Add window-scaling/hiDPI option
Submitted by David King
Link to original bug (#708382)
Description
Now that GTK+ has support for scaling windows when used with high-resolution displays, such as the ChromeBook Pixel, it would be great to have an override in Tweak Tool to make it easy to turn off the scaling:
https://plus.google.com/107646837068615384568/posts/hSwpWmN9Crx
It should be relatively straightforward, as the override is an XSetting, which gnome-settings-daemon has a plugin for (and I think Tweak Tool already changes XSettings for some other properties):
http://blogs.gnome.org/alexl/2013/06/28/hidpi-support-in-gnome/
gsettings set org.gnome.settings-daemon.plugins.xsettings overrides "{ 'Gdk/WindowScalingFactor':<2>, 'Gdk/UnscaledDPI':<92160> }"