[Webkit-unassigned] [Bug 168128] [GTK] Version 2.14.4 does not paint most websites

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=168128

--- Comment #4 from Adrian Perez <aperez at igalia.com> ---
The most obvious difference is that in my old laptop I got DRI3 disabled
at some point (using “Option "DRI" "2"” in a xorg.conf.d snippet). Disabling
DRI3 with the environment variable did not solve the issue:

  % LIBGL_DRI3_DISABLE=1 Tools/Scripts/run-minibrowser --gtk --debug  # Still blanks

Editing “/etc/X11/xorg.conf.d/99-intel.conf” and adding the option there
to disable DRI3, and launching a new X session makes WebKitGTK+ paint
webviews correctly without having to set any environment variable. For
reference, these are the contents of that file in my system:

  % cat /etc/X11/xorg.conf.d/99-intel.conf 
  Section "Device"
      Identifier "Intel Graphics"
      Driver     "intel"
      Option     "DRI" "2"   # Added for testing.
      Option     "Backlight" "intel_backlight"
  EndSection

With the configuration snippet above, non-AC mode works.

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