Category Archives: PC Tips

Skype 4.2 audio problem on ubuntu 13.10


After upgrading my Ubuntu 13.10 Skype don’t capture my audio input. here is the error

ALSA lib conf.c:4694:(snd_config_expand) Unknown parameters CARD=MID
ALSA lib control.c:953:(snd_ctl_open_noupdate) Invalid CTL default:CARD=MID

Solution:

Installing ‘libasound2-plugins:i386’

sudo apt-get install libasound2-plugins:i386

Some ideas presented here: http://community.skype.com/t5/Mac/Debian-7-0-Skype-crashed-when-making-call/td-p/1371149

 

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php is not working well on ubuntu 13.10 and mcrypt is missing(solution)


First install it…

sudo apt-get install php5-mcrypt

Now move it to php modules directory & enable the module

mv -i /etc/php5/conf.d/mcrypt.ini /etc/php5/mods-available/
sudo php5enmod mcrypt

Now restart the server

for Apache:

sudo service apache2 restart

for nginx:

sudo service nginx restart

Get your computer hardware information in UNIX like systems(nix*)


Dmidecode reports information about your system’s hardware as described in your system BIOS according to the SMBIOS/DMI standard (see a sample output). This information typically includes system manufacturer, model name, serial number, BIOS version, asset tag as well as a lot of other details of varying level of interest and reliability depending on the manufacturer. This will often include usage status for the CPU sockets, expansion slots (e.g. AGP, PCI, ISA) and memory module slots, and the list of I/O ports (e.g. serial, parallel, USB).

Supported OS:

  • Linux i386, x86-64, ia64
  • FreeBSD i386, amd64
  • NetBSD i386, amd64
  • OpenBSD i386, amd64
  • BeOS i386
  • Cygwin i386
  • Solaris x86
  • Haiku i586

Install it with your package manager base on your OS. here i’m mention on ubuntu

$sudo apt-get install dmidecode

run it

$dmidecode

Screenshot from 2014-01-04 00:56:46

How to remove BIOS password


WHAT IS BIOS PASSWORD?

Bios password information is normally store on a CMOS battery. Bios password is a type of security protection measure to stop unauthorized person making hardware configuration changes on system devices (Example: BIOS’s allow you to require a password to be entered before the BIOS setup may be accessed) Meanwhile, bios password also use security protection such as Some BIOS’s allow you to require a password be entered before the system will boot.



Forgot your motherboard BIOS password? No problem!!!!!!!!Here are three tutorials how to reset or remove Bios Password that allow clear your CMOS password. The first method is removing the battery on motherboard and second method is reset bios password on windows.



To remove the bios password on CMOS battery, first you need unplug all the power source and USB cable. Then open the desktop casing and allocate the flat, circular and metallic CMOS battery. It should look something like the picture to the right.This reset bios password is more suitable for desktop user. It is no recommended for laptop user unless you are experienced working with laptop hardware or the laptop warranty expired long time ago.Once allocated, take out the CMOS battery and wait 10 – 25 minutes before putting it back in. The reason for this wait is because the computer can still store power in its capacitors even though everything is unplugged. The waiting period allows enough time for them to discharge.After that, Plug back the CMOS battery. Then all bios password will be clear and all computer devices hardware setting will be set factory default setting. In some cases, if you get weird error messages during bootup now, you will need to goto “Load BIOS Defaults” in BIOS and save the changes to fix them.

Matrix Effect using notepad


        This is amazing notepad trick which will display matrix effect like you might have seen in movies, that is numbers flashes in green colour. Basically we will be creating a small batch file in notepad.

  • Go to Notepad and copy below codes

##############################CODE#######################################
@echo off

color A

:start

echo %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random% %random%

goto star

######################################################################

  • Save this file as matrix.bat 
  • Now open this file as see matrix effect on your screen.

How to try the Windows 8 Metro interface free


Windows 8 is still just a promise, except for a few folks with developer’s builds. If you want to try out the fabled Metro interface on your computer, there’s now a solution. The metro7 app changes theWindows 7 interface to make it look and feel like Metro. Here’s how to use it:

    1.Download and install the app here.
    2.Start it up. You should see a tiled interface, though it is separate from your desktop.
    3.Click the arrow in the upper right to set your options, pin programs or Web sites to the tile screen, and more. Experiment! The built-in apps are minimal, but you can get more or add any apps or bookmarks you like.

Step 3: Settings.
   Step 3: Settings.
  
4. You can drag tiles to rearrange them, or drag down to the bottom to trash them.

Step 4: Move tiles.