Adobe Reader cht fontpack for Ubuntu

- Install adobereader 9 in s/w center
- download the fontpack from [1]
- unpack the fontpack and execute the INSTALL file
- Done

[1] ftp://ftp.adobe.com/pub/adobe/reader/unix/9.x/9.1/misc/

How to change the "indicator" default setting, like mail agent

There is no setting option in gconf-editor or panel properties.
But you can just use the file to change the preferred application.

- In /usr/share/indicators/messages/applications/ there are some files, like empathy/evolution/gwibber in my folder by default.
- You can add a "thunderbird" file.
- And add a line in it as "/usr/share/applications/thunderbird.desktop".
- Then~~~you will see the indicator show you "Mozilla Thunderbird" dynamically.

Enable/Calibrate touch screen on EeeTop ET1602 for Ubuntu 10.04 (Lucid)

Have a chance to port Lucid on the EeeTop machine. There are some problems in touchscreen and resolution, and here is how to fix it.

1. touchscreen
In Lucid, evdev is the default driver for X input devices, but it's not useful for this type machine. So you need to install the "evtouch" driver, the package name is "xserver-xorg-input-evtouch".

aptitude install xserver-xorg-input-evtouch

Then you need to modify the default xorg.conf (create a new one under /etc/X11/), and below is the details.

--------------------------
Section "ServerLayout"
Identifier "Default Serverlayout"
Screen 0 "Default Screen" 0 0
InputDevice "Touch0"
EndSection


Section "Device"
Identifier "Configured Video Device"
Driver "intel"
Option "monitor-VGA" "VGA"
Option "monitor-VGA1" "VGA1"
Option "NoDCC"
Option "FramebufferCompression" "off"
EndSection


Section "InputDevice"
Identifier "Touch0"
Driver "evtouch"
Option "device" "/dev/input/evtouch"
Option "MinX" "1"
Option "MinY" "1"
Option "MaxX" "4096"
Option "MaxY" "4096"
Option "ReportingMode" "Raw"
Option "Emulate3Buttons" "false"
Option "Emulate3Timeout" "50"
Option "SendCoreEvents" "on"
Option "MoveLimit" "0"
EndSection

Section "Monitor"
Identifier "VGA"
ModeLine "1366x768" 85.600 1366 1430 1542 1798 768 771 777 795 +hsync +vsync
EndSection

Section "Monitor"
Identifier "VGA1"
ModeLine "1366x768" 85.600 1366 1430 1542 1798 768 771 777 795 +hsync +vsync
EndSection

Section "Monitor"
Identifier "Configured Monitor"
ModeLine "1366x768" 85.600 1366 1430 1542 1798 768 771 777 795 +hsync +vsync
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
DefaultDepth 24
Subsection "Display"
Modes "1366x768"
EndSubsection
EndSection

--------------------------

And also need to add "69-touchscreen.rules" udev rule under /etc/udev/rules.d
notes: check sysfs by the command
udevadm info -ap /sys/class/input/event8

--------------------------
KERNEL=="event*", SUBSYSTEM=="input", ATTRS{idVendor}=="1bfd", ATTRS{idProduct}=="1688", SYMLINK+="input/evtouch"
--------------------------

BTW, explain how I have the right "ModeLine" parameters here.
We can use the "PowerStrip" tool (Windows tool) to have the values.
Below is the link to teach you how to get the right values by PowerStrip.

http://www.x.org/wiki/FAQVideoModes#ObtainingmodelinesfromWindowsprogramPowerStrip

Some Linux tips

1. share the shell screen
user a# screen -S test
user b# screen -x test
then both a and b can use the shared shell screen to watch the status.

2. how to show your IP address (a little boring and stupid...^^)
ifconfig | grep "eth0" -A 1|sed '1d'|awk '{print $2}'|awk -F: '{print $2}'

3. how to show your VGA driver name (still need to see /var/log/Xorg.0.log for details)
lspci -v|grep VGA -A 10|grep modules

4. How to clean all gnome panel applet default settings
gconftool-2 --recursive-unset /apps/panel
kill gnome-panel --> it will make gnome-panel refresh again.

-- Need to maintain ---

Linux sound architecture - pulseaudio/alsa/codecs

Below is the processes of sound architecture what I know.
Only base on alsa architecture, and be aware OSS is not supported by Linux anymore.
*recording
mic --> audio codec --> audio codec interface (snd_hda_codec) --> alsa kernel driver --> /dev/snd/* --> alsa api --> alsa lib (you can have the different recording type here) --> sound recorder

*playing
totem --> gstreamer --> pulseaudio --> alsa lib --> alsa api --> alsa kernel --> /dev/snd/* --> alsa kernel driver --> audio controller driver --> audio controller --> speaker

** Vocabulary **
gstreamer : for some codecs that default doesn't support, like mp3 or divx.
alsa kernel driver : like soundcore, snd, snd_pcm, snd_timer...etc
audio controller driver : snd_hda_intel
audio codec interface : snd_hda_codec

** notes **
gnome-sound-recorder only support ogg and wav
packages:
helix for realplayer (non-free), and will touch the alsa lib directly.
gstreamer for the others free audio codecs, below lists the main packages.
-gst-plugins-base
contains a basic set of well-supported plug-ins
-gst-plugins-ugly
contains a set of well-supported plug-ins, but might pose problems for distributors
-gst-plugins-bad
contains a set of less supported plug-ins that haven't passed the rigorous quality testing we expect

tips or useful diag tools under Linux

* audio
audacity -- professional audio editor
(help to see the audio wave pattern or spectrum)
amixer -- command line mixer tuning program
(another is alsamixer in GUI mode)
arecord -- alsa command line audio recording program

*video
glxgears -- 3D testing tool
(quick to figure out the 3D performance)
xrandr -- command line interface to check and use the video port
(can check the all connecting video interface and output the video signal to dedicate device)

where is the Firefox default settings, like cookies

In /home/username/.mozilla/firefox there has a file named "profiles.ini".
This file contains the [Profile0], and that defines which folder will be used for default settings, use "abc" to be example.
That means /home/username/.mozilla/firefox/abc will have lots of files about the firefox settings.
Like cookies, the file is "cookies.sqlite".