I've tested the above hypothesis by removing 37_Fix- __glXDRIbindTexImage-for-32-bpp-on-big-endian-platforms.diff from debian/patches/series, and I've concluded that xorg-server is /not/ responsible for the above breakage, because the symptoms are identical.
** Changed in: xorg-server (Ubuntu) Importance: Undecided => Low Status: Unconfirmed => Needs Info ** Summary changed: - xserver-xorg-core_1.1.1-0ubuntu12_i386 brakes compiz (white screen) + xserver-xorg-core_1.1.1-0ubuntu13_i386 breaks compiz/beryl (white screen) -- xserver-xorg-core_1.1.1-0ubuntu13_i386 breaks compiz/beryl (white screen) https://launchpad.net/bugs/79196 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs