[Bug 85064] Intel DRI3 causes extremely slow scrolling on certain pages with WebKitGTK+

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85064

Michael Catanzaro <mcatanzaro at gnome.org> changed:

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                 CC|                            |mcatanzaro at gnome.org

--- Comment #13 from Michael Catanzaro <mcatanzaro at gnome.org> ---
(In reply to Michel Dänzer from comment #12)
> Does this still happen with current versions of the graphics stack, in
> particular libxcb 1.11.1 or newer?

An Arch user complained to me about this bug just last month, and the
LIBGL_DRI3_DISABLE=1 trick "fixed" the issue for him. I see libxcb 1.11.1 has
been in Arch since September, so it seems extremely likely that he was using it
at the time.

The issue is 100% reproducible on any DuckDuckGo search results page (e.g. [1])
when DRI3 is enabled on a wide variety of hardware. However, my distro of
choice, Fedora, has disabled DRI3, and therefore I am personally no longer able
to easily reproduce.

[1] https://duckduckgo.com/?q=freedesktop&t=epiphany&ia=about

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