Is this do-able?

I was thinking if it can be done by connecting my i-pod's line-out to the line-in of my PC.

If any CLI or packages available for this?

Any help will be appreciated

I am trying to capture video(alongwith audio) from a webcam.
I need to record the video and save it to a file,for further processing.
Would like to do it through CLI.

Any ideas how to do it using ffmpeg or gstreamer.

I am getting these errors:

1.gstreamer:-  erroneous pipeline: no element "xvimagesink".  
2.ffmpeg   :-  unable to find suitable output format for video4linux2.  

Any help is appreciated.

I was trying to cross-compile a program for ARM. While compiling I was very much irritated as I had to look for a number of dependencies e.g fatal error: abc/xyz.h: No such file or directory compilation terminated.

After ensuring that compiler gets the missing files, when I recompiled, I got same error for about 30 files.

I have no idea if that is normal behaviour.

If it is normal, is there a method which can help the compiler find the dependencies on its own?

If that is not normal, then please explain what I'm doing wrong.

I want to take a picture with the webcam every N time units and store it to /tmp/somefolder/ for further use with other tools and only keep the last M images. How to do this using webcam(UNIX COMMAND)? Any help appreciated.