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I have used the same hardware setup with Ubuntu 14 and didn't have any problems with the nvidia driver (not sure which one I used back then).

Seems to work fine in "only external monitor" "only built-in display" or "screen mirroring" mode. But when it comes to extending desktop on multiple displays, windows look extremely stretched horizontally and click offset if off by a lot.

Tried the following: - X.org driver is O.K but slow and flickers on the external monitor - Cycling through display modes with no avail - Couldn't find any BIOS setting for nvidia optimus to try turning it off

Any help would be greatly appreciated!

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I've had the same problem for months and even downgraded to 14.04.2 to see if that would help with Nvidia 331-updates. After a bit of research I found a bug on launchpad and the [fix] (https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1382462/comments/35) suggested here sorted it for me at last (Asus N56VM with Nvidia 630M/Intel). Phew!

[Install] CompizConfig Settings Manager, go to "General Options", then "Display Settings" and do the following:

  • Uncheck "Detect Outputs"
  • In the Outputs array, set the resolutions of each of your screens. The numbers after the resolution "1920x1080+0+0" are the offset. It's important to add this offset according to your needs. I have two full HD screens, so I added the following configuration: 1920x1080+0+0 1920x1080+1920+0

The second output has an offset of 1920, because it is on the right side of the first output, which has a width of 1920.

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