Oracle VM VirtualBox: Oracle VM VT-x/AMD-V hardware acceleration is not available on your system

I have Dell XPS 13 9350 laptop and I needed to install few virtual machine to it using Oracle VirtualBox software but when I tried to install example Windows 10 or Kali Linux I alwas got error message which said:

“VT-x/AMD-V hardware acceleration has been enabled, but is not operational. Your 64-bit guest will fail […]

Linux: Adjust LCD laptop backlight brightness from command line

I needed to find out how can I change my laptop backlight brighness using just a command line. Solution for that problem was easier than I thought because you can do that just with one line =)

On my laptop which is Dell Latitude D430 brigness file was on /sys/class/backlight/dell_backlight directory but it’s probably almost […]

Dell PowerEdge 2650 server and memory limited message

I was installing Debian GNU/Linux to one of my old Dell PowerEdge 2650 servers but everytime when I booted it up I got annoying message on my screen:

"Amount of available memory limit to 256 MB! Strike the F1 key to continue, F2 to run the setup utility"

I find out that you can get […]

Kali Linux: How to keep your laptop running when you close the lid

I wanted to run some software on my laptop but I wanted to close the lid of my laptop so it would be easier to carry with me but every time when I closed the lid my laptop went to sleep and stopped everything what it was doing =( I didn’t find any settings from […]