Display won't rotate, rotate lock/unlock button missing, can't rotate screen with xrandr commands

[Mark Johnston]

I lost ability to rotate the display upon upgrade to 20.04.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.1-5ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30
Uname: Linux 5.4.0-24-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Apr 19 15:04:26 2020
DisplayManager: gdm3
RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to focal on 2020-04-18 (1 days ago)

[Mark Johnston (markcj)]

Sorry - not a total noob here, but enough to embarrass myself... I had to boot with "nomodeset" in order to get my machine to boot. That caused the situation I described here. When I blacklisted the nouveau video driver, I got my functionality back.

For those who know better how to fix these things - the real problem is that the nouveau driver didn't work on my XPS 13 9365, causing it to hang while trying to boot.

[Daniel van Vugt (vanvugt)]

Thanks for the clarification.

Can you please report that second "real" issue as a new bug by running:

  ubuntu-bug linux