I have this issue on my Dell XPS 14 too. I have tried all combinations of driver options and none seem to work. This is a related bug. I am not sure if it's a exact duplicate. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1226728
I have this issue on my Dell XPS 14 too. I have tried all combinations of driver options and none seem to work. /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1226728
This is a related bug. I am not sure if it's a exact duplicate.
https:/