Tag Archives: ubuntuforums

Use mtpaint to grab a screenshot

And make it an application you can add to lubuntu panel.
Create the following file /usr/share/applications/mtpaint-grab.desktop containing :

[Desktop Entry]
Encoding=UTF-8
Name=Grab screenshot
Exec=mtpaint -s
Icon=camera
Type=Application
Terminal=false
Categories=Application;Graphics;

You can now add it to the Application Launch Bar in the Panel.

mtpaint

Reference

Ubuntu Forums post : http://ubuntuforums.org/showthread.php?t=1521606&p=9552908#post9552908

Tutorial of the Month – June 2010

June 2010 – Apparmor

What a subject.. We’ll step out of the T&T section this month to visit the Security Discussions area.
bodhi.zazen spends a lot of time in this section, educating and providing support.
apparmor (Application Armor) does what its name suggests, it helps protecting the system if an application gets compromised. apparmor works with specific application profiles that regulate and define the applications access in addition to the usual system permissions (which apparmor can only restrict).

By default, Ubuntu comes with apparmor profiles for CUPS, evince, dhclient3, firefox (which is not enabled) and the guest session.

The first thread to read is Introduction to AppArmor which is closed for posting. Two other threads are open for discussion:
Share your AppArmor Profiles and AppArmor Support Thread.

Enjoy the readings, test it out and report back in the threads!

References

UF ToM thread
Introduction to AppArmor
Share your AppArmor Profiles
AppArmor Support Thread

UF Tutorial of the week – October 12, 2009. grub2 Tutorials

I’ll make an exception and place the subject of the Tutorials in the title, as upgrading to karmic could turn being a nightmare to some.

I’ve stepped out of the Tutorial & Tips section to visit two tutorials, one of them in T&T, the other one in the current Karmic Development section. Both threads will let you know everything you always wanted to know about grub2 (but were afraid to ask). Both are from drs305. grub2 is default with Karmic and can be installed on Jaunty.

The first one, “GRUB 2 Basics” will get you started with grub2, in particular with the /boot/grub/grub.cfg and /etc/default/grub files. The second one, “Grub 2 Title Tweaks Thread” will help you tweak grub2 titles to your desire. Before upgrading to Karmic, make sure you read both of them!

Special mention to ranch hand‘s “Grub2 Introduction” for links to documentation.

Reference

UF post
UWN

UF Tutorial of the Week – October 05, 2009.

Quite often, there is a delay between latest stable application version from an upstream project and updated version from the Ubuntu repositories. This gap is quite important with ALSA. Here is a tutorial from soundcheck that will help you install the latest official stable ALSA release: “ALSA Upgrade Script“. The script should be used with caution as it installs packages itself without going through official repositories. A restore option is provided to reinstall sensitive packages and get them back to their previous Ubuntu version. Many sound issues appear to be solved by this tutorial! Sound should be treated like video via restricted hardware..

Enjoy :)

Reference

UF post
soundcheck’s tutorial on UF
UWN

UF Tutorial of the Week – September 21, 2009.

DSDT (Differentiated System Description Table) is in the BIOS and this is where the OS looks for hardware and configuration info. It sometimes needs to be adjusted, in particular regarding ACPI. 67GTA has written a comprehensive tutorial for Ubuntu and Linux Mint: “HOWTO Fix A Buggy DSDT File” which currently works only up to Jaunty 9.04 release. I’m not sure I understand all the details, but reading through the thread, members seem to be able to fix a large range of ACPI related issues.

Credits to unutbu who suggested the tutorial. As unutbu puts it:

It is kind of amazing (at least to me) that fixing one file can solve such a variety of problems.

Reference

UF post

UF Tutorial of the Week – June 1, 2009.

This week, we step again out of the Tutorial & Tips section of the forums, to highlight psyke83‘s gigantic HOWTO: Jaunty Intel Graphics Performance Guide. Intel graphic hardware is quite popular and Intel drivers code has been extensively developed. Jaunty has some problems with the latest intel drivers or acceleration method. You can choose one of the three proposed methods, from safe, to optimal and the always risky bleeding edge.

We hope this will help ou with Intel video chips, please feel free to post your questions in the thread, psyke83 is actively supporting his tutorial.

See you next week !

Reference

http://ubuntuforums.org/showpost.php?p=7365345&postcount=54