HiDPI 200% cursor scaling not respected on Ubuntu 22.04 Gnome

[ComplexPlane]

I have 200% scaling set on Ubuntu 22.04 (Gnome), but the cursor in flatpak MPV looks like it is scaled at 100% (half what it should be). This isn't an issue in mpv from apt (both v0.34.1).

[fastrizwaan]

Does it also happen with other flatpak based mpv like celluloid?
https://flathub.org/apps/details/io.github.celluloid_player.Celluloid

[ComplexPlane]

Cursor looks correct on celluloid flatpak for me

[fastrizwaan]

Run this and restart flatpak mpv:

sudo flatpak override --env=XCURSOR_SIZE=64 io.mpv.Mpv .

run this:
gsettings set org.gnome.desktop.interface cursor-size 64

or use accessibility->Cursor size to set

Since, I am using debian testing (bookworm) = gnome+adwaita-theme+xorg+nvidia, and tweaks tool scaling factor to 2.0 change does not change cursor size.

[Xathros1]

See how this was solved in Signal flatpak:
flathub/org.signal.Signal@831398d

[fastrizwaan]

please check #154

[Xathros1]

please check #154

no, it didn't fix the issue unfortunately.

[fastrizwaan]

It is not related to mpv flatpak but freedesktop sdk in general.

I'd suggest reporting this issue to flatpak.

[Xathros1]

I've found a solution which does work for me.

In my case it was necessary to add Adwaita as the cursor theme additionally to the cursor size mentioned above

flatpak --user override --env=XCURSOR_THEME=Adwaita io.mpv.Mpv
flatpak --user override --env=XCURSOR_SIZE=32 io.mpv.Mpv

btw about cursor sizes (Gnome Accessibility - Mouse pointer size)
small (default) = 24, medium = 32, large = 48, larger = 64, largest = 96;

without specifying the theme it won't adjust it for whatever reason.