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[Bug 1294311] Re: Compiz process continuously uses too much cpu.


I have recently installed Ubuntu 14.04 LTS. It worked wonderfully at
first, but then it started to be extremely slow to open and close new
windows. The system monitor showed that the processor ran at around 100%
although I was nothing special. The "Compiz" process took up around 40%
of the processor power.

The problem started a while after I had connected an external monitor.
First it worked wonderfully, but after a while the problems started.
Maybe there is some problem with compiz that arises when one uses an
external monitor. Maybe compiz has a but that is triggered when the
graphics-processor sending data to an external monitor.

The problem did not disappear immediately when I deselected the external
monitor. I restarted but it was still there, but when I started the
computer today it worked OK. I do not dare to connect the external
monitor again because I do not want to be stuck with the same problem
again. I have a Dell U2311H with 1920 × 1080 pixels, while the laptop
has 1280 × 800 pixels.

Computer: Acer TravelMate5520
Processor: AMD Turion 64 X2 Mobile Technology TL-60 × 2
Graphics: Gallium 0.4 on ATI RS690
OS: 64-bit

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  Compiz process continuously uses too much cpu.

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