firefox crash / gimp no font - Pango-WARNING **: failed to create cairo scaled font, expect ugly output. the offending font is 'DejaVu Sans 9' 
Saturday, February 9, 2008, 11:09 - Debian/Ubuntu
Posted by Administrator
after upgrade from feisty to gutsy firefox and gimp wont work:

the solution is

dpkg-reconfigure libcairo2 libpango1.0-common
fc-cache -fs
update-pangox-aliases

http://www.mail-archive.com/debian-user ... 03742.html

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bash network calculation 
Friday, January 18, 2008, 17:02 - Programming
Posted by Administrator
IP='130.10.10.10'
NETMASK='255.255.252.0'

l="${IP%.*}";r="${IP#*.}";n="${NETMASK%.*}";m="${NETMASK#*.}"

SUBNET=$((${IP%%.*}&${NETMASK%%.*})).\
       $((${r%%.*}&${m%%.*})).\
       $((${l##*.}&${n##*.})).\
       $((${IP##*.}&${NETMASK##*.}))

l="${SUBNET%.*}";r="${SUBNET#*.}"

BROADCAST=$((${SUBNET%%.*}|256+~${NETMASK%%.*})).\
          $((${r%%.*}|256+~${m%%.*})).\
          $((${l##*.}|256+~${n##*.})).\
          $((${SUBNET##*.}|256+~${NETMASK##*.}))
SUBNET is 130.10.8.0
BROADCAST is 130.10.11.255

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xorg Xinerama / Dual Screen 
Tuesday, January 8, 2008, 11:09 - System
Posted by Administrator
The hard work with xinerama / dual screen was:

* set the monitor sync/refresh rate (it won't start without for an old crt not supporting ddc)

* set Option "NoAccel" "true" (screen distortions)

* touchpad only works with dual screen

* instabilities with two different cards (via / ati - resolved by using only ati card that has two VGA connectors)

Testing with: #> X -config /absolutepath/xorg.conf -verbose

xinerama xorg.conf:
Section "Files"
        FontPath        "/usr/share/X11/fonts/misc"
        FontPath        "/usr/share/X11/fonts/75dpi/:unscaled"
        FontPath        "/usr/share/X11/fonts/75dpi"
EndSection

Section "Module"
        Load    "i2c"
        Load    "bitmap"
        Load    "ddc"
        Load    "dri"
        Load "extmod"
        SubSection  "extmod"
                Option    "omit xfree86-dga"
        EndSubSection
        Load    "int10"
        Load    "vbe"
        Load    "dbe"
EndSection

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "ru,us"
        Option          "XkbOptions"    "grp:caps_toggle"
EndSection

Section "InputDevice"
        Identifier      "Generic Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ExplorerPS/2"
        Option          "ZAxisMapping"          "4 5"
        Option          "Emulate3Buttons"       "true"
EndSection

Section "Device"
        Identifier      "dev0"
        Driver          "via"
        BusID           "PCI:1:0:0"
        Screen          0
EndSection

Section "Device"
        Identifier      "dev1"
        Driver          "mga"
        BusID           "PCI:0:20:0"
        Screen          1
EndSection

Section "Monitor"
        Identifier  "monitor0"
        Option      "DPMS"
EndSection

Section "Monitor"
        Identifier  "monitor1"
        Option      "DPMS"
        HorizSync       28-50
        VertRefresh     60-85
EndSection

Section "Screen"
        Identifier      "screen0"
        Device          "dev0"
        Monitor         "monitor0"
        DefaultDepth    16
        SubSection "Display"
                Depth           16
                Modes           "1024x768"
        EndSubSection
EndSection

Section "Screen"
        Identifier      "screen1"
        Device          "dev1"
        Monitor         "monitor1"
        DefaultDepth    16
        SubSection "Display"
                Depth           16
                Modes           "1024x768"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
        InputDevice     "Generic Keyboard"
        InputDevice     "Generic Mouse"
        Screen      "screen0"
        Screen      "screen1" RightOf "screen0"
EndSection

Section "DRI"
        Mode    0666
EndSection

Section "ServerFlags"
        Option "Xinerama" "on"
EndSection
dual head xorg.conf:
Section "ServerLayout"
        Identifier     "X.org Configured"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" RightOf "Screen0"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
        RgbPath      "/etc/X11/rgb"
        ModulePath   "/usr/lib/xorg/modules"
        FontPath     "/usr/share/fonts/X11/misc"
        FontPath     "/usr/X11R6/lib/X11/fonts/misc"
        FontPath     "/usr/share/fonts/X11/cyrillic"
        FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/Type1"
        FontPath     "/usr/X11R6/lib/X11/fonts/Type1"
        FontPath     "/usr/share/fonts/X11/100dpi"
        FontPath     "/usr/share/fonts/X11/75dpi"
   FontPath     "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
        Load  "extmod"
        Load  "GLcore"
        Load  "dbe"
        Load  "dri"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver "kbd"
        Option "CoreKeyboard"
        Option "XkbRules" "xorg"
        Option "XkbModel" "pc105"
        Option "XkbLayout" "ru,us"
        Option "XkbOptions" "grp:caps_toggle"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/input/mice"
        Option      "ZAxisMapping" "4 5 6 7"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "auto"
        Option      "Device" "/dev/input/mice"
        Option      "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
        Identifier   "Monitor0"
        VendorName   "PHL"
        ModelName    "PHILIPS 107E"
        HorizSync    30.0 - 70.0
        VertRefresh  50.0 - 160.0
        Option      "DPMS"
EndSection

Section "Monitor"
        Identifier   "Monitor1"
        VendorName   "Monitor Vendor"
        ModelName    "Monitor Model"
EndSection

Section "Device"
        Option "NoAccel" "true"
        Identifier  "Card0"
        Driver      "ati"
        VendorName  "ATI Technologies Inc"
        BoardName   "Radeon RV100 QY [Radeon 7000/VE]"
        BusID       "PCI:0:20:0"
    Screen 0
EndSection

Section "Device"
        Option "NoAccel" "true"
        Identifier  "Card1"
        Driver      "ati"
        VendorName  "ATI Technologies Inc"
        BoardName   "Radeon RV100 QY [Radeon 7000/VE]"
        BusID       "PCI:0:20:0"
    Screen 1
EndSection

Section "Screen"
        Identifier      "Screen0"
        Device          "Card0"
        Monitor         "Monitor0"
        DefaultDepth    16
        SubSection "Display"
            Depth       16
            Modes       "1024x768"
        EndSubSection
EndSection

Section "Screen"
        Identifier      "Screen1"
        Device          "Card1"
        Monitor         "Monitor1"
        DefaultDepth    16
        SubSection "Display"
            Depth       16
            Modes       "1024x768"
        EndSubSection
EndSection

Section "ServerFlags"
        Option "AllowMouseOpenFail" "true"
        Option "DontVTSwitch"   "true"
        Option "DontZap"        "true"
        Option "DontZoom"       "true"
        Option "BlankTime"      "0"
        Option "StandbyTime"    "0"
        Option "SuspendTime"    "0"
        Option "OffTime"        "0"
EndSection


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xorg ati ES1000 with DRI 
Thursday, December 27, 2007, 12:15 - System
Posted by Administrator
xorg ati/radeon video driver for ES1000 has DRI disabled :-(

As a workaraound i changed ChipID in xorg.conf to "0x515a"

suggested by http://ubuntuforums.org/showpost.php?p= ... stcount=15
Section "Device"
  Identifier "ATI Technologies Inc ES1000"
  Driver "ati"
  ChipID 0x515a
EndSection


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date with unix timestamp 
Wednesday, December 5, 2007, 10:39 - Programming
Posted by Administrator
date in unix timestamp: date +%s

convert unix timestamp to date: date --date "Jan 1, 1970 00:00:00 +0000 + $1 seconds"

set date with unix timestamp: date -s "Jan 1, 1970 00:00:00 +0000 + $1 seconds"


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