Knowledge base

If you are used to left-side Close, Minimize, Maximize buttons, then can be moved by editing dconf.

• If you are using Metacity (Gnome3 fallback), settings are located in:
  org.gnome.desktop.wm.preferences.button-layout
• If you are using Gnome3, settings are located in
  org.gnome.shell.overrides

Contents of the given key must be:
close,minimize,maximize:

Ubuntu message “warning: setlocale: LC_CTYPE: cannot change locale (UTF-8)” can be cured by adding to file /etc/default/locale the following line:

LC_ALL=”en_GB.UTF-8″

For immediate effect command must be entered:

export LC_ALL=”en_GB.UTF-8″

My Linux printer was scaling down 4x times each printout, except ones from “document viewer”. Turned out that default option “Pages per sheet” in CUPS was reset to 4.

In order to set default value of “Pages per sheet” in CUPS to 1:
1)Stop cups: /etc/init.d/cups stop
2)edit file /etc/cups/printers.conf and set
Option number-up 1
3)Start cups: /etc/init.d/cups start

Edit file /usr/share/applications/AdobeReader.desktop
Change line: Exec=acroread to Exec=acroread %U
Run: sudo update-desktop-database

Using gconf-editor it is necessary to modify
/desktop/gnome/sound/default_mixer_device

to value:
alsamixer:default

Full info here

1)Set global limits in file /etc/php5/apache2/php.ini:

upload_max_filesize = 32M
post_max_size = 32M

2)Set local limits in /usr/share/roundcube/.htaccess

php_value upload_max_filesize 16M
php_value post_max_size 17M
php_value memory_limit 256M


P.S. Perhaps you will need to adjust your Postfix SMTP server message size limit in /etc/postfix/main.cf

message_size_limit = 33554432


Seems that program mail-notification lacks some gnome icons. For theme “clearlooks” they can be created using script:

cd /usr/share/icons/gnome
for f in 8 16 22 24 256 32 48
do cp $f'x'$f/status/stock_mail.png $f'x'$f/status/stock_unknown.png
done
update-icon-caches ./