Public bug reported:
Hello,
On Ubuntu 14.04.5 LTS up to date (28/06/2018, DD/MM/YYYY), after connecting or
removing a monitor (moving, etc...) with a Nvidia GPU, unity-control-center
takes high CPU and makes Xorg taking 100% of the CPU.
This produces lags, framerate drop, etc... even with office apps (Firefox,
LibreOffice, etc...).
It makes Steam and Discord very slow to start, and very laggy.
And Steam games run with 10 - 15fps were they run with 60fps or more without
this bug.
Typing:
```killall -9 unity-control-center```
fix immediately the problem, but it's not good for users who don't know
the reason and think it's due to a bad performance from Ubuntu....
Note: I use Ubuntu 14.04.5 LTS from about 4 years now, and I experience this
bug only since 3 - 6months, on 5 different computers who are all up to date.
(Kernel 4.4+, and all others updates)
Thank you !
PS: I don't know if it affects only computers with nvidia GPUs, but in
my case I have the problem on all my computers...and they have all
nvidia GPUs. Models used: GTX 770, GTX 1050, laptop and desktop, with
and without hybrid graphics (intel).
** Affects: unity-control-center (Ubuntu)
Importance: Undecided
Status: New
** Tags: issue performance
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https://bugs.launchpad.net/bugs/1779111
Title:
High CPU usage, framerate drop after adding or removing monitors
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