UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.146 Safari/537.36

Steps to reproduce the problem:
1. Navigate to any website
2. Open devtools and enable device emulation
3. Select a device with a DPR != 1.0

What is the expected behavior?
The page is displayed correctly

What went wrong?
The page is clipped to 1 / DPR^2 of the screen. So if DPR is 2.0 then the page is clipped to only display the top left 1/4 of the page.

If I switch to responsive mode and then select a different DPR the problem goes away. Resizing the page causes the problem to return. See attached video.

Did this work before? Yes 64

Chrome version: 65.0.3325.146  Channel: stable
OS Version: OS X 10.13.3
Flash Version: 

* This problem doesn't seem to be specific to any particular website.
* The problem seems to only occur when Chrome is displayed on an external monitor (at 1920x1200)
 

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	devtools-bug.mov 2.0 MB View Download

Deleted: Screen Shot 2018-03-09 at 08.03.15.png 31.5 KB

	Screen Shot 2018-03-09 at 08.03.15.png 31.5 KB View Download

Deleted: Screen Shot 2018-03-09 at 08.03.05.png 26.1 KB

	Screen Shot 2018-03-09 at 08.03.05.png 26.1 KB View Download