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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #25 from Chris Wilson <chris at chris-wilson.co.uk> ---
Do you have VT'd (iommu) enabled? Otherwise I expect it had to move the fb into
the mappable portion.

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