During testing the live Lubuntu ISO, the monitor resolutions do not work as expected.

[KGIII]

Lubuntu Live ISO 21.04 Hirsute 20201118
VirtualBox v. 6.1

Open the preferences > monitor > adjust screen resolution > choose high resolution > click apply

At this point, a new window opens. It asks if you want to accept the changes or get rid of them.

No matter what you click, a system notification applet (such as the calendar) will open up and be displayed and the mouse clicks do nothing.

lsb_release -rd
Description: Ubuntu Hirsute Hippo (development branch)
Release: 21.04

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: lxqt-config 0.15.0-0ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-25.26-generic 5.8.14
Uname: Linux 5.8.0-25-generic x86_64
ApportVersion: 2.20.11-0ubuntu51
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.455
CurrentDesktop: LXQt
Date: Thu Nov 19 01:20:02 2020
LiveMediaBuild: Lubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20201118)
SourcePackage: lxqt-config
UpgradeStatus: No upgrade log present (probably fresh install)

[KGIII (uninvolved)]

Video can be seen attached.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1904803

[KGIII (uninvolved)]

Bug does not appear in today's build (20201122), effective as of the date indicated by the build date. I'll keep checking for it to see if it returns.

[Chris Guiver (guiverc)]

Thank you for reporting this bug to Ubuntu.

I'm changing this bug report to INCOMPLETE as per comment #4, and as the QA-tracker list (see comment #3) lists only that single occurrence.

If the issue occurs again, please change status back to "NEW" and leave a comment providing details. Thank you for your testing, and help in making our Lubuntu product better.

[Launchpad Janitor (janitor)]

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