https://bugs.kde.org/show_bug.cgi?id=495652
Bug ID: 495652
Summary: Unable to modify displays since 6.2
Classification: Plasma
Product: KScreen
Version: 6.2.2
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: kscreen-bugs-n...@kde.org
Reporter: kmcwilliampub...@gmail.com
Target Milestone: ---
SUMMARY
In both the KCM & with kscreen-doctor I can no longer enable/disable monitors
at will; I think it began with 6.2.
kscreen-doctor fails silently. Trying to configure the displays in the KCM
causes the changes to appear reverted immediately after clicking Apply, and it
does not seem like the displays tried to change configuration.
I have 3 displays connected; 2 monitors and 1 TV. One monitor uses DP, other
other displays both use HDMI.
It only happens sometimes, but I can't seem to find a pattern. When I am unable
to switch to the TV the only thing that works is to unplug the power from one
of the monitors, then it suddenly works.
STEPS TO REPRODUCE
1. Have 2 monitors enabled, TV disabled.
2. Disable both monitors and enable the TV.
OBSERVED RESULT
Changes revert/fail silently.
EXPECTED RESULT
Monitors' output should be disabled, output to TV should be enabled.
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 40
KDE Plasma Version: 6.2.2
KDE Frameworks Version: 6.7.0
Qt Version: 6.7.2
Kernel Version: 6.11.4-201.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 3700X 8-Core Processor
Memory: 47.0 GiB of RAM
Graphics Processor: AMD Radeon RX 580 Series
ADDITIONAL INFORMATION
```
❯ kscreen-doctor --outputs
[ 16:38:13.617 ] kscreen.kwayland: KScreen::WaylandConfig::addOutput 195:
adding output 63
[ 16:38:13.617 ] kscreen.kwayland: KScreen::WaylandConfig::addOutput 195:
adding output 64
[ 16:38:13.618 ] kscreen.kwayland: KScreen::WaylandConfig::addOutput 195:
adding output 65
[ 16:38:13.618 ] kscreen.kwayland: KScreen::WaylandBackend::WaylandBackend 31:
Loading Wayland backend.
Output: 1 DP-1
enabled
connected
priority 1
DisplayPort
Modes: 1:3840x2160@60*! 2:3840x2160@60 3:3840x2160@60
4:3840x2160@50 5:3840x2160@30 6:3840x2160@30 7:3840x2160@25 8:3840x2160@24
9:3840x2160@24 10:2560x1440@60 11:1920x1200@60 12:1920x1080@60
13:1920x1080@60 14:1920x1080@60 15:1920x1080@50 16:1920x1080@24
17:1920x1080@24 18:1920x1080@24 19:1920x1080@24 20:1600x1200@60
21:1680x1050@60 22:1280x1024@60 23:1440x900@60 24:1280x960@60
25:1280x800@60 26:1280x720@60 27:1280x720@60 28:1280x720@60 29:1280x720@50
30:1440x576@50 31:1440x576@50 32:1024x768@60 33:1440x480@60 34:1440x480@60
35:1440x480@60 36:1440x480@60 37:800x600@60 38:800x600@56 39:720x576@50
40:720x480@60 41:720x480@60 42:720x480@60 43:720x480@60 44:640x480@60
45:640x480@60 46:640x480@60 47:1600x1200@60 48:1280x1024@60 49:1024x768@60
50:2560x1600@60 51:1920x1200@60 52:3840x2160@60 53:3200x1800@60
54:2880x1620@60 55:2560x1440@60 56:1920x1080@60 57:1600x900@60
58:1368x768@60 59:1280x720@60
Geometry: 0,0 2560x1440
Scale: 1.5
Rotation: 1
Overscan: 0
Vrr: Automatic
RgbRange: unknown
HDR: disabled
Wide Color Gamut: disabled
ICC profile: none
Color profile source: sRGB
Brightness control: supported, set to 85%
Output: 2 HDMI-A-1
disabled
connected
priority 0
HDMI
Modes: 60:3840x2160@60*! 61:4096x2160@60 62:4096x2160@60
63:4096x2160@30 64:4096x2160@30 65:4096x2160@24 66:4096x2160@24
67:3840x2160@60 68:3840x2160@60 69:3840x2160@30 70:3840x2160@30
71:3840x2160@30 72:3840x2160@24 73:3840x2160@24 74:1920x1200@60
75:1920x1080@60 76:1920x1080@60 77:1920x1080@60 78:1920x1080@30
79:1920x1080@30 80:1920x1080@24 81:1920x1080@24 82:1600x1200@60
83:1680x1050@60 84:1280x1024@75 85:1280x1024@60 86:1440x900@60
87:1280x960@60 88:1280x800@60 89:1152x864@75 90:1280x720@60 91:1280x720@60
92:1280x720@60 93:1280x720@30 94:1280x720@30 95:1280x720@24 96:1280x720@24
97:1024x768@75 98:1024x768@70 99:1024x768@60 100:800x600@75 101:800x600@72
102:800x600@60 103:720x480@60 104:720x480@60 105:640x480@75 106:640x480@73
107:640x480@60 108:640x480@60 109:640x480@60 110:720x400@70
111:1600x1200@60 112:1280x1024@60 113:1024x768@60 114:2560x1600@60
115:1920x1200@60 116:1280x800@60 117:3840x2160@60 118:3200x1800@60
119:2880x1620@60 120:2560x1440@60 121:1920x1080@60 122:1600x900@60
123:1368x768@60 124:1280x720@60
Geometry: 0,0 2560x1440
Scale: 1.5
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: disabled
Wide Color Gamut: disabled
ICC profile: none
Color profile source: sRGB
Brightness control: supported, set to 100%
Output: 3 HDMI-A-2
enabled
connected
priority 2
HDMI
Modes: 125:1920x1080@60*! 126:1920x1080@60 127:1920x1080@60
128:1920x1080@50 129:1680x1050@60 130:1600x900@60 131:1280x1024@75
132:1280x1024@60 133:1440x900@60 134:1280x800@60 135:1152x864@75
136:1280x720@60 137:1280x720@60 138:1280x720@60 139:1280x720@50
140:1280x720@50 141:1024x768@75 142:1024x768@70 143:1024x768@60
144:832x624@75 145:800x600@75 146:800x600@72 147:800x600@60 148:800x600@56
149:720x576@50 150:720x576@50 151:720x480@60 152:720x480@60 153:720x480@60
154:720x480@60 155:640x480@75 156:640x480@73 157:640x480@67 158:640x480@60
159:640x480@60 160:720x400@70 161:1280x1024@60 162:1024x768@60
163:1280x800@60 164:1920x1080@60 165:1600x900@60 166:1368x768@60
167:1280x720@60
Geometry: 2560,348 1920x1080
Scale: 1
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
Color profile source: sRGB
Brightness control: supported, set to 85%
```
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