https://bugs.kde.org/show_bug.cgi?id=410044
ne...@protonmail.com changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Status|REPORTED |CONFIRMED
--- Comment #2 from ne...@protonmail.com ---
I just encountered the exact same problem. Controlling the backlight from the
ACPI interface still works, but the brightness buttons have no effect, no osd
is present, and no brightness slider is present in the power management
settings.
SOFTWARE/OS VERSIONS
Operating System: NixOS 19.09
KDE Plasma Version: 5.16.5
KDE Frameworks Version: 5.61.0
Qt Version: 5.12.3
ADDITIONAL INFORMATION
% kscreen-doctor -o
Output: 66 eDP-1 enabled connected primary Panel Modes: 100:1400x900@60
101:1280x960@60 102:1440x810@120 103:1440x810@120 104:1368x768@60
105:1368x768@60 106:1280x800@120 107:1280x800@120 108:1280x800@60
109:1280x800@60 110:1280x720@120 111:1280x720@120 112:1280x720@60
113:1280x720@60 114:1024x768@120 115:1024x768@60 116:960x720@120
117:928x696@120 118:896x672@120 119:1024x576@120 120:1024x576@120
121:1024x576@60 122:1024x576@60 123:960x600@120 124:960x600@120 125:960x540@120
126:960x540@120 127:960x540@60 128:960x540@60 129:800x600@120 130:800x600@60
131:800x600@56 132:840x525@120 133:840x525@120 134:864x486@60 135:864x486@60
136:700x525@120 137:800x450@120 138:800x450@120 139:640x512@120 140:700x450@120
141:700x450@120 142:640x480@120 143:640x480@60 144:720x405@60 145:720x405@59
146:684x384@120 147:684x384@120 148:640x400@120 149:640x400@120 150:640x360@120
151:640x360@120 152:640x360@60 153:640x360@59 154:512x384@120 155:512x288@120
156:512x288@120 157:480x270@119 158:480x270@120 159:400x300@121 160:400x300@113
161:432x243@120 162:432x243@119 163:320x240@120 164:360x202@119 165:360x202@118
166:320x180@120 167:320x180@119 72:2560x1440@60! 73:2560x1440@120
74:2560x1440@120 75:2560x1440@60 76:2560x1440@60 77:1920x1440@60
78:1856x1392@60 79:1792x1344@60 80:2048x1152@120 81:2048x1152@120
82:2048x1152@60 83:2048x1152@60 84:1920x1200@60 85:1920x1200@60
86:1920x1080@120* 87:1920x1080@120 88:1920x1080@60 89:1920x1080@60
90:1600x1200@60 91:1680x1050@60 92:1680x1050@60 93:1400x1050@60 94:1600x900@120
95:1600x900@120 96:1600x900@60 97:1600x900@60 98:1280x1024@60 99:1400x900@60
Geometry: 0,0 1920x1080 Scale: 1 Rotation: 1 primary
Output: 67 DP-1 disabled disconnected DisplayPort Modes: Geometry: 0,0 0x0
Scale: 1 Rotation: 1
Output: 68 HDMI-1 disabled disconnected HDMI Modes: Geometry: 0,0 0x0 Scale: 1
Rotation: 1
Output: 69 DP-2 disabled disconnected DisplayPort Modes: Geometry: 0,0 0x0
Scale: 1 Rotation: 1
Output: 70 HDMI-2 disabled disconnected HDMI Modes: Geometry: 0,0 0x0 Scale: 1
Rotation: 1
% kscreen-doctor -i
Environment:
* KSCREEN_BACKEND : [not set]
* KSCREEN_BACKEND_INPROCESS : [not set]
* KSCREEN_LOGGING : [not set]
Logging to : [logging disabled]
Preferred KScreen backend : KSC_XRandR.so
Available KScreen backends:
* KSC_Fake.so:
/nix/store/nvh73b08mq4qfz5dyl8lf4z9jh3shl8v-libkscreen-5.16.5/lib/qt-5.12.3/plugins/kf5/kscreen/KSC_Fake.so
* KSC_KWayland.so:
/nix/store/nvh73b08mq4qfz5dyl8lf4z9jh3shl8v-libkscreen-5.16.5/lib/qt-5.12.3/plugins/kf5/kscreen/KSC_KWayland.so
* KSC_QScreen.so:
/nix/store/nvh73b08mq4qfz5dyl8lf4z9jh3shl8v-libkscreen-5.16.5/lib/qt-5.12.3/plugins/kf5/kscreen/KSC_QScreen.so
* KSC_XRandR.so:
/nix/store/nvh73b08mq4qfz5dyl8lf4z9jh3shl8v-libkscreen-5.16.5/lib/qt-5.12.3/plugins/kf5/kscreen/KSC_XRandR.so
* KSC_XRandR11.so:
/nix/store/nvh73b08mq4qfz5dyl8lf4z9jh3shl8v-libkscreen-5.16.5/lib/qt-5.12.3/plugins/kf5/kscreen/KSC_XRandR11.so
I attached the output of 'kscreen-doctor -j'.
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