Solution to errors and other computer problems

code example:

    uint32_t a = 5;     int b = 10;              if ((a-b) > 0)         printf("%d is > than %d \n", a, b);     else         printf("%d is <= than %d \n", a, b);

output: 5 is > than 10

Our brains are the most bug ridden pieces of junk since Internet Explorer.

Press and hold the Shift key while selecting the Shutdown option in Windows 8. This will make the PC perform a full shutdown instead of a hybrid shutdown. Then F12 can be pressed successfully during startup to enter the boot menu.

I've wasted 2 days trying to make it work... For this you will need a free Oracle account. 1.) Download this version of the C++ Connector (mysql-connector-c++-noinstall-1.1.0-win32) http://dev.mysql.com/downloads/mirror.php?id=393791 2.) Download this version of the C Connector (mysql-connector-c-6.1.5-win32) http://dev.mysql.com/get/Downloads/Connector-C/mysql-connector-c-6.1.5-win32.zip 2.) Download boost library from boost.org http://sourceforge.net/projects/boost/files/boost/1.56.0/boost_1_56_0.zip/download 3.) Extract and add them to your include directories like this: (Project -> Properties (Alt+F7) -> C/C++ -> General -> Additional Include Directories) path\mysql-connector-c++-noinstall-1.1.0-win32\include\cppconn; path\mysql-connector-c++-noinstall-1.1.0win32\include; path\boost_1_46_1; 4.) Add the lib folder to your Additional Library Directories (Project -> Properties (Alt+F7) -> Linker -> General -> Additional Library Directories) path\mysql-connector-c++-noinstall-1.1.0-win32\lib path\mysql-connector-c-6.1.5-win32\lib 5.) Add these to your Additional Dependencies (Project -> Properties (Alt+F7) -> Linker -> Input -> Additional Dependencies) mysqlcppconn.lib libmysql.lib 6.) Copy libmysql.dll from path\mysql-connector-c-6.1.5-win32\lib and mysqlcppconn.dll from path\mysql-connector-c++-noinstall-1.1.0-win32\lib to your project folder and add them to the project (Shift+Alt+A) 7.) Redefine the config.h line 60 to be //typedef __int8 int8_t; typedef signed char int8_t;

After trying other solutions using UNetbootin and GParted without any results, I found the best way to write a Windows 8.1 iso image on a USB sti ck in Ubuntu 14.04: using WinUSB.

To install it, do this:

sudo add-apt-repository ppa:colingille/freshlight sudo sh -c "sed -i 's/trusty/saucy/g' /etc/apt/sources.list.d/colingille-freshlight-trusty.list" sudo apt-get update sudo apt-get install winusb

or manually download and install it from here.

The best guide to install java on Ubuntu and also to install the java plugins for mozilla firefox and chromium.

Software to warm up your computer display at night, to match your indoor lighting.

I had a problem with the touchpad scrolling on ubuntu with my hp pavilion g6 and it seems the problem occurs on several other models which use 2 fingers for scrolling.

Solution: go to System Settings -> Mouse and Touchpad -> Touchpad (second tab) -> Scrolling and check Two-finger scrolling and enable horizontal scrolling.

forget about this tedious solution: http://errorsolving.tumblr.com/post/15261299464/recover-ubuntu-after-installing-windows

Now there is a really simple one:

install Boot-Repair in Ubuntu

1. boot in ununtu using a live cd (or usb stick with ubuntu)

2. install boot-repair: 

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update sudo apt-get install -y boot-repair && boot-repair

How to install the USB stick from RDS (Digi Net Mobil) on Ubuntu 11.10:

1. Insert the stick

2. when the green light on it turns on, go to system settings -> network -> mobile broadband

I encountered a strange situation when trying to install Ubuntu 11.10 x64 on a brand new HP Pavilion g6 1209sq.

A solution for the moment is quite simple: increase the brightness of the screen (by pressing F3 without fn key!).

My way to reboot ubuntu after installing windows:

Boot the LiveCD Desktop from a LiveCD or from a memory stick.  

Open a terminal by selecting Applications, Accessories, Terminal from the menu bar and enter each row separately:

sudo su fdisk -l => it will give you the partition sdaX with linux mount /dev/sdaX /mnt mount --bind /dev /mnt/dev mount --bind /proc /mnt/proc cp /etc/resolv.conf /mnt/etc/resolv.conf chroot /mnt grub-install --recheck /dev/sda reboot

additionally, you could use sudo update-grub

I upgraded Ubuntu from 10.10 to 11.04 and the dual boot manager I'm using, StartUp-Manager, acts weird: it always boots to Ubuntu (the first item in the list), although I choose Windows as default operating system.

Solution

Count the line number on the boot screen on which Windows (or other option you want as default) is. Go to StartUp-Manager and choose the option which is on that line number, although it might not correspond to the option you wish. It seems that if the options in the boot menu are less than the ones in the manger, and you choose one of the options on the last lines, the program will always set the first item in the menu as default.

If you work with OpenGL in Java you might stumble upon this error when trying to run the program although you added the jogl libraries to the build path:  

Exception in thread "main" java.lang.UnsatisfiedLinkError: no jogl in java.library.path

Solution:

First step: Make sure you added all the required libraries to the build path. The files which I am using for all my OpenGL applications are: gluegen-rt.dll, gluegen-rt.jar, jogl_awt.dll, jogl_cg.dll, jogl.dll and jogl.jar.

Second step: Write the following line to the VM arguments (not Program arguments): -Djava.library.path=lib, where lib is the directory where the jogl libraries are found. In Eclipse the VM arguments can be found in the Arguments tab from Run Configurations, under the Program arguments.