modifier keys (among which windows key) unusable after focusing vmware

reason: caps lock appears in two places: lock and  control in xmodmap

lock        Caps_Lock (0x42)
control     Control_L (0x25),  Caps_Lock (0x42),  Control_R (0x69)

xmodmap becomes empty after giving focus to vmware if a key is doubled

solution:
setxkbmap
xmodmap -e "clear lock"

source:
https://askubuntu.com/questions/493404/ubuntu-14-04-vmware-6-left-ctrl-and-right-shift-not-functioning

keyboard (language) icon missing

Keyboard icons missing in gnome-flashback


create a new theme

mkdir -p ~/.icons/addflags/status/22

create file ~/.icons/addflags/index.theme with the following content

[Icon Theme]
Name=addflags
Comment=Smooth modern theme designed to be intuitive.
Inherits=moblin

Example=directory-x-normal

#Directory list
Directories= status/22

[status/22]
Size=22
Context=Status
Type=Fixed

where Inherits is the theme you want to use

set the theme (e.g. by gnome-tweak-tool)  to addflags


status/22 contains the icons indicator-keyboard-*.svg
taken from example from
  usr/share/icons/ubuntu-mono-dark/status/22/
(sudo apt-get install ubuntu-mono)

super p stolen from xmonad

If <Super>P is associated with xrandr (stealing the keybinding from xmonad):

dconf-editor

disable

org/ gnome / settings-daemon / plugins / media-keys / active

source:
http://askubuntu.com/questions/68463/how-to-disable-global-super-p-shortcut

gnome panel crashing with transparent background

Fix libcairo

--Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=91967
Signed-off-by: Uli Schlachter <psychon@znc.in>
----
 src/cairo-xlib-surface.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/cairo-xlib-surface.c b/src/cairo-xlib-surface.c
index 3f407c3..555c1fe 100644
--- a/src/cairo-xlib-surface.c
+++ b/src/cairo-xlib-surface.c
@@ -807,6 +807,7 @@ _get_image_surface (cairo_xlib_surface_t    *surface,
         }

         cairo_surface_destroy (&image->base);
+        image = NULL;
     }
     }

@@ -1011,7 +1012,8 @@ _get_image_surface (cairo_xlib_surface_t    *surface,
     cairo_device_release (&display->base);

     if (unlikely (status)) {
-    cairo_surface_destroy (&image->base);
+    if (image)
+        cairo_surface_destroy (&image->base);
     return _cairo_surface_create_in_error (status);
     }

--


source:
https://bugs.freedesktop.org/show_bug.cgi?id=91967

resize window from command line

use the following script:
source:
http://blog.yjl.im/2012/05/window-resizing-one-liner-using.html

#!/bin/bash
# Using xwininfo and wmctrl to resize a window
# Written by Yu-Jie Lin
# Public Domain

WIN_ID=$(xwininfo | egrep -om 1 '0x[0-9a-z]+')
W=$1
H=$2
X=${3:--1}
Y=${4:--1}

wmctrl -i -r $WIN_ID -e 0,$X,$Y,$W,$H

three fingers for copying

synclient TapButton3=2

Ubuntu XPS 8700

Nvidia Geforce GT 720 installed on Ubuntu 14.04 using

 $ sudo add-apt-repository ppa:xorg-edgers/ppa
$ sudo apt-get update
$ sudo apt-get install nvidia-340

source:  http://linuxg.net/how-to-install-the-nvidia-340-24-driver-on-ubuntu-14-04-ubuntu-13-10-ubuntu-12-04-and-derivative-systems/

reconfiguring mouse buttons

to remap the buttons

 xinput set-button-map $id  1 2 3 4 5 6 7 8 9 2 11 12 13

where $id can be found by 

xinput list

To enable the 3 mouse button

in /etc/X11/xorg.conf

Section "InputClass" 

        Identifier  "yes 3 button emulation"

        MatchIsPointer "on"

        MatchDevicePath "/dev/input/event*"

        Driver "evdev"

        Option  "Emulate3Buttons" "true"

EndSection

(and not in "InputDevice" )

On 12.04,

edit
/usr/share/X11/xorg.conf.d/10-evdev.conf

by assing the Option to this section


Section "InputClass"
        Identifier "evdev touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "evdev"
        Option "Emulate3Buttons" "True"
EndSection

allow connection to the x-server gdm

if even xhost+ does not work,

 in /etc/gdm/gdm.schemas set

 <schema>
      <key>security/DisallowTCP</key>
      <signature>b</signature>
      <default>false</default>
    </schema>

Ubuntu nvidia driver

Working configuration (that do not make programs crash at startup)

kernel 3.0.0-14-generic

nvidia-drivers 275.43

(285.05.09 or 290.10 do not work)

set emacs keybindings in gtk

in ~/.gtkrc-2.0 add

 gtk-key-theme-name = "Emacs"'

run

 gconftool -t string --set /desktop/gnome/interface/gtk_key_theme Emacs

ibus anthy icon

http://code.google.com/p/ibus/issues/detail?id=1114#c1

set gtk theme without gnome

 set the gtk theme by 

   lxappearance for gtk 2

   ln -s /usr/share/themes/flastiq/gtk-3.0/ ~/.config/

fix gnome settings daemon error

error: Could not apply the stored configuration for the monitor
solution: rm ~/.config/monitors.xml