Comment 15 for bug 26411

Flight 5 doesn't have those IDs in. Please can you try:

  $ sudo dpkg-reconfigure -phigh xserver-xorg

and if that doesn't work, can you paste the output of:

  $ sudo discover --disable-all --enable=pci --format="%V %M\t%S\t%D\n" video

and:

  $ lspci -n | grep 0000:00:0

which should also show the bridge address. And can we have a quick which package versions you've got installed:

  $ dpkg -l | awk '/^ii.*(libgl1|linux-image|driver-i810|xserver-xorg )/{print $2,$3}'

Many Thanks!