Related bugs (Lenovo's using the same/similar Intel chipsets):
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1159317 https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1158108
Please let me know if there's any other information I can provide.
Related bugs (Lenovo's using the same/similar Intel chipsets):
https:/ /bugs.launchpad .net/ubuntu/ +source/ xorg/+bug/ 1159317 /bugs.launchpad .net/ubuntu/ +source/ xorg/+bug/ 1158108
https:/
Please let me know if there's any other information I can provide.