[Bug 77436] KDE Konsole very slow scrolling with TearFree and QT graphics system native

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Jun 13 06:04:46 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=77436

--- Comment #82 from Chris Wilson <chris at chris-wilson.co.uk> ---
Actually, it is not quite as cut and dried as I earlier thought. If we force
the fallback there, we move the entire pixmap to the CPU which encourages the
next set of operations to be done on the CPU as well. So rather than just the
copy operation being suspect, we prevent loading the GPU at all. Sigh.

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