*** This bug is a duplicate of bug 1628478 ***
https://bugs.launchpad.net/bugs/1628478
Graphics Controller: NVIDIA® GeForce® GTX 960M (4GB) GDDR5 (Maxwell) w/
Optimus™ Technology
Processor: 6th Generation Intel® Mobile Core i7-6700HQ Skylake Processor
Chipset: Intel® Mobile HM170 Express
*** This bug is a duplicate of bug 1628478 ***
https://bugs.launchpad.net/bugs/1628478
Thanks for logging a fresh bug.
Now we can see your system details it appears this is a duplicate of bug
1575516 (or possibly bug 1628478).
Can you tell us what model Nvidia card/chip you are using?
**
