[SOLVED] - Major Maui Meltdown.

[kdemeoz]

It's seems possible to be a hardware problem !
If you have installed the OS in a SSD (I remember you have SSDs), try this command in the konsole : sudo fstrim -v /  .
I have also the OS in a SSD and I used to run this command once or twice a week. (Normally, the system runs fstrim on a weekly basis but I like doing it myself, just to be sure.....!
And something else.... I hope your PSW (power supply unit) is "strong" enough to support your specific hardware demands ! If you have 2-3 disks , demanding graphics card and other PCI expansion cards , USB devices (powered by the PC) ...etc..etc... you need a decent 650W PSW .
Keep your eye to the PSW !!! It can cause crazy situations......
I hope you fix the problem.

Thanks. Yes it is an SSD where Maui [& /home] are. I did now manually run fstrim as you suggested [but it should be unnecessary, due to my rc.local excerpt as shown further below], with these results:

Code:

Z97-HD3:~$ sudo fstrim -v /
[sudo] password for ...:  
/: 18.5 GiB (19824160768 bytes) trimmed
Z97-HD3:~$ sudo fstrim -v /home
/home: 102.7 GiB (110245642240 bytes) trimmed
Z97-HD3:~$ sudo fstrim -v /opt
/opt: 27.8 GiB (29857165312 bytes) trimmed

I then tried another reboot, but it was still not fixed.

Bottom of my rc.local file, ie, trimming should occur during every boot (i always edit my Linux OS this way when i have SSD, this is not a new/recent edit]:

Code:

fstrim /
fstrim /home
fstrim /opt

exit 0

My power-supply is  a Silverstone 700W 80plus Gold PSU.

Thank you for trying to help me!