[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kde-bugs-dist
Subject:    [kwin] [Bug 322060] Synced swapping on double buffered nvidia GPUs cause high CPU load
From:       Thomas Lübking <bugzilla_noreply () kde ! org>
Date:       2018-02-01 17:11:27
Message-ID: bug-322060-17878-05aCI0qKoD () http ! bugs ! kde ! org/
[Download RAW message or body]

https://bugs.kde.org/show_bug.cgi?id=322060

--- Comment #141 from Thomas Lübking <thomas.luebking@gmail.com> ---
As pointed out in the original report, this has *never* been about vsync
functionality per se.

The other yield methods (at that time, I dropped KDE for other reasons) caused
ridiculous CPU load (when glSwapBuffers block, ie. w/ double buffered vsync).
So the code just checks for the environment to be set and disables vsync if
it's not and the triple buffering is guessed (there is/was no way to query it)
off.

Tuhs it would be good if one could ensure kwin to be loaded w/ this setting,
but setting the environment in the process is too late.

-- 
You are receiving this mail because:
You are watching all bug changes.=
[prev in list] [next in list] [prev in thread] [next in thread]