Adding to my comment. My upgrade has been a mini-disaster. First, the
upgrade from 14.04 repeatedly failed. So, I just did a fresh install.
This was not too bad, because I had previously formatted my drive to
keep home directories separate. I also had an external backup.
Finally, I also used aptik to help install software. That worked
partially, and mitigated the pain, somewhat.
However, now audio works only sporadically, and requires that I do an
"alsa force-reload" on a regular basis to get it to work. I often have
to go to system settings to reset everything. Sometimes that reset
isn't saved, and it still does not work. Given that the problem is
sporadic, I am hesitant to ask for help, because that would require lots
of homework on my end, which I don't really have the time for right now.
Possibly related to this is that squeezesoft sometimes starts eating up
tons of resources, and I have to restart the service.
I also have your problem of plasma eating up lots of CPU and everything
is often slow. Sometimes the whole screen just freezes for about 20
seconds, and I have to wait for even typing to catch up. I have tried
some of the solutions on the web, but that hasn't worked. I built this
particular desktop to be friendly with linux. Since this is a fresh
install, the problems out of the starting box are particularly
I hate microsoft windows, and don't want to enter the closed ecosystem
of apple. But, linux requires this constant sort of maintenance, that I
often need to avoid. Fortunately, this desktop is my sort of test case
for such upgrades, and it did not really pass. I have already spent way
too much time trying to get things working. I will avoid updating my
other machines to 16.04, and only update when the support on 14.04 runs
out. Not sure what I will do then, but certainly try to find some
version that focuses more on stability. Maybe Mint?
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plasmashell high CPU usage (100%+)
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