1) Ubuntu 22.04.3 LTS with Gnome and Wayland
2) Unsure what package is the problem, here are the versions of a few:
gnome-shell 42.9-0ubuntu2
xdg-desktop-portal 1.14.4-1ubuntu2~22.04.1
xdg-desktop-portal-gnome 42.1-0ubuntu1
xdg-desktop-portal-gtk 1.14.0-1build1
3) expected: with fractional scaling enabled, sharing a window to an application would share the full window
4) actual: for some apps, only the top-right part of the window is shared
Some apps are displayed correctly, like terminal and file explorer, but other apps only show the top-right, such as virtualbox and vscodium. When fractional scaling is disabled, these apps share properly again.
It doesn't seem to depend on the app you are sharing to, I tested it on firefox, chromium, and OBS studio and it was consistent across all 3. Attached is a screenshot of virtualbox being shared through chromium and only the top left part of the window is being shared.
Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https:/
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