gdm login screen has small icons/text on 4k/UHD monitors

[Jesse]

BEHVAIOR
When logging into Ubuntu 17.10, GDM shows all the icons, mouse, and text rather small on 4k monitors (3820 x 2160 resolution).

EXPECTED/DESIRED BEHAVIOR
For the icons, mouse and text to be displayed and scaled proportionately to how it would look on Full HD (1920x1080) resolution monitors.

BUG DISCOVERED USING
Ubuntu 17.10
GNOME Shell 3.26.1 (Ubuntu-modified version)
Xorg 1.19.5
Nvidia GTX 1080 graphics
Nvidia 384.90 graphics driver
Linux kernel 4.13.0-17-generic

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 17.10 (artful) reached end-of-life on July 19, 2018.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in and change the bug status to Confirmed.

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for gdm3 (Ubuntu) because there has been no activity for 60 days.]