[regression][nvidia] gnome-shell is very large

[Josh]

Everything from gnome-shell is very large.

I use NVIDIA drivers. Tried reinstalling gnome-shell, disabled extensions, checked scaling, deleted setting files, nothing worked.

I created a new user, gnome-shell has the same issue in the beginning. Alt + F2 resets shell to normal size, but on logout/login everything is large again. This doesn't work on my user tho.
Notifications, etc are extremely large.

Just everything from the shell is like 40% larger than it should be. This also happens with default themes, settings, etc.

Screenshot: https://imgur.com/a/oo5I7lZ

gnome-shell: 3.32.0
OS: Ubuntu 19.04 Development Branch

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: gnome-shell 3.32.0-1ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
Uname: Linux 5.0.0-8-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 2 17:14:00 2019
DisplayManager: gdm3
InstallationDate: Installed on 2019-01-09 (82 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to disco on 2019-03-30 (3 days ago)

[Daniel van Vugt (vanvugt)]

Please try installing the previous version of mutter by downloading *.deb from:

https://launchpad.net/ubuntu/+source/mutter/3.32.0-1/+build/16489975

[Josh (josh1dev)]

Bug still persists on those versions, installed all the .deb packages with Package Manager, didn't work unfortunately. My OS froze and had to fix with command line.

Maybe I did something wrong, but it didn't work.

[Daniel van Vugt (vanvugt)]

OK, try this:

1. Download the .deb files only from https://launchpad.net/ubuntu/+source/mutter/3.32.0-1/+build/16489975

2. In a terminal install them all with: dpkg -i *.deb

[Josh (josh1dev)]

This worked like a charm. Thanks Daniel!!

Issue has been resolved.

[Daniel van Vugt (vanvugt)]

Good. Unfortunately downgrading is not a permanent fix. Next time you update your system it will upgrade again to the version that wasn't working.

[Josh (josh1dev)]

Bug has returned, not sure why to be honest but it seems like this should be fixed, I saw other people having trouble with this as well.

[Daniel van Vugt (vanvugt)]

I feel like this bug is going to be related to bug 1822478. Since they're both caused by the same change in the same update.

[Josh (josh1dev)]

Bug returns after 2 reboots.

[Marco Trevisan (Treviño) (3v1n0)]

Can you please try packages from this PPA and check if they work as expected?
 - https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3695