This bug was fixed in the package gnome-control-center -
1:3.38.5-1ubuntu2
---------------
gnome-control-center (1:3.38.5-1ubuntu2) hirsute; urgency=medium
[ Marco Trevisan (Treviño) ]
* debian/control, debian/gbp.conf:
Update references to ubuntu/hirsute branch
* 0033-display-Ensure-we-list-available-scaling-values-keeping-t.patch:
Ensure we list all the usable scaling values (LP: #1795483)
[ Hui Wang ]
* d/p/git-Fix-volume-adjustment-failure-on-volume-slider.patch:
Can't adjust the output volume via volume-slider after changing
the current output-device. (LP: #1938747)
-- Gunnar Hjalmarsson <[email protected]> Tue, 03 Aug 2021 15:23:41
+0200
** Changed in: gnome-control-center (Ubuntu Hirsute)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1795483
Title:
Experimental setting to enable fractional Hi-DPI scaling offers no
option larger than 200% on 15.6 inch, 3840 x 2160 pixel display (Dell
XPS 15 9575)
Status in gnome-control-center package in Ubuntu:
Fix Released
Status in gnome-control-center source package in Focal:
In Progress
Status in gnome-control-center source package in Hirsute:
Fix Released
Bug description:
[ Impact ]
On my laptop's 15.6 inch, 3840 x 2160 pixel (282 PPI) display, the
available scaling options in the gnome-control-center display settings
are limited to 100, 200, 300, and 400%. This is insufficient as 200%
is too small and 300% is too large. The missing fractional scaling
options are dealt with in bug #1687246. However, the currently
available experimental feature to enable fractional scaling (provided
in the bug description of #1687246) does not solve the problem on my
machine:
gsettings set org.gnome.mutter experimental-features "['scale-monitor-
framebuffer']"
After applying and rebooting, the options offered change to 100, 125,
150, 175, and 200%. Note that there is no value larger than 200% which
is too small on this display at least for me.
In addition, the 25% steps enabled by the experimental option seem too
far apart. With 200%, I am using a font scaling value in Gnome Tweaks
of 1.20, so I suppose a fractional scaling of approx 240% would be
equivalent.
In bug #1687246, Daniel van Vugt (vanvugt) advised to open a new bug
for gnome-control-center and added that "gnome-control-center seems to
limit the scale to 200% on some machines, 300% on others. And I think
I have seen 400% offered in some cases. I don't know why, but the
inconsistency is definitely annoying."
[ Test case ]
In a setup with a display with HighDPi resolution (higher than 2880x1800)
- Open gnome-control-center display panel
- Scaling should show 5 level buttons to select
- Selecting higher values will show all the selectable values closer to the
chosen one
- Any value could be used from 100% up to 400% (maximum varies on resolution)
[ Regression potential ]
Control center won't show any scaling value, or scaling value may be
wrong.
---
ProblemType: BugDistroRelease: Ubuntu 18.10
Package: gnome-control-center 1:3.30.0-0ubuntu1
Uname: Linux 4.19.0-041900rc5-generic x86_64
ApportVersion: 2.20.10-0ubuntu11
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Oct 1 19:29:11 2018
InstallationDate: Installed on 2018-09-13 (17 days ago)
InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64
(20180912)SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)
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