This has been fixed by
mutter (3.32.0-1ubuntu2) disco; urgency=medium
* debian/patches/x11-Add-support-for-fractional-scaling-using-Randr.patch:
- Don't invert the screen size when rotation is enabled (LP: #1822513)
- Remove unneeded cleanup changes
- Use xcb checked function to set scaling to catch errors
- Update screen size only after monitors modes have been derived
(LP: #1822616)
- Trigger a monitors rebuild only if scale has changed (LP: #1823485)
- Only update UI scaling when output scaling is enabled (LP: #1822478)
-- Marco Trevisan (Treviño) Wed, 03 Apr 2019 19:19:59 -0400
I expect this is fixed by
https://gitlab.gnome.org/GNOME/mutter/merge_requests/336 (issue
https://gitlab.gnome.org/GNOME/mutter/issues/407)
** Changed in: mutter (Ubuntu)
Status: Triaged => Fix Released
** Bug watch added: gitlab.gnome.org/GNOME/mutter/issues #407
https://gitlab.gnome.org/GNOME/mutter/issues/407
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https://bugs.launchpad.net/bugs/1793496
Title:
scaling changes when closing/re-opening the lid
Status in mutter package in Ubuntu:
Fix Released
Bug description:
scaling changes when closing/re-opening the lid. Seen in bionic.
Mz scaling is set to 100%, but the laptop is considered highdpi by
mutter, and during suspend/resume it changes back to default ignoring
settings.
$ xprop -spy -root RESOURCE_MANAGER
[...]
RESOURCE_MANAGER(STRING) =
"*customization:\t-color\nXft.dpi:\t192\nXft.antialias:\t1\nXft.hinting:\t1\nXft.hintstyle:\thintslight\nXft.rgba:\trgb\nXcursor.size:\t48\nXcursor.theme:\tDMZ-White\n"
RESOURCE_MANAGER(STRING) =
"*customization:\t-color\nXft.dpi:\t96\nXft.antialias:\t1\nXft.hinting:\t1\nXft.hintstyle:\thintslight\nXft.rgba:\trgb\nXcursor.size:\t24\nXcursor.theme:\tDMZ-White\n"
xrandr
Screen 0: minimum 320 x 200, current 2560 x 1440, maximum 8192 x 8192
eDP-1 connected primary 2560x1440+0+0 (normal left inverted right x axis y
axis) 309mm x 174mm
2560x1440 60.00*+ 59.99 59.99 59.96 59.95
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