Bug 493135

Summary: Laptop screen remains turned off but KDE is otherwise functional after closing and reopening laptop lid, the screen turns back on when switching to other virtual consoles and back off when switching to kde's virtual console
Product: [Plasma] plasmashell Reporter: green
Component: Power management & brightnessAssignee: Plasma Bugs List <plasma-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: natalie_clarius, nate
Priority: NOR    
Version First Reported In: 6.2.4   
Target Milestone: 1.0   
Platform: Other   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=506259
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Bug Depends on:    
Bug Blocks: 506893    

Description green 2024-09-15 03:11:19 UTC 
SUMMARY

I'm using a fairly new system with a Intel(R) Core(TM) Ultra 9 185H which has embedded intel arc graphics. Using plasma 6 on wayland.

After putting my laptop to sleep, then opening the lid, the screen turns on (i.e. can see some kernel messages about resuming from sleep) but then when KDE resumes the laptop screen gets turned off (remains black without the backlight turned on). However kde is still running and functional, I can open a terminal using krunner (without being able to see anything) type "touch blah" and then verify that the file is created. This problem occurs whether "lock screen on sleep" is enabled or not.

I can switch to the sddm display via ctrl+alt+f2 and then the screen turns on, but switching back to kde with ctrl+alt+f1 turns off the screen again. The only way to get kde back with a working screen is to switch to a shell virtual terminal via ctrl+alt+f3 and run `systemctl restart sddm`, then login again.

Suspend/resume works fine under gnome and xfce, only plasma 6 on wayland is affected. I didn't try plasma 6 on X11.

I turned off systemd's handling off the lid open/close events, so only kde has control of this.

STEPS TO REPRODUCE
1. Have intel arc graphics
2. Close laptop lid to sleep
3. Open laptop lid

OBSERVED RESULT

KDE is functional but the screen remains turned off. Switching to another virtual terminal turns the screen back on, but switching back to KDE's virtual terminal always turns it back off.

EXPECTED RESULT

KDE should not turn the screen off after wake.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: archlinux
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.5.0 
Qt Version: 6.7.2
Comment 1 green 2024-09-15 03:14:06 UTC 
Output of `qdbus org.kde.KWin /KWin supportInformation`:

KWin Support Information:
The following information should be used when requesting support on e.g. https://discuss.kde.org.
It provides information about the currently running instance, which options are used,
what OpenGL driver and which effects are running.
Please post the information provided underneath this introductory text to a paste bin service
like https://paste.kde.org instead of pasting into support threads.

==========================

Version
=======
KWin version: 6.1.5
Qt Version: 6.7.2
Qt compile version: 6.7.2
XCB compile version: 1.17.0

Operation Mode: Xwayland

Build Options
=============
KWIN_BUILD_DECORATIONS: yes
KWIN_BUILD_TABBOX: yes
KWIN_BUILD_ACTIVITIES: yes
HAVE_X11_XCB: yes
HAVE_GLX: yes

X11
===
Vendor: The X.Org Foundation
Vendor Release: 12401002
Protocol Version/Revision: 11/0
SHAPE: yes; Version: 0x11
RANDR: yes; Version: 0x14
DAMAGE: yes; Version: 0x11
Composite: yes; Version: 0x4
RENDER: yes; Version: 0xb
XFIXES: yes; Version: 0x50
SYNC: yes; Version: 0x31
GLX: yes; Version: 0x0

Decoration
==========
Plugin: org.kde.breeze
Theme: Breeze
Plugin recommends border size: None
onAllDesktopsAvailable: true
alphaChannelSupported: true
closeOnDoubleClickOnMenu: false
decorationButtonsLeft: 0, 2
decorationButtonsRight: 6, 3, 4, 5
borderSize: 0
gridUnit: 10
font: Noto Sans,10,-1,0,400,0,0,0,0,0,0,0,0,0,0,1
smallSpacing: 2
largeSpacing: 10

Output backend
==============
Name: DRM
Atomic Mode Setting on GPU 0: true
Atomic Mode Setting on GPU 1: true

Cursor
======
themeName: breeze_cursors
themeSize: 24

Options
=======
focusPolicy: ClickToFocus
xwaylandCrashPolicy: 1
xwaylandMaxCrashCount: 3
nextFocusPrefersMouse: false
clickRaise: true
autoRaise: false
autoRaiseInterval: 0
delayFocusInterval: 0
shadeHover: false
shadeHoverInterval: 250
separateScreenFocus: false
placement: 5
activationDesktopPolicy: SwitchToOtherDesktop
focusPolicyIsReasonable: true
borderSnapZone: 10
windowSnapZone: 10
centerSnapZone: 0
snapOnlyWhenOverlapping: false
edgeBarrier: 100
cornerBarrier: 1
rollOverDesktops: true
focusStealingPreventionLevel: 1
operationTitlebarDblClick: 5000
operationMaxButtonLeftClick: 5000
operationMaxButtonMiddleClick: 5015
operationMaxButtonRightClick: 5014
commandActiveTitlebar1: MouseRaise
commandActiveTitlebar2: MouseNothing
commandActiveTitlebar3: MouseOperationsMenu
commandInactiveTitlebar1: MouseActivateAndRaise
commandInactiveTitlebar2: MouseNothing
commandInactiveTitlebar3: MouseOperationsMenu
commandWindow1: MouseActivateRaiseAndPassClick
commandWindow2: MouseActivateAndPassClick
commandWindow3: MouseActivateAndPassClick
commandWindowWheel: MouseNothing
commandAll1: MouseUnrestrictedMove
commandAll2: MouseToggleRaiseAndLower
commandAll3: MouseUnrestrictedResize
keyCmdAllModKey: 16777250
condensedTitle: false
electricBorderMaximize: true
electricBorderTiling: true
electricBorderCornerRatio: 0.25
borderlessMaximizedWindows: false
killPingTimeout: 5000
hideUtilityWindowsForInactive: true
compositingMode: 1
useCompositing: true
hiddenPreviews: 1
glSmoothScale: 2
glStrictBinding: true
glStrictBindingFollowsDriver: true
glPreferBufferSwap: AutoSwapStrategy
glPlatformInterface: 2
windowsBlockCompositing: true
allowTearing: true

Screen Edges
============
desktopSwitching: false
desktopSwitchingMovingClients: false
cursorPushBackDistance: 1x1
timeThreshold: 150
reActivateThreshold: 350
actionTopLeft: 0
actionTop: 0
actionTopRight: 0
actionRight: 0
actionBottomRight: 0
actionBottom: 0
actionBottomLeft: 0
actionLeft: 0

Screens
=======
Number of Screens: 2

Screen 0:
---------
Name: eDP-1
Enabled: 1
Geometry: 0,0,1707x1067
Scale: 1.5
Refresh Rate: 165019
Adaptive Sync: automatic
Screen 1:
---------
Name: Unknown-1
Enabled: 0

Compositing
===========
Compositing is active
Compositing Type: OpenGL
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) Arc(tm) Graphics (MTL)
OpenGL version string: 4.6 (Core Profile) Mesa 24.2.2-arch1.1
OpenGL platform interface: EGL
OpenGL shading language version string: 4.60
Driver: Intel
GPU class: Unknown
OpenGL version: 4.6
GLSL version: 4.60
Mesa version: 24.2.2
X server version: 1.24.1
Linux kernel version: 6.10.10
Direct rendering: Requires strict binding: no
Virtual Machine:  no
OpenGL 2 Shaders are used

Loaded Effects:
---------------
trackmouse
shakecursor
screenshot
outputlocator
colorpicker
zoom
screenedge
blur
contrast
logout
sessionquit
login
slidingpopups
windowaperture
frozenapp
fadingpopups
scale
squash
fullscreen
maximize
morphingpopups
dialogparent
windowview
tileseditor
overview
highlightwindow
blendchanges
startupfeedback
screentransform
kscreen

Currently Active Effects:
-------------------------
blur
contrast

Effect Settings:
----------------
trackmouse:
modifiers: 

shakecursor:

screenshot:

outputlocator:

colorpicker:

zoom:
zoomFactor: 1.2
mousePointer: 0
mouseTracking: 0
focusTrackingEnabled: false
textCaretTrackingEnabled: false
focusDelay: 350
moveFactor: 20
targetZoom: 1

screenedge:

blur:

contrast:

logout:
pluginId: logout
isActiveFullScreenEffect: false

sessionquit:
pluginId: sessionquit
isActiveFullScreenEffect: false

login:
pluginId: login
isActiveFullScreenEffect: false

slidingpopups:
slideInDuration: 200
slideOutDuration: 200

windowaperture:
pluginId: windowaperture
isActiveFullScreenEffect: false

frozenapp:
pluginId: frozenapp
isActiveFullScreenEffect: false

fadingpopups:
pluginId: fadingpopups
isActiveFullScreenEffect: false

scale:
pluginId: scale
isActiveFullScreenEffect: false

squash:
pluginId: squash
isActiveFullScreenEffect: false

fullscreen:
pluginId: fullscreen
isActiveFullScreenEffect: false

maximize:
pluginId: maximize
isActiveFullScreenEffect: false

morphingpopups:
pluginId: morphingpopups
isActiveFullScreenEffect: false

dialogparent:
pluginId: dialogparent
isActiveFullScreenEffect: false

windowview:
activeView: 
delegate: 
animationDuration: 300
ignoreMinimized: false
mode: 
partialActivationFactor: 0
gestureInProgress: false
searchText: 
selectedIds: 

tileseditor:
activeView: 
delegate: 
animationDuration: 200

overview:
activeView: 
delegate: 
animationDuration: 300
ignoreMinimized: false
filterWindows: true
organizedGrid: true
overviewPartialActivationFactor: 0
overviewGestureInProgress: false
transitionPartialActivationFactor: 0
transitionGestureInProgress: false
gridPartialActivationFactor: 0
gridGestureInProgress: false
desktopOffset: 
searchText: 

highlightwindow:

blendchanges:

startupfeedback:
type: 1

screentransform:

kscreen:


Loaded Plugins:
---------------
BounceKeysPlugin
StickyKeysPlugin
buttonsrebind
eis
krunnerintegration
nightlight
screencast

Available Plugins:
------------------
BounceKeysPlugin
StickyKeysPlugin
buttonsrebind
eis
krunnerintegration
nightlight
screencast
Comment 2 green 2024-09-15 03:24:36 UTC 
I tried changing my settings for "on laptop lid close" settings from "sleep" to "turn off screen" and the screen would turn off and on as expected. So this problem only affects plasma after resuming from sleep.
Comment 3 green 2024-09-15 03:43:37 UTC 
After further experimentation I've found that KDE is often unable to turn the laptop screen back on after opening the laptop lid even when the "on laptop lid closed" setting is set to "turn off screen". However if I set a shortcut to "Turn off screen" and then interact with the computer the laptop screen is turned on every time. So this problem is specific to closing/opening the laptop lid.
Comment 4 Nate Graham 2025-06-17 17:31:49 UTC 
So when you wake the laptop by opening the lid, the screen is black but you can open KRunner with Alt+Space and it appears on the otherwise black screen. Is that accurate?
Comment 5 Nate Graham 2025-06-17 17:31:57 UTC 
.
Comment 6 Bug Janitor Service 2025-07-02 03:47:28 UTC 
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 7 Bug Janitor Service 2025-07-17 03:47:36 UTC 
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.