aMule high CPU usage solution
I use aMule. But even with the SVN version from Arch Linux, it produces the same problem as I was using Linux Mint, high CPU usage problem. It works well at the beginning, but will suddenly high CPU usage, causes my laptop battery drain very fast.
So, I try to find the solution. Then, I found one solution, not like using MLDonkey or other alternatives before.
Using the aMule daemon, amuled from command line.
Linux shutdown battery draining problem solved
My HP laptop always has a shutdown problem. This problem affected the hibernation. That is, after I shutdown in Linux, my laptop battery will keep draining, and the battery is still warm after shutting down.
To solve this problem untechnically, there are two ways. Never shutdown, but restart. Because I have dual boot, there is a grub menu when startup the computer. So, during the grub menu, press the power button, this will shutdown the computer without battery draining.
Arch Linux with Canon iP1600 printer (virtualisation)
Finally, I solved the problem doing printing with my Arch Linux with Canon iP1600 printer. It is an old printer. With several tries of those drivers mentioned in forums and other discussions, I never success to use this printer with Arch Linux. That is why, whenever I want to print, I need to reboot into Windows 7, print, then reboot into Arch Linux again. This is really troublesome.
However, recently, I found a possible solution. That is using hardware virtualisation. Actually, it is using the guest OS to detect the printer, then print from the guest OS. So, my guest OS is still Windows. Meaning that, Linux is still not working with Canon iP1600. But, this solution avoid rebooting for different OSes.
Trying Arch Install Scripts
Latest Arch Linux announcement mentioned that AIF (Arch Installation Framework) is no longer included. And this installation method is replaced with Arch Install Scripts. Users who are willing to install Arch Linux need to follow the guide. So, I just tried the installation of this latest Arch Linux with the VirtualBox.
If you follow the guide accordingly, everything should be fine. But without the basic Linux knowledge, it is really a hell (I think so).
A review on several Linux major distribution with LiveCD
Use Arch Linux quite a while, I like the “pacman” command-line, simple and easy installing packages. Then I think about the other package managers such as deb with aptitude, rpm with yum or zypper or urpmi, how will they look like? Because of this, I tried several LiveCDs/LiveDVDs with VirtualBox: LinuxMint 13, Ubuntu 12.04, Fedora 17, OpenSUSE 12.1, Debian 6.0, CentOS 6.2, PCLinuxOS 2012.02, and Mageia 2.
I didn’t go through all the distribution thoroughly, just tried the installation, a web-browser, and the package manager.
GIMP does not support CMYK PSD file, then how?
I downloaded some PSD files, which is a file format by Photoshop. I tried to open it with GIMP, can be known as most popular open source image editor. However, opening the file showed some error message,
Error loading PSD file: Unsupported color mode: CMYK
Then I tried to install the “gimp-plugin-separate”, but it does not work. According to this post, the author also mentioned that “gimp-plugin-separate” does not work. But, the author mentioned some solutions. One of the solution is using “imagemagick” to convert the file into several PNG files.
Replacing OpenJDK with JRE 6 in Arch Linux
In Arch Linux Wiki page, it mentioned that OpenJDK is nearly perfect which we need not to install Oracle proprietary Java. But sadly to know, there are some Java applet which needs Java Runtime Environment version 6 instead of 7. That means, neither OpenJDK nor Oracle proprietary Java 7 works.
Therefore, I need to replace the jdk7-openjdk, jre7-openjdk, and jre7-openjdk-headless with AUR jre6 and jdk6. Besides that, icedtea-web-java7 is also no needed.
Rooting Android manually
In the previous post, I mentioned about rooting the Android emulator. Now, rooting the real Android phone is another thing, quite different from rooting Android emulator.
What is the main difference? In the Android emulator, once we “adb shell”, it is “#” as root. That is why we can remount the filesystem, and do whatever as root. In the real Android phone, once we “adb shell”, it is “$” instead of “#”. That is the main difference. That is why we cannot remount the filesystem or do whatever.
CJK fonts in Wine and also works with IBus input
CJK (Chinese, Japanese, Korean) fonts in Wine was really troublesome for me. Today, I have solved it totally. Before explaining the solution, just to say about the system environment I am using.
Arch Linux
wine 1.3.37
winetricks 20111115
ibus 1.4.0
ibus-pinyin 1.4.0
ibus-qt 1.3.1
ibus-table 1.3.9.20110827
ibus-table-extraphrase 1.3.9.20110827
ibus-table-wubi-git 20110410
Problem
I have installed all the fonts using winetricks with allfonts. I have also used winetricks to set fakechinese, fakejapanese, fakekorean. But none of these tricks work fine on my Wine.
The way of data recovery
Beginning
Recently, I accidentally dropped down my 320G USB external hard disk. This make me very sad. Because I got some precious data in the hard disk. The hard disk is unable to be detected on Windows 7. Then I tried to connect with two USB ports to provide more power to the hard disk, hopefully it was detectable. Yes, it was detected. Then I immediately used
[code] CHKDSK /v /f /x f: [/code]