Just tested with loupe (rust, glib) and the results are similar to eog: slight blurriness.
It's more evident when you use a highly detailed image like this: https://paste.anarc.at/publish/2025-01-20-Ie2Gs5QhtTBWLYdIf9XuPD-6jrIzTSvElDNmahN-Fj0/DSCF8443.jpg Here's the image, in fullscreen, with gwenview: https://paste.anarc.at/publish/2025-01-21-OsAUOgRllZpna1rl4HdrB12Wk6cwAQmPy8tni19CR7o/snap-20250121T000339.png And in loupe: https://paste.anarc.at/publish/2025-01-21-eCYBYlqcokxNCZ2zw-HYaKGlFtQbINWlDfl5DnJlrig/snap-20250121T000502.png The difference is subtle, but when you start looking at it, you can't unsee it. Look at the stars, how they "dim" out, or the branches in the tree on the right, normally pretty sharp, somehow dissolving in loupe. When I load those two images in gwenview, they actually look *more* similar than when I look at the two renderings on screen, where the loupe render is much blurrier. Now, this could also be issues with the renderers themselves at this point, and not wayland. The more I look into this, the more I get lost. One thing is sure for me now: geeqie is doing it wrong. Here's a screenshot of geeqie rendering the same image, again: https://paste.anarc.at/publish/2025-01-21-fAkhQY_OJybKbMthAnUMtA1BCvnRkSsYYU7nfj93Aek/snap-20250121T001048.png Now that is *clearly* more blurry to me. So maybe this is more specific to geeqie than GTK in general, but I can't shake the feeling there's something wrong across the board here. There has been scaling issues in Geeqie in the past, so that might be part of why it's misbehaving so badly: https://github.com/BestImageViewer/geeqie/issues/561 -- Sous un gouvernement qui emprisonne injustement, la place de l’homme juste est aussi en prison. - La désobéissance civile, Henry David Thoreau