Public bug reported:
Initially posted here https://gitlab.gnome.org/GNOME/gnome-
shell/-/issues/4585#note_12590270
Affected version
Ubuntu 21.04 5.11.0-31-generic
GNOME Shell 3.38.4
Tested on Wayland
Bug summary
With 2 UHD screens(3840x2160) and one QHD screen(2560x1440), the fractional
scaling of the two UHD screens to 125 percent results in the gnome shell panels
to be too short in width on the right side. The panel does not reach the end of
the screen on the right side on the UHD monitor. The panel on the QHD monitor
is fine.
Also the mouse hovers the wrong icons, the position is translated to the left
of the actual position. In the screenshots, the actual mouse pointer hovers on
the bottom panel settings icon, but clicks would be registered on the icon left
to it. The offset increases as the mouse moves to the right.
All other applications are unaffected and work fine (Nautilus, browser, etc.).
It just affects the gnome-shell.
The bug does not occur when:
I use fractional scaling on just the two UHD screens (QHD monitor disconnected).
When I use fractional scaling to 150 percent on the two UHD screens. This
results in the same relative size to the QHD screen.
Steps to reproduce
Connected one UHD and one QHD screen.
Set the UHD screen to fractional scaling of 125 percent.
Look at the gnome panels. Move your mouse over the panels and see the wrong
icons being highlighted.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: gnome-shell-extension-ubuntu-dock 69ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-31.33-generic 5.11.22
Uname: Linux 5.11.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 30 11:33:44 2021
InstallationDate: Installed on 2021-01-05 (236 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
PackageArchitecture: all
SourcePackage: gnome-shell-extension-ubuntu-dock
UpgradeStatus: Upgraded to hirsute on 2021-05-12 (109 days ago)
** Affects: gnome-shell-extension-ubuntu-dock (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug hirsute third-party-packages wayland-session
** Attachment added: "screenshot of the issue"
https://bugs.launchpad.net/bugs/1942066/+attachment/5521617/+files/Screenshot%20from%202021-08-29%2018-14-01.png
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https://bugs.launchpad.net/bugs/1942066
Title:
Fractional scaling with 2 UHD and one QHD screen renders gnome-panel
too short, and mouse pointer is off as well
Status in gnome-shell-extension-ubuntu-dock package in Ubuntu:
New
Bug description:
Initially posted here https://gitlab.gnome.org/GNOME/gnome-
shell/-/issues/4585#note_12590270
Affected version
Ubuntu 21.04 5.11.0-31-generic
GNOME Shell 3.38.4
Tested on Wayland
Bug summary
With 2 UHD screens(3840x2160) and one QHD screen(2560x1440), the fractional
scaling of the two UHD screens to 125 percent results in the gnome shell panels
to be too short in width on the right side. The panel does not reach the end of
the screen on the right side on the UHD monitor. The panel on the QHD monitor
is fine.
Also the mouse hovers the wrong icons, the position is translated to the left
of the actual position. In the screenshots, the actual mouse pointer hovers on
the bottom panel settings icon, but clicks would be registered on the icon left
to it. The offset increases as the mouse moves to the right.
All other applications are unaffected and work fine (Nautilus, browser,
etc.). It just affects the gnome-shell.
The bug does not occur when:
I use fractional scaling on just the two UHD screens (QHD monitor
disconnected).
When I use fractional scaling to 150 percent on the two UHD screens. This
results in the same relative size to the QHD screen.
Steps to reproduce
Connected one UHD and one QHD screen.
Set the UHD screen to fractional scaling of 125 percent.
Look at the gnome panels. Move your mouse over the panels and see the wrong
icons being highlighted.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: gnome-shell-extension-ubuntu-dock 69ubuntu1
ProcVersionSignature: Ubuntu 5.11.0-31.33-generic 5.11.22
Uname: Linux 5.11.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu65.1
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 30 11:33:44 2021
InstallationDate: Installed on 2021-01-05 (236 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
PackageArchitecture: all
SourcePackage: gnome-shell-extension-ubuntu-dock
UpgradeStatus: Upgraded to hirsute on 2021-05-12 (109 days ago)
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