[KDE] how to disable Vaults

Only way is to uncheck it in "Configure system tray settings", by pressing right mouse button on notification arrow near to clock on panel. AFAIK it cannot be disabled by activities settings.

Works on Plasma 5.16 and later.

[Krita] make photoshop compatible shortcuts

If you want adobe photoshop compatible hotkeys, go to Settings > Configure Krita > Keyboard Shortcuts tab > Shortcut schemes and select there "photoshop_compatible". Real KDE way.

[KDE] numpad digits not working how to fix

Find in launcher for "Keyboard" control window, in tab "advanced" in "moscellaneous compatibity options" group set ticks for "default numeric keypad keys" and "Num Lock on: digits; Shift for arrow keys. Num Lock off: arrow keys (as in Windows)".

If it doesn't work, find "Mouse" control window, in tab "keyboard navigation" remove checkbox for "move pointer with keyboard".

KDE plasma version 5.12.6, Kubuntu 18.04

KDE cannot move cursor to another display fix

In System settings > Display and Monitor (or find in launcher "Displays") in displays preview make that two displays will be snapped together, instead of just were near to each other. Press "apply" and apply the changes.

[Linux] another way to fix Jetbrains Russian layout hotkeys

If you cannot use Jetbrains phpstorm/idea hotkeys with Russian layout on Ubuntu, try to install KDE instead of GNOME, because this issue doesn't appears in Kubuntu.

Fedora - how to increase browser scroll speed

To increase mouse wheel speed, just install rpm binary package from https://fedora.pkgs.org/28/russian-fedora-free-i386/imwheel-1.0.0-0.1.pre12.fc28.i686.rpm.html . After installing, you will feel that scroll speed increased. Do not forget add it to autostart

Turn off compositing in Kwin

Simply press Alt+Shift+F12 and you will win.

Cannot add icons in KDE

Simply add extracted icons into /usr/share/icons and restart KDE Icons Settings window.

Do not show window title in Opera and KDE

When you want to quickly switch between Opera tabs, you need to remove common window borders.

1. go to the System Settings > Window Management > tab Window rules, press New... 
2. press on Detect Window Properties and click and drag on Opera window
3. in new window press Ok
4. in tab Appearance & Fixes add tick on No titlebar and frame, in dropdown list select Apply initially, and select Yes
5. in previous tab enter own name of rule
6. Don't forget to press Ok and in Window Rules press Apply on bottom