Jun 30

Setup cpufreq and keep your laptop/netbook cooler on PCLinuxOS

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cpufreq refers to the kernel infrastructure that implements CPU frequency scaling. This technology enables the operating system to scale the CPU speed up or down in order to save power. CPUs running at full power of course generate more heat. Here is how I set up cpufreq on PCLinuxOS. This works for me. Maybe it will work for you too.

I have these packages installed.

[root@thenudiebar ~]# rpm -qa|grep cpufreq
cpufreq-1.0-28pclos2010
cpufrequtils-008-1pclos2010

In the root terminal I type:

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

I get the frequencies available to me. The one to the left is the highest and the one to the right is the lowest.
2800000 2100000 1600000 800000

Then I edit /etc/sysconfig/cpufreq file and add the minimum and maximum.

Looks like this:

# set cpufreq governor if defined
# possible choices are: ondemand powersave userspace performance
GOVERNOR=ondemand

# minimum frequency
MIN_FREQ=800000

# maximum frequency
MAX_FREQ=2800000

# Uncomment to use acpi-cpufreq as fallback
#USE_ACPI_CPUFREQ=yes

Then I go into the PCLinuxOS Control Center – System – Services to start at boot and set cpufreq to start at boot. Once I reboot I open a terminal and check the status with

[texstar@thenudiebar ~]$ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
driver: powernow-k8
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 8.0 us.
hardware limits: 800 MHz – 2.80 GHz
available frequency steps: 2.80 GHz, 2.10 GHz, 1.60 GHz, 800 MHz
available cpufreq governors: ondemand, conservative, powersave, userspace, performance
current policy: frequency should be within 800 MHz and 2.80 GHz.
The governor “ondemand” may decide which speed to use
within this range.
current CPU frequency is 800 MHz

Cha-ching!!!

Bonus Tip! Install CpuFreqDisplay plasmoid from get more widgets and add it to your KDE taskbar to see it in action.

written by admin

Jun 30

Review – PCLinuxOS LXDE 2011.6 – Excellent Lightweight

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There were a couple of comments posted to my previous write-up of PCLinuxOS KDE 2011.6 which said that the LXDE version was already available. In fact I had noticed the ISO files for it when I downloaded the KDE distribution, but since it had not been “announced” on the PCLinuxOS Web Page I decided not to write about it at that time. Those comments pointed me to the Release Announcement for the LXDE version, so I have now downloaded it and installed on a couple of netbooks. Here are my first impressions.

I will start by saying that pretty much everything that I wrote about PCLinuxOS KDE 2011.6 applies to this LXDE version as well. Download (from the same mirrors), convert and installation are all the same.
 
ZDNet UK / Blogs / Jamie’s Mostly Linux Stuff

written by admin

Jun 30

PCLinuxOS LXDE 2011.06 and PCLinuxOS LXDE Mini 2011.06

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PCLinuxOS LXDE 2011.06 for 32 and 64 bits computers is now available for download. A 64 bit only release will be available in the coming weeks. PCLinuxOS LXDE 2011.06 features the following updates.

What’s new:

Kernel – The kernel was updated to version 2.6.38.8. Additional kernels are available from our repositories such as a PAE kernel for computers with more than 4 gigs of memory. A BFS kernel for maximum desktop performance and a standard kernel with group scheduling enabled.

Xorg – Xorg server was updated to version 1.10.2. Mesa updated to 7.10.3 and libdrm to version 2.4.26. This update brings enhancements to the PCLinuxOS desktop including speed, 3D desktop support for most Intel, Nvidia and AMD/ATi video cards, better font rendering, black screen fixes for most Nvidia cards, better Flash playback and more. The most recent versions of Nvidia and AMD/ATi video drivers are included on the LiveCD and automatically configured for you. The bad news is users with older legacy video cards included in most dated computers may not function properly due to many deprecated xorg video drivers.

Toolchain – Gcc software compiler was updated to version 4.5.2 and glibc updated to 2.10.1. Locales were updated to version 2.12.1.

Package Manager – RPM was updated to version 4.8.1. apt-get and the Synaptic Package Manager were also updated to work with the updated rpm packages. yum and yumex will be available in the coming weeks as an alternative package manager.

Theme Update – The 2011 release received a full makeover. PCLinuxOS features a new brush metal theme including updates to grub, plymouth, gdm and application splash screens. Additional themes are available as well as our previous theme from our software repository.

Remastering Tools – mylivecd was updated to work with the latest release. mylivecd added the ability to install PCLinuxOS from the boot menu without having to go to the desktop first. There are 3 compression schemes available now for remastering your installation. xz maximum compression, xz normal compression and gzip for fast compression. xz max takes longer to generate the LiveCD but produces the most compressed image where as gzip will create a LiveCD fairly quick but the compressed image will be larger. mylivecd can also generate a LiveDVD with up to 4 gigs of compressed data. Usually a 10-12 gig installation will compress into a 4 gig DVD.

Software – PCLinuxOS 2011 LiveCD come with the latest versions of most popular programs such as Firefox 5.0. OpenOffice Manager has been replaced with LibreOffice Manager. Due to the limited size of the LiveCD the office suite is not included but can be installed through the LibreOffice Manager after hard drive installation. Addlocale has updated translations and can convert a PCLinuxOS installation into over 70 different languages. The software included on the LiveCD was based on community feedback as to what the PCLinuxOS users wanted to be included by default.

CD/DVD burning – Brasero is installed as the default burner software, rather than grafburn.

PCLinuxOS LXDE-Mini 2011.06 ISO is available through the following torrent link from our wonderful friends at ibiblio.org.

http://torrent.ibiblio.org/doc/pclinuxos-live-cd-2011-6-release/201/torrents

edit: Torrents of full and mini available at:

http://linuxtracker.org/

PCLinuxOS LXDE-Mini and PCLinuxOS LXDE are available on the following mirrors:

http://ftp.heanet.ie/pub/pclinuxos/live-cd/

http://distrib-coffee.ipsl.jussieu.fr/pub/linux/pclinuxos/live-cd/

http://ftp.vim.org/ibiblio/distributions/pclinuxos/pclinuxos/live-cd/

http://ftp.nluug.nl/ibiblio/distributions/pclinuxos/pclinuxos/live-cd/

http://na.mirror.garr.it/mirrors/pclinuxos/live-cd/

http://pclosusers.com/isos/

*Please note existing PCLinuxOS users who have been keeping up with their Synaptic Package Manager updates do not need to download and install this release as you are already updated.

written by admin

Jun 29

Chromium Browser gets an update

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Google Chromium browser received an update today to version 12.0.742.112 which is a minor update from their stable branch and fixes various security related issues. This update will be available in your Synaptic Package Manager if you have this browser installed .

written by admin

Jun 28

Opera Browser gets an update to 11.50

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The award winning web browser has been updated to 11.50 for PCLinuxOS users and will appear in your Synaptic Package Manager updates if you have this browser installed. Opera 11.50 is a recommended upgrade offering new and improved features, plus security and stability enhancements. A full changelog can be found here.

written by admin