I've tracked down the origin of the 16384 limit. It's a combination of:
* Xorg treating all monitors as a single framebuffer; and
* The modesetting driver getting the maximum dimensions from the kernel via
drmModeResPtr; and
* The Intel kernel graphics driver limiting framebuffer sizes to
The blurry text issue is tracked in:
https://gitlab.gnome.org/GNOME/mutter/-/issues/1787
https://gitlab.gnome.org/GNOME/mutter/-/issues/2328
I hope to reattempt a fix for it this year.
** Changed in: mutter (Ubuntu)
Status: Incomplete => New
** Bug watch added:
I can't use Wayland yet due to an app compatibility issue: JetBrains
IDEs (ex: IntelliJ) text is blurry, hurts eyes
(https://youtrack.jetbrains.com/issue/IDEA-218458).
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Yes, I see those messages.
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https://bugs.launchpad.net/bugs/2017323
Title:
Triple 4K monitor setup with fractional scaling truncated
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Please check to see if the log messages from bug 2004533 appear in your
logs.
** Changed in: mutter (Ubuntu)
Status: New => Incomplete
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This might be related to bug 1875285 but your analysis of cropping at
the 16384 boundary sounds more likely.
For other related bugs, please refer to this list:
https://bugs.launchpad.net/ubuntu/+bugs?field.tag=xrandr-scaling
but realistically for a desktop bigger than 16K I think the only way
** Tags added: xrandr-scaling
** Package changed: xorg (Ubuntu) => mutter (Ubuntu)
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https://bugs.launchpad.net/bugs/2017323
Title:
Triple 4K monitor setup with
