https://bugs.kde.org/show_bug.cgi?id=476592
Bug ID: 476592
Summary: Incorrect output for the color-scheme portal
Classification: Plasma
Product: xdg-desktop-portal-kde
Version: git-master
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: putr...@gmail.com
CC: aleix...@kde.org, jgrul...@redhat.com, n...@kde.org
Target Milestone: ---
SUMMARY
In Plasma 6, the color scheme portal outputs its result in a slightly different
format, which at minimum stops libadwaita apps (for example Epiphany/GNOME Web,
Flatseal and so on) from switching to dark mode automatically following the
rest of the system. The same apps work fine in a Plasma 5 session.
The libadwaita apps show this error message in the terminal: "Invalid type for
org.freedesktop.appearance.color-scheme: expected u, got v".
STEPS TO REPRODUCE
1. Run a Plasma 6 session
2. Use a dark color scheme
3. Open GNOME Web or Flatseal (or any libadwaita app that follows the color
scheme preference)
OBSERVED RESULT
The opened app stays in light mode.
EXPECTED RESULT
The opened app should be in dark mode.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.27.80
KDE Frameworks Version: 5.240.0
Qt Version: 6.6.0
Kernel Version: 6.5.9-arch2-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 6800H with Radeon Graphics
Memory: 30.6 GiB of RAM
Graphics Processor: AMD Radeon Graphics
ADDITIONAL INFORMATION
xdg-desktop-portal-kde is at commit 3dc22a2c75d5533ab518b03b9201052c59e842ab
when I compiled it.
Also, here is the difference between the portal output for Plasma 5 and 6
respectively:
Plasma 5 (working):
➜ ~ dbus-send --print-reply=literal --dest=org.freedesktop.portal.Desktop
/org/freedesktop/portal/desktop org.freedesktop.portal.Settings.Read
string:org.freedesktop.appearance string:color-scheme
variant variant uint32 1
➜ ~ dbus-send --print-reply=literal
--dest=org.freedesktop.impl.portal.desktop.kde /org/freedesktop/portal/desktop
org.freedesktop.impl.portal.Settings.Read string:org.freedesktop.appearance
string:color-scheme
variant uint32 1
Plasma 6 (not working):
➜ ~ dbus-send --print-reply=literal --dest=org.freedesktop.portal.Desktop
/org/freedesktop/portal/desktop org.freedesktop.portal.Settings.Read
string:org.freedesktop.appearance string:color-scheme
variant variant variant uint32 1
➜ ~ dbus-send --print-reply=literal
--dest=org.freedesktop.impl.portal.desktop.kde /org/freedesktop/portal/desktop
org.freedesktop.impl.portal.Settings.Read string:org.freedesktop.appearance
string:color-scheme
variant variant uint32 1
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