i can observe no fractional scaling on a default installation dell xps5790 even
with a single monitor (4k).
Connecting a second monitor the scaling is not working separately either.
The most obvious effect is that the right side (top bar) goes off screen.
I tried scaling with different display resolution to no avail.
I eventually started just using a lower display resolution and gave up
on fractional scaling.
nvidia 450
libmutter-6-0:
Installed: 3.36.6-1ubuntu0.20.04.2
--------
xrandr program version 1.5.0
Server reports RandR version 1.6
------------
lspci
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
(rev 02) (prog-if 00 [VGA controller])
DeviceName: Onboard IGD
Subsystem: Dell UHD Graphics 630 (Mobile)
Flags: bus master, fast devsel, latency 0, IRQ 176
Memory at eb000000 (64-bit, non-prefetchable) [size=16M]
Memory at 80000000 (64-bit, prefetchable) [size=256M]
I/O ports at 4000 [size=64]
Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
I found the prime-select toggle and set it to intel... same issue
** Attachment added: "xrandr --verbose #during broken scaling"
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1857383/+attachment/5431932/+files/xrandr.txt
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https://bugs.launchpad.net/bugs/1857383
Title:
Fractional scaling applies to both monitors when you only want it on
one
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