My apolagies Danum, I do recall seeing that it was based on Wheezy and that you had actually built it starting with Wheezy and you mepisified it. I guess I got my wires crossed due to it being a 32-bit package.
Back to Michelmassoud.
Let's make sure your hardware is not the problem first.
Boot with the Live-CD, choose the option to test and explore hardware, then using your arrow keys to navigate the menu, down arrow to Memory, right arrow to sub-menu and down arrow to run test. (left arrow or Esc to go back a step) If the RAM passes, then grab yourself a copy of Gparted Live-CD and boot with that, then click the disk health icon and follow you way through to your hard disk and double click it. Take note of the tab text colours, anything but black shows a failure detected. Open the Attributes tab and if there is any item highlighted, then your hard disk has reported a SMART error. Hover your mouse over each line to get a description of what each field means. If there are no errors, then run a quick test, or go the whole hog and run the full test, the choice is yours.
The L650 runs quite hot, so with the laptop off, clean the exhaust area with a damp cloth, (don't avoid this step or you'll regret it) raise the laptop up to your mouth, take a deep breath, cover half of the exhaust with your lips and give a hard and sharp blast of air into the cooling fins so you're driving the air in the reverse direction to what it is designed to do, then repeat again covering the other half. Watch for dust exiting the intake grill and make sure it doesn't get into your eyes or nose. This is a quick and dirty way of de-dusting a laptops cooling system and it is by no means what the pros do, but it will get you some results.
When finished, grab some pin tweezers and pick out any fluff that gets caught in the grille. If there's lots, i.e you've been weaving carpet over the exhaust fins, then you'll have to open it up and de-dust it properly or take it to the pros.
You can do it with very short blasts from a vaccuum if you want to, but pin the CPU fan with a paperclip to stop it spinning, else it will turn into a generator and could fry some internal components. By blowing it yourself twice as described, you will not do it any harm if the fan spins.
The Gparted Live-CD has a plethora of tools included and it is by far my most favored toolkit for almost all systems. You can check and benchmark hardware, scan for viruses (never used it for that), scan disks for errors and fix most common errors, use it for data recovery and more. The easiest way to scan a disk for soft errors is to do it through gparted, which is on the Gparted Live CD Desktop. Do that and come back to us.
If there are no hardware faults and your partitions are in good health, then you have a software error. PM me or send me an email if you need some hands-on assistance with the software side of things.
Regd Linux User #472293
(Mine)Lenovo T550, i7-5600U, 16GB, 128GB SSD + 1.0TB HDD, MX15 64-bit
(Wifes) Asus M4A88TD-M, AMD Phenom II x4 955 CPU, nVidia GF610, 6Gb, 500GB+320GB, MX14 + KDE
(Kids) Intel NUC, J1900, 4GB, 64GB SSD, MX14 + KDE