https://bugs.kde.org/show_bug.cgi?id=483568
Bug ID: 483568
Summary: Cannot enable multiple screens at once on Wayland
Classification: Plasma
Product: kwin
Version: 6.0.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: multi-screen
Assignee: kwin-bugs-n...@kde.org
Reporter: p...@ul-kupper.de
Target Milestone: ---
Created attachment 167178
--> https://bugs.kde.org/attachment.cgi?id=167178&action=edit
Attempt to enable a second screen is not working
SUMMARY
Since the update from Plasma 5.91.0 to Plasma 6.0.1 and also in Plasma 6.0.2,
I have been unable to enable more than one screen at a time in the Wayland
session.
STEPS TO REPRODUCE
1. See attached screen capture
OBSERVED RESULT
Any attempt to enable a second display does not have any effect (both in the
Settings GUI as well as when using kscreen-doctor)
I am able to enable each display individually by disabling the previously
active display first.
Kscreen doctor command for intended screen setup (running this has no effect):
kscreen-doctor \
output.1.disable \
output.2.enable \
output.2.mode.0 \
output.2.scale.1 \
output.2.position.0,360 \
output.3.enable \
output.3.mode.0 \
output.3.scale.1.50 \
output.3.position.1920,0 \
EXPECTED RESULT
Previously, I was able to enable an arbitrary combination of displays with
mixed resolutions, scale factors and refresh rates in the Wayland session.
SOFTWARE/OS VERSIONS
Linux: linux 6.6.21-1-lts kernel
KDE Plasma Version: 6.0.2
ADDITIONAL INFORMATION
Display Setup: Internal Laptop Display (1440p) + 2 external displays (1080p &
4K) attached via Thunderbolt 4 Dock.
Output of "kscreen-doctor -o":
Output: 1 eDP-1
disabled
connected
priority 0
Panel
Modes: 0:2880x1800@90*! 1:2880x1800@60 2:1600x1200@60
3:1280x1024@60 4:1024x768@60 5:2560x1600@60 6:1920x1200@60 7:1280x800@60
8:2880x1620@60 9:2560x1440@60 10:1920x1080@60 11:1600x900@60 12:1368x768@60
13:1280x720@60
Geometry: 0,0 1440x900
Scale: 2
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: Automatic
HDR: disabled
Wide Color Gamut: incapable
ICC profile: none
Output: 2 DP-5
disabled
connected
priority 0
DisplayPort
Modes: 0:1920x1080@60*! 1:1680x1050@60 2:1600x900@60 3:1280x1024@60
4:1440x900@60 5:1280x720@60 6:1024x768@60 7:800x600@60 8:640x480@60
9:720x400@70
Geometry: 0,0 1920x1080
Scale: 1
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: Automatic
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
Output: 3 DP-7
enabled
connected
priority 1
DisplayPort
Modes: 0:3840x2160@60*! 1:3840x2160@60 2:3840x2160@60
3:3840x2160@50 4:3840x2160@30 5:3840x2160@30 6:3840x2160@25 7:3840x2160@24
8:3840x2160@24 9:2560x1600@60 10:2560x1440@60 11:1920x1080@60
12:1920x1080@60 13:1920x1080@60 14:1920x1080@50 15:1920x1080@30
16:1920x1080@30 17:1920x1080@25 18:1920x1080@24 19:1920x1080@24
20:1680x1050@60 21:1600x900@60 22:1280x1024@75 23:1280x1024@60
24:1280x800@60 25:1152x864@75 26:1280x720@60 27:1280x720@60 28:1280x720@60
29:1280x720@50 30:1024x768@75 31:1024x768@60 32:832x624@75 33:800x600@75
34:800x600@60 35:720x576@50 36:720x480@60 37:720x480@60 38:640x480@75
39:640x480@60 40:640x480@60 41:640x480@60 42:720x400@70
Geometry: 0,0 2560x1440
Scale: 1.5
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: Automatic
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
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