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Wine Wayland gains fractional scaling support


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The Windows compatibility layer Wine is expanding its Wayland support some more, with fractional scaling support landing recently.

Quick-reminder: Valve's Proton is forked from Wine, it's one of the big bits of tech behind the scenes that allows so many thousands of Windows games to run so nicely on Linux / SteamOS systems like the Steam Deck. Along with the Steam Machine and Steam Frame coming this Summer.

In a code request titled "winewayland: Implement fractional scaling protocol", developer Etaash Mathamsetty mentioned:

The idea behind this is to use fractional scaling to make it appear as if the Wine environment is running at the user-specified DPI in winecfg while keeping the windows looking crisp. This enables users to have different fractional scales per display under wine without causing blur. This matches the behavior under XWayland and is actually better than the XWayland behavior when using multiple displays with different fractional scales.

FWIW: Mutter has a bug with its implementation of fractional scaling that has been recently fixed in case this compositor is being used to try this implementation: https://gitlab.gnome.org/GNOME/mutter/-/work_items/4834

With this code getting merged on Monday, June 15th, it should be ready for the next Wine release of Wine 11.12 that's due out around June 26th.

Wine 11.11 that was released last week also had support for layered windows in the Wayland driver, so Wine's full Wayland support is really starting to come together now. Hopefully it won't be long before everything works fully.

Article taken from GamingOnLinux.com.
Tags: Misc, Open Source, Upcoming, Wine
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5 comments
Jarmer 18 hours ago
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This is great! With so many distros now wayland only, this helps a ton for all of us.
Sethox 13 hours ago
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Quoting: JarmerThis is great! With so many distros now wayland only, this helps a ton for all of us.
There is also this [Pull Request](https://gitlab.winehq.org/wine/wine/-/merge_requests/11172) from the same user, what it does is the beginning to add HDR for Wine Wayland.
sonic2kk 6 hours ago
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This is the single biggest headache for non-gaming Wine usage for me, and it's finally fixed!! No more blurry applications on my 4k scaled display, and no more setting DPI for X11. Now if we can get the Wayland driver to use server-side decorations and use the system mouse cursor, the Wayland driver would finally be complete for my non-gaming use-cases! But those are wishlist items, the fractional scale issue has been bugging me since I could enable the Wayland driver and it's the sole reason I've felt it off for my system Wine prefixes.

I am ecstatic that this is fixed and I cannot wait to try this out.

Last edited by sonic2kk on 18 Jun 2026 at 1:46 am UTC
Shmerl 5 hours ago
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What's the right way to configure it? Sounds like you need some DPI setting in the wine prefix in addition to actual scaling setting of the actual Wayland compositor.
linuxisdabest 3 hours ago
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> What's the right way to configure it? Sounds like you need some DPI setting in the wine prefix in addition to actual scaling setting of the actual Wayland compositor.

The MR says the opposite of that. The DPI setting in the wine prefix is now independent of the compositor scaling.
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