[Bug 56287] New: Resolution Recognition Error

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56287

Bug ID: 56287
           Summary: Resolution Recognition Error
           Product: Wine
           Version: 9.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Gnome+Wayland, if you turn on Gnome Settings-Display-Fractional Scaling, wine
incorrectly recognizes the resolution of the screen. For example, my PC screen
resolution is 2880*1800, after I turn on 150% fractional scaling, wine can only
read the maximum resolution of 1920*1200. I'm not sure if this error is caused
by Gnome or WineHQ.

[Bug 56287] Resolution Recognition Error

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56287

[e-mail] changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #1 from [e-mail] ---
1920 * 1.5 = 2880. I am having the exact same issue, tested in a VM with
fullscreen games. I can provide more info if necessary. A similar bug also
exists for spice display VMs, which render at a higher-than-native but still
blurred resolution.
GNOME, unless an app is using the newest GTK 4.14, achieves wayland fractional
scaling by rendering at a higher resolution and downscaling to native.

It does this using integer scale, so it works well, but this seems to confuse
some apps, like Spice Display, which displays VMs at the higher resolution and
downscales them poorly to normal size, or Wine, which seems to see the lower
resolution instead (i.e. the resolution that is mimicked with fractional
scaling).