** Changed in: mutter (Ubuntu Focal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1793496
Title:
scaling changes when closing/re-opening the lid
Status in Mutter:
New
Status in mutter package in Ubuntu:
Fix Released
Status in mutter source package in Bionic:
In Progress
Status in mutter source package in Focal:
Fix Released
Bug description:
[ Impact ]
scaling changes when closing/re-opening the lid. Seen in bionic.
My 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
[ Test case ]
In a laptop with HiDPI screen, force the scaling to 1:
Run this and close the lid:
xprop -spy -root RESOURCE_MANAGER
Once reopened the value should not change and if it does the
`Xft.dpi:\t96` value should stay constant, and not change to 192.
[ Regression potential ]
Wrong resolution is set for the laptop lid
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