Questions[scaling](ubuntu)

I'm running Ubuntu 20.04 on an ASUS X99-E-10G WS w/ an NVIDIA 1080Ti and an LG 4k 32" monitor which persistently gets recognized as 27".

When I log in, the text of certain UI elements is ~2x the normal size. After I go to settings/universal access and turn large text on and then off again, everything is the normal size I expect.

Screenshot after logging in

After turning "large text" on

After turning "large text" off

How do I get the conditions I have after cycling the "large text" feature to be present immediately after booting?

I have the 440 version of NVIDIA's drivers installed.

I have fractional scaling working at 150% on one display and 100% on the other. When I reboot, these settings are forgotten (as well as the relative position of displays).

How do I persist my settings? This is on Ubuntu 19.10.

I have 3 monitors, the left one is 4k, while the other 2 are 1080p. The problem I am having is that if I have the 1080p monitors on normal scaling, the 4k monitor is basically unusable because everything is too small, but if i set the 4k monitor to 200%, gnome automatically changes the scaling of the other 2 monitors and makes them unusable due to everything being too far zoomed in.

What can I do here? Is there anything in gnome tweaks that can fix this?

I recently installed Ubuntu 18.04 and discovered that the fractional scaling option that was in 16.04 is no longer there. 200% is too big for my display, and this answer didn't work for me (the options didn't change after running the command).

Is there another way to get fractional scaling?

I am having problems with image quality when reducing images or zooming out in certain applications. It looks almost as if the image is not being smoothed or anti-aliased.

On the left is gthumb/eog (look the same) - on the right is gimp. Left one is clearly broken. It never used to be like that. Those are at 20% zoom.

Eye of Gnome (EoG) and GThumb both suffer from it when resizing to reduce, and when zooming out to reduce, but oddly Gthumb doesn't suffer when generating thumbnails. Shotwell and Gimp are unaffected. Libre Office is affected.

Given this, I wonder if anyone might know which component(s?)/issues are the cause? I'm on a 64-bit precise with NVidia 8800 GTX (nouveau).

EDIT: Additional information. If i use the tools dropdown button in the top toolbar of Gthumb, it reduces images size and retains full quality. If I instead click the paint palette at the top right to enter Edit Mode, and resize from in there, it loses quality. The "high quality" check box makes a difference but not significantly. The zoom also loses quality. I am wondering if perhaps it doesn't have 2 rendering modes and 1 is broken?

EDIT 05May2012: I have since discovered that

(a) The image quality for EoG and Gthumb suffered its regression in Oneiric (Maverick, Natty work fine).

(b) It is not limited to Ubuntu, it also affected Fedora 16.

So I'll take as an accepted answer anyone who can either fix that or advise me how to go bug reporting this. I don't really know which packages to apply it to, or whether it needs to go to Ubuntu or GNOME. Thanks!