Ubuntu
gnome-control-center package

When turn on/off "Fractional Scaling", desktop display size is smaller than screen size

Bug #2042421 reported by Bin Li on 2023-11-01

This bug report is a duplicate of: Bug #1967450: When switching from fractional scaling back to integer scaling, only part of the screen is used. Edit Remove

This bug affects 2 people

	Status	Importance	Assigned to
OEM Priority Project	Confirmed	High	Bin Li
gnome-control-center (Ubuntu)	Confirmed	Undecided	Unassigned
mutter (Ubuntu)	Confirmed	Undecided	Unassigned

Bug Description

Produce step:
1. Install 22.04 or 23.10 image
2. enter the systeam open display Settings
3. turn on "Fractional Scaling" and set Scale 125% and click aply
4. turn off "Fractional Scaling" and click aply

[Expected result]
display normal.

[Actual result]
display abnormal

Fail rate: 100%

More info:
1. Cannot be reproduced on X11, it only happens on Xwayland.
2. It will be normal after shut down or log out

Tags:

Bin Li (binli) on 2023-11-01

tags:

added: oem-priority originate-from-2039756 sutton

Revision history for this message

Bin Li (binli) wrote on 2023-11-01:

screen_size.jpg Edit (275.6 KiB, image/jpeg)

Changed in oem-priority:
assignee:	nobody → Bin Li (binli)
importance:	Undecided → High

Revision history for this message

Bin Li (binli) wrote on 2023-11-01:

scale_125.mp4 Edit (2.9 MiB, video/mp4)

Here is the video to reproduce this issue.

Bin Li (binli) on 2023-11-01

Changed in oem-priority:
status:	New → Confirmed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2023-11-09:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gnome-control-center (Ubuntu):
status:	New → Confirmed
Changed in mutter (Ubuntu):
status:	New → Confirmed

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2023-11-09:

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1967450, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.