Preferences -> Screensaver lets you set the screensaver preferences. If you really want to stop the screensaver then you can kill the daemon ("File" menu).
Is there a special way (like some menu I had to see for it) to disable the Screensaver?
I don't know how I did it, but I choosed one earlier by some button in the menu I think and switched to one minute and it's annoying a little to watch random animations.
Can I switch it off or select one I like a much and turn-off the shuffle (screensaver randomization)?
Preferences -> Screensaver lets you set the screensaver preferences. If you really want to stop the screensaver then you can kill the daemon ("File" menu).
In Knoppix V6.2.0 (CD) I was able to set the screensaver preferences by using the menu entry XScreenSaver Setup in the System Tools menu. In Knoppix V6.2.1 (CD) I used the menu entry Screensaver in the Preferences menu. There is also the possibility to run the command xscreensaver-demo in the terminal.
ASUS - PRIME B450M-A II (Socket AM4) AMD B450 microATX DDR4 Motherboard - Black
$69.99
GIGABYTE Motherboard GA-H81M-HD3 | No CPU
$25.00
GIGABYTE GA-AB350M-D3H Motherboard Socket AM4 DDR4 +AMD Ryzen 3 2200G I/O Shield
$79.99
ASUS Prime Z270-A Motherboard LGA 1151 Socket H4 Intel Z270 ATX HDMI DDR4
$69.97
Gigabyte B560 DS3H AC Intel LGA 1200 DDR4 ATX Motherboard
$69.95
ASUS ROG STRIX X299-E DDR4 ATX Gaming Desktop Motherboard
$89.99
Asus H110M-C MicroATX Motherboard Intel LGA1151 i3-6100 CPU I/O Shield+ Fan
$39.95
AAEON IMBM-Q170A MicroATX Motherboard Socket LGA 1151 W/IO
$24.99
Gigabyte M-ATX motherboard with Intel Core i3 8100 CPU and 8GB DDR4 RAM
$79.00
TYAN Server Motherboard S5537 S5537G2NR
$15.99