I guess the reason is that the radeon driver allows you to just have one DRI capable head, the others will use software rendering.
** Summary changed: - guest session is slow + second X session is slow ** Package changed: gdm-guest-session (Ubuntu) => xserver-xorg-video-ati (Ubuntu) -- second X session is slow https://bugs.launchpad.net/bugs/359092 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs