I'm not sure Xorg sessions are meant to support different scaling
factors per display. Because Xorg forces all compositors to render all
monitors from the same framebuffer. So presumably all displays are stuck
with the same scaling factor. This is fixed in Wayland sessions, but
Nvidia has too many bugs on Wayland in 24.04, which is only fixed in
24.10 and later.
Because of all this, and the fact that we expect Xorg sessions to be
removed completely in 25.10, this bug is a "Won't fix" for future
Ubuntu. But there's a small chance it's fixable for 24.04 Xorg sessions.
The artifacts you mention sound like bug 1924689.
** Summary changed:
- Wrong font scaling with multiple displays
+ Wrong fractional scaling with multiple displays on Xorg
** Changed in: mutter (Ubuntu)
Status: New => Won't Fix
** Also affects: mutter (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: mutter (Ubuntu Plucky)
Importance: Undecided
Status: New
** Also affects: mutter (Ubuntu Questing)
Importance: Undecided
Status: Won't Fix
** Also affects: mutter (Ubuntu Oracular)
Importance: Undecided
Status: New
** Changed in: mutter (Ubuntu Oracular)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/2113859
Title:
Wrong fractional scaling with multiple displays on Xorg
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