Raphaël, check out the solution I have described in https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1462614/comments/37
Maybe it will work for you too.
Raphaël, check out the solution I have described in https:/ /bugs.launchpad .net/ubuntu/ +source/ linux-lts- utopic/ +bug/1462614/ comments/ 37
Maybe it will work for you too.