Record using audacity (ubuntu sound recording)

http://anhe51.wordpress.com/2012/01/13/record-youtube-with-audacity-on-ubuntu-11-10/

Ubuntu X monitor resolution addition

In my case there is a KVM blocking the monitor detection in this case, so the resolutions are defaulted to VESA.
 
http://anhe51.wordpress.com/2012/01/30/change-resolution-of-unknown-monitor-in-ubuntu-11-10/

Add 1600 x 1200 for Viewsonic P815 on Dell 745 optiplex

xrandr --newmode "1600x1200_60.00"  161.00  1600 1712 1880 2160  1200 1203 1207 1245 -hsync +vsync

xrandr --addmode VGA1 1600x1200_60.00


Quoting blog

Change Resolution of Unknown Monitor in Ubuntu 11.10

I have the HP v185e Monitor and it was unrecognizable by my Ubuntu 11.10. The “Display” setting shows “Unknown Monitor”, and the maximum resolution I could get is 1024 x 768, the optimal resolution is 1368 x 768. I found that the “Unknown Monitor” could be set with XRandr from the posting in the Ubuntu Forum.
I did that right and the resolution is 1368 x 768, but after restarting, the resolution options were reverted back to 1024 x 768. From the Ask Ubuntu, I found that Ubuntu 11.10 have different way to permanenting the XRandr customization than it’s predecessors.

Here’s the summary (I’m using the example of adding 1440 x 900 resolution):

1. Open Terminal and type

$ xrandr

2. The XRandr will show the maximum resolution allowed like this:

Screen 0: minimum 320 x 200, current 1368 x 768, maximum 8192 x 8192
VGA1 connected 1368x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1368x768_60.00   59.9*+
   1024x768       60.0  
   1024x768_60.00   59.9  
   800x600        60.3     56.2  
   848x480        60.0  
   640x480        59.9  
   1280x800_60.00   59.8  
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)

3. Type “cvt [x resolution] [y resolution]” in the terminal, for my case is like this:

$ cvt 1440 900

4. The Terminal will show the output:

# 1440x900 59.89 Hz (CVT 1.30MA) hsync: 55.93 kHz; pclk: 106.50 MHz
Modeline "1440x900_60.00"  106.50  1440 1528 1672 1904  900 903 909 934 -hsync +vsync

5. For the next step, type:

$ xrandr --newmode [Modeline]

in my case is


$ xrandr --newmode "1440x900_60.00"  106.50  1440 1528 1672 1904  900 903 909 934 -hsync +vsync

Copy the “Modeline” configuration from the previous output

6. To add the new resolution to the “Display” option type:

$ xrandr --addmode VGA1 1440x900_60.00

Now the new resolution is ready in the “Display” option


7. To apply the new resolution, type:

$xrandr --output VGA1 --mode 1440x900_60.00

And now the screen will be in the new resolution

8. In order to make it permanent, add the resolution to /etc/X11/xorg.conf

$ sudo gedit /etc/X11/xorg.conf

9. The xorg.conf will show the output like this:

Section "Monitor"
    Identifier    "Monitor0"
    Modeline "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync
    Modeline "1368x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync
    Modeline "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Card0"
    Monitor        "Monitor0"
    SubSection "Display"
        Modes      "1280x800_60.00" "1368x768_60.00" "1024x768_60.00"
    EndSubSection
EndSection

Section "Device"
    Identifier    "Card0"
    Driver        ""
EndSection

10. Add the new Modeline and resolution, for the “Driver” in the “Section Device” I just simply type “Intel” (because I’m using intel standard graphic card), if you are using Nvidia just simply type “nvidia”. The output is like:

Section "Monitor"
    Identifier    "Monitor0"
    Modeline "1440x900_60.00"  106.50  1440 1528 1672 1904  900 903 909 934 -hsync +vsync
    Modeline "1280x800_60.00"   83.50  1280 1352 1480 1680  800 803 809 831 -hsync +vsync
    Modeline "1368x768_60.00"   85.25  1368 1440 1576 1784  768 771 781 798 -hsync +vsync
    Modeline "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Card0"
    Monitor        "Monitor0"
    SubSection "Display"
        Modes      "1440x900_60.00" "1280x800_60.00" "1368x768_60.00" "1024x768_60.00"
    EndSubSection
EndSection

Section "Device"
    Identifier    "Card0"
    Driver        "intel"
EndSection

11. Restart and see the resolution setting is now permanent

Hope it worked
–
Anton Hermansyah

python notes

__main__ statement
http://stackoverflow.com/questions/419163/what-does-if-name-main-do

raspberry pi motorola dock lashup

http://raspberry-python.blogspot.com/2012/10/risc-laptop-cables-cabos.html

RISC laptop: cables / cabos

HDMI, USB, Micro, Mini, A/B, M/F ... ?

Motorola Atrix LapDock (Micro USB B M, Micro HDMI M)

Micro USB B (F)->USB A (F) , USB A (M)->USB A (M)

Micro HDMI (F)->Micro HDMI (M) , Micro HDMI (F)->HDMI (M)

USB, HDMI

Raspberry Pi v1.1, v2.0

RPi v1.1, v2.0: 2 cables / cabos

Raspberry Pi v1.0

USB A (M)->Micro USB B (M)

RPi v1.0: 3 cables / cabos

Off

HDMI = On/Off

cifs / smbfs mount notes

http://www.thatsquality.com/articles/mounting-windows-smb-file-shares-using-cifs

Note:  from above articles writing to present, package install has changed form

apt-get -y install smbfs

to

apt-get -y install cifs-utils

Now, if it worked, you should see your mount right on the desktop. Browse through it, play music from it, watch movies from it (network speed permitting). Here are some common errors:

• mount error: can not change directory into mount target... - either you didn't create your /media/my_share directory or specified it wrong in your mount command.
• mount error 13 = Permission denied - your username and password are being rejected. Try some other combinations
• mount error 6 = No such device or address - the share_name that you specified in your mount command is not being found on the host computer. Browse the network, find that computer, and check to make sure you see the exact share name.