This doesn't sound like an XCB-related bug, especially since Ubuntu currently isn't using XCB, so I've marked it no longer a duplicate of #88815.
** This bug is no longer a duplicate of bug 88815 Sluggish rendering since xorg 7.2 update -- Xorg uses 100% CPU https://bugs.launchpad.net/bugs/87351 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
