Public bug reported:
Affected version
* Ubuntu 25.04 Plucky Puffin, GNOME 48.0-1ubuntu1, but can be reproduced on
24.10 as well
* Mutter 48.1-1ubuntu3
* Wayland (different issue on X.Org)
* Tested on FUJITSU E5412 with 1920x1080 13" screen and Intel Iris Xe graphics
Bug summary
When fractional scaling is set to 125%, windows using XWayland (e.g. Steam,
Wine...) are rendered tremendously small, smaller than they were if scaling
were set to 100% if xwayland-native-scaling is enabled in dconf. If only
scale-monitor-framebuffer is enabled, then XWayland windows are rendered at the
correct size, but are blurry (as expected). See below for screenshots.
Steps to reproduce
1. Scaling at 100%: XWayland windows render fine but are slightly small due to
the screen's high DPI.
2. Enable 125% fractional scaling from settings
3. Make sure org.gnome.mutter.experimental-features is set to
['scale-monitor-framebuffer', 'xwayland-native-scaling']
4. Open an XWayland window (e.g. wine winecfg). Window is rendered very small
(smaller than at 100% scaling)
5. Set org.gnome.mutter.experimental-features to ['scale-monitor-framebuffer']
* Reopen an XWayland window. Window is rendered at the correct size.
What happened
With org.gnome.mutter.experimental-features set to
['scale-monitor-framebuffer', 'xwayland-native-scaling'], the XWayland window
is rendered way too small.
What did you expect to happen
With org.gnome.mutter.experimental-features set to
['scale-monitor-framebuffer', 'xwayland-native-scaling'], the XWayland window
should be rendered to the correct size.
Thank you in advance for any help.
** Affects: mutter (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "The window rendered extremely small with
xwayland-native-scaling"
https://bugs.launchpad.net/bugs/2110515/+attachment/5877054/+files/immagine2.png
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https://bugs.launchpad.net/bugs/2110515
Title:
fractional scaling - XWayland windows rendered extremely small if
xwayland-native-scaling is enabled
Status in mutter package in Ubuntu:
New
Bug description:
Affected version
* Ubuntu 25.04 Plucky Puffin, GNOME 48.0-1ubuntu1, but can be reproduced on
24.10 as well
* Mutter 48.1-1ubuntu3
* Wayland (different issue on X.Org)
* Tested on FUJITSU E5412 with 1920x1080 13" screen and Intel Iris Xe graphics
Bug summary
When fractional scaling is set to 125%, windows using XWayland (e.g. Steam,
Wine...) are rendered tremendously small, smaller than they were if scaling
were set to 100% if xwayland-native-scaling is enabled in dconf. If only
scale-monitor-framebuffer is enabled, then XWayland windows are rendered at the
correct size, but are blurry (as expected). See below for screenshots.
Steps to reproduce
1. Scaling at 100%: XWayland windows render fine but are slightly small due
to the screen's high DPI.
2. Enable 125% fractional scaling from settings
3. Make sure org.gnome.mutter.experimental-features is set to
['scale-monitor-framebuffer', 'xwayland-native-scaling']
4. Open an XWayland window (e.g. wine winecfg). Window is rendered very small
(smaller than at 100% scaling)
5. Set org.gnome.mutter.experimental-features to ['scale-monitor-framebuffer']
* Reopen an XWayland window. Window is rendered at the correct size.
What happened
With org.gnome.mutter.experimental-features set to
['scale-monitor-framebuffer', 'xwayland-native-scaling'], the XWayland window
is rendered way too small.
What did you expect to happen
With org.gnome.mutter.experimental-features set to
['scale-monitor-framebuffer', 'xwayland-native-scaling'], the XWayland window
should be rendered to the correct size.
Thank you in advance for any help.
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