To add a "shred files" command to the nemo context memory:

1. Create directory ~/.local/share/nemo/actions
2. In the new .../actions directory, save the following in a plain text file called "shred.nemo_action":
   CODE: SELECT ALL

   [Nemo Action]
   Active=true
   Name=Shred selected
   Comment=Overwrite and delete object
   Exec=/usr/bin/shred -f -u -v -z -n 2 %F
   Selection=any
   Extensions=any
   EscapeSpaces=true

Otestovanie podpory videi: https://www.youtube.com/html5?hl=sk

Naposledy pre Opera: ln -sf /usr/lib/chromium-browser/libffmpeg.so /usr/lib/x86_64-linux-gnu/opera/libffmpeg.so (run in opera install dir).
Naposledy mi slo pre Opera 55:

1. nainstalovat chromium
2. sudo rm /usr/lib/x86_64-linux-gnu/opera/lib_extra/libffmpeg.so
3. sudo rm /usr/lib/x86_64-linux-gnu/opera/libffmpeg.so
4. sudo ln -s /usr/lib/chromium-browser/libs/libffmpeg.so /usr/lib/x86_64-linux-gnu/opera/lib_extra/libffmpeg.so
5. sudo ln -s /usr/lib/chromium-browser/libs/libffmpeg.so /usr/lib/x86_64-linux-gnu/opera/libffmpeg.so

Čítať ďalej: H.264/MP4 problem in Opera 49.0.2725.5

Although partitions created when installing a Linux distribution are automatically mounted on boot, the ones created before the installation need to be mounted manually (unless you manually create a mount point on installation). This can be changed, however, so here is how to mount these partitions automatically.

Na upravu neprijemneho blikania monitora

display flickering problem solved :)

So my solution is, which seems to work well on my system:

1. I opened up Startup Applications

2. I clicked Add

3. I typed a name and the following in the command field:

   xrandr -s 1280x1024 -r 75

Using this xrandr -s 1280x1024 -r 75 is run at every sytem startup and sets the refresh rate as required. There could be a better option but right now this seems to be OK for me.

Hopefully the LTS will fix the showstopper bug of no easy, gui way to change the refresh rate.

or in terminal simply>>>>>> xrandr -s 1280x1024 -r 75