Sometimes I have trouble shutting down the computer. Yes I can initiate the shutdown commands without any issue at all BUT when the computer begins the shutdown procedure where you can see the Kubuntu logo, the keyboard lights and the monitor will turn off but the system unit will not as I can tell by it’s fan still spinning. All I can do is press the power button for 5 seconds or hit the resset button and boot Windows 7 to shut it down.
I occasionally encounter this issue whenever I’m using Linux regardless of the distro.
Open Dolphin, enter to this folder where you download the packages, open the terminal in this location (Shift+F4 for Konsole or F4 directly in Dolphin) and install the kernel with this command:
sudo dpkg -i *.deb
You wait for the process to finish completely. Reboot the system and login whit the new Kernel from GRUB (“uname -r” to check you are in this Kernel when log in).
PS: Where you can see the Kubuntu logo, you can press the Esc key to see if there is any useful message.
This kind of problems can be related to many causes. It may be a problem with the system/kernel/driver/acpi/GRUB, or can be related only to Unity in Ubuntu or KDE on Kubuntu.
This is why is better to ask these questions in a specific forum of the distribution.
In any case, if you follow some of these guides I recommend do first a backup of the file before editing it manually, and if you see “sudo gedit”, you use “kdesudo kate” (not “sudo” to open graphical interfaces on Kubuntu)