SOLVED Possible Kernel problems with ubuntu 18.04 and latest kernel

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Now to why I think it's a kernel problem.

Yes, that's it, it's really only a kernel problem. I noticed that when I tested some different Linux releases, e. g. Xubuntu 18.04 and Mint XFCE 18.04 - they had the same bugs when adding start-up icons to the system panel - the user has to do it several times in order the right panel icon is set. Is it just a coincidence in different distros? No, I don't think so, it's just the same 'infection' in the common kernel they use.

After install I fully updated 16.04. I then decided to use the do-release-upgrade command to download and upgrade the system which seemed to work great, except with the 4.15 default kernel the same behaviour happened. System seemed to hang at the final stage of ....Starting Reboot/Starting Shutdown.

The user may block updating some apps in Synaptic and so they will never be updated. Is it possible to do the same for the new buggy kernels, I wonder? It would be great! As I don't want new kernels at all - the older kernel versions are even better and faster for my old netbook.

But doing it this way the old 4.5.4 kernel was still available, so I changed to this kernel and everything seemed to work properly, rebooting and shutting down as it should.

How I understand you!

I am comfortable using the terminal so if anyone needs more info just tell me the commands and info you want.

I want the commands! Please!