kwin (4.11.12) idle CPU usage

Duncan 1i5t5.duncan at
Wed Jan 27 06:54:11 GMT 2016

René J.V. Bertin posted on Tue, 26 Jan 2016 15:33:12 -0800 as excerpted:

> On Tuesday January 26 2016 23:07:27 Kevin Krammer wrote:
>>If you have compositing activated then the compositor will have to
>>create a new frame when window contents change.
> Is there a possibility to turn off compositing for Chrome windows? I
> only see something labelled "block compositing" but it's not clear
> whether that "block" is the verb or the noun there.

It's verb.

But the option applies to the entire desktop, turning compositing off for 
all windows when the window with the block transparency option activated 
is displayed, or even if it's not displayed as it's on a different 
desktop or below some other window.

Thus it's not an option I'd consider viable, as I'm multi-monitor here, 
so even full-screen windows (which were the original compositing blocker, 
for games and the like) are "full screen" only to a single monitor, not 
the entire desktop, and I actually use things like transparency to allow 
me to type into one window while using the content of another window, one 
viewed _thru_ the other, as a reference, and I never want compositing off 
for the entire desktop, here.

But it might work better for you, if you have less need of compositing 
effects like transparency and don't have a multi-monitor desktop so full-
screen really is the entire desktop, and thus aren't bothered as much by 
blocking compositing for the entire desktop.

Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

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