[Webkit-unassigned] [Bug 215045] Webkit / WebKitGTK is slow as hell when scrolling Divi websites

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Dec 22 07:40:32 PST 2020


https://bugs.webkit.org/show_bug.cgi?id=215045

--- Comment #2 from Jeff Fortin <nekohayo at gmail.com> ---
This happens even if you run it as:
LIBGL_DRI3_DISABLE=1 epiphany

It also happens on all of my machines regardless of the GPU drivers: one is Intel Sandybridge, the other is running the open source radeon drivers. However, on the radeon machine, I see epiphany trying to do things it doesn't like either:

Error loading module '/usr/lib/mozilla/plugins/nppdf.so': /usr/lib/mozilla/plugins/nppdf.so: wrong ELF class: ELFCLASS32
Failed to launch /usr/libexec/webkit2gtk-4.0/WebKitPluginProcess: Failed to execute child process “/usr/libexec/webkit2gtk-4.0/WebKitPluginProcess” (No such file or directory)
radeon: The kernel rejected CS, see dmesg for more information (-22).
(repeated hundreds of times)

dmesg:

[143990.046554] [drm:radeon_cs_ioctl [radeon]] *ERROR* Invalid command stream !
[143990.046670] [drm:radeon_uvd_cs_parse [radeon]] *ERROR* UVD handle collision detected!
(repeated hundreds of times)

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