axiosphere

This is my software development blog - a collection of solutions for problems I've encountered, in particular those for which the answer was not easily found.   If you find anything here useful, feel free to share.   Links: vanwinter.net linkedin.com/in/vanwinter

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Linux - audio plays just a bit too fast...

This problem has been bothering me for a while - audio plays just a bit too fast (by about 10%). I finally took the time to find a solution, and found the following on http://www.patrickmin.com/linux/tip.php?name=sound_too_fast. I can now listen to audio on Linux as it should be.

1. login as root 2. create ‘/etc/modprobe.conf’ if doesn’t exist (it didn’t on my CentOS machine) 3. add the following line: options snd-intel8x0 ac97_clock=48000 4. restart

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Important concept to understand. Solve problems before they happen.

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Here's a link to a Stack Overflow post of mine that details the issue and solution with using call_user_function_array() to pass a dynamic list of arrays with options to array_multisort()

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The Next Language Your Engineers Should Learn Is Product

It doesn't matter if your engineer knows the new hip language -- it matters if they understand how to hack a brilliant product.

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How to debug PHP CLI scripts with Netbeans and Xdebug

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Great example of how to use Git for a complex project.

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Dual Boot Chrome OS and Ubuntu on Samsung ARM Series 3 Chromebook (XE303C12)

The Samsung ARM Series 3 Chromebook works (and dual boots) well with ChrUbuntu, and is stable. There is a lot of conflicting information on ChrUbuntu installation settings, and it's often not clear which model a particular post is in reference to. Below is what worked for me.

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First, I installed 12.04 LTE with all settings at default:

curl -L -O http://goo.gl/s9ryd; sudo bash s9ryd

(http://chromeos-cr48.blogspot.com/2013/05/chrubuntu-one-script-to-rule-them-all_31.html)

You should now be up and running happily with Ubuntu. There are well documented solutions for the self-evident touchpad and audio problems, and also a Google Cloud Print app that works.

The only remaining unsolved mystery is that unless I shut down first, closing and then opening the lid always freezes up the device. The only recourse is to cold boot (hold down the power button until powered off, then press again to power on). This happens regardless of how long the lid was closed for, whether I was in command mode (Ctrl+Alt+F2) or not, whether I suspended the device prior, etc. Couldn't find a solution online. Any help will be appreciated.

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Dual boot works a bit differently than you might expect: You will not be able to select your operating system of choice at boot time. The Chromebook will always boot into the same OS it was previously in, unless you tell it otherwise.

To reboot from Chrome OS into Ubuntu, run:

sudo cgpt add -i 6 -P 5 -S 1 /dev/mmcblk0; sudo reboot

To reboot from Ubuntu into Chrome OS, run:

sudo cgpt add -i 6 -P 0 -S 1 /dev/mmcblk0; sudo reboot

(credit: http://chrubuntu.blogspot.com/2013/03/how-to-install-ubuntu-on-samsung-chromebook.html)

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You can dual boot more efficiently by creating aliases.

In both operating systems under your home directory (~), create/edit your .bashrc file.

Chronos user on Chrome OS will need to use vim:

sudo vim .bashrc

Ubuntu can use gedit or whatever.

Add the following line to the file in Chrome OS:

alias ubuntu='sudo cgpt add -i 6 -P 5 -S 1 /dev/mmcblk0; sudo reboot'

Add the following line to the file in Ubuntu:

alias chromeos='sudo cgpt add -i 6 -P 0 -S 1 /dev/mmcblk0; sudo reboot'

(credit: http://cr-48.wikispaces.com/Dual+Boot+Shortcuts)

Now, simply type 'chromeos' under Ubuntu to boot into Chrome OS, and 'ubuntu' under Chrome OS to boot into Ubuntu.

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Xdot Game Engine - source code on GitHub

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Barebones version of Xdot Game Engine, with the Wikipedia "multipics" game as demo. Built with Laravel MVC framework.

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(posted to Stack Overflow by vanwinter)

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CUPS Cloud Print | Niftiest Software

Google Cloud Print on Ubuntu!

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Helpful post on connecting to Wikipedia.

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Laravel 4 working example with database   

This is a really basic Laravel 4 installation, working locally on my Samsung ARM Chromebook running Chrubuntu 12.04. Includes database migrations and access.