https://bugs.kde.org/show_bug.cgi?id=504142
--- Comment #1 from Piotr Dobrogost <bugs.kde....@p.dobrogost.net> ---
I enabled debug output from kwin with systemd drop-in file:
```
$ cat /home/piotr/.config/systemd/user/plasma-kwin_x11.service.d/override.conf
[Service]
Environment="QT_LOGGING_RULES=kwin_*.debug=true"
```
However after doing this I don't see any information that might help diagnose
the problem in the output of `journalctl --user` (below).
No warnings nor errors and then timeout:
`maj 13 14:38:47 demon systemd[1315]: plasma-kwin_x11.service: start operation
timed out. Terminating.`
```
maj 13 14:38:02 demon systemd[1315]: Starting plasma-kwin_x11.service - KDE
Window Manager...
maj 13 14:38:02 demon kwin_x11[619433]: kwin_platform_x11_standalone: Has
XInput support 2 . 2
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Extensions: shape: 0x "11"
composite: 0x "4" render: 0x "b" fixes: 0x "50" randr: 0x "14" sync: 0x
"31" damage: 0x "11"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_xkbcommon: XKB: created compose
table from locale en_DK.UTF-8 with path
/usr/share/X11/locale/en_US.UTF-8/Compose
maj 13 14:38:02 demon kwin_x11[619433]: kwin_decorations: Trying to load
decoration plugin:
"/usr/lib64/qt6/plugins/org.kde.kdecoration3/org.kde.breeze.so"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Attempting to load the
OpenGL scene
maj 13 14:38:02 demon kwin_x11[619433]: kwin_platform_x11_standalone: Choosing
GLXFBConfig 0xef X visual 0x2fe depth 24 RGBA 8:8:8:0 ZS 0:0 sRGB: 1
maj 13 14:38:02 demon kwin_x11[619433]: kwin_platform_x11_standalone: Global
share context format: QSurfaceFormat(version 4.6, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 0,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 0,
stencilBufferSize 0, samples -1, swapBehavior
QSurfaceFormat::DefaultSwapBehavior, swapInterval 0, colorSpace QColorSpace(),
profile QSurfaceFormat::CompatibilityProfile)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_platform_x11_standalone: Created
GLX context with attributes:
Version requested: true
Version: 3.1
Robust: false
Reset on video memory purge:
false
Forward compatible: false
Core profile: false
Compatibility profile: false
High priority: false
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 224 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 1 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 48 VGPRS: 12 Code Size: 3100 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 4 DivergentLoop: 0 (PS, W64)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: OpenGL compositing has been
successfully initialized
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "blendchanges"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 208 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 1 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 208 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 1 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 24 VGPRS: 20 Code Size: 316 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 0 DivergentLoop: 0 (PS, W64)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 24 VGPRS: 32 Code Size: 452 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 0 DivergentLoop: 0 (PS, W64)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 188 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "blur"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "colorpicker"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 24 VGPRS: 16 Code Size: 168 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 0 DivergentLoop: 0 (PS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 276 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 1 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 20 Code Size: 452 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 1 DivergentLoop: 0 (PS, W64)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "contrast"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "highlightwindow"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "kscreen"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "outputlocator"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "overview"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "screenedge"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "screenshot"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Effect is not supported:
"screentransform"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Effect is not supported:
"shakecursor"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "slide"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "slidingpopups"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "startupfeedback"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "systembell"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "tileseditor"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "windowview"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded plugin
effect: "zoom"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_platform_x11_standalone: Using
FBConfig 0x28e for visual 0x39c
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 224 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 1 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 8 Code Size: 288 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 1 DivergentLoop: 0 (PS, W64)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 8 VGPRS: 8 Code Size: 52 LDS: 0 Scratch: 0 Max Waves: 16 Spilled SGPRs:
0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0 HSPatchOuts: 0
ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1 InlineUniforms: 0
DivergentLoop: 0 (PS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 16 VGPRS: 16 Code Size: 132 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 16 VGPRS: 4 Code Size: 96 LDS: 0 Scratch: 0 Max Waves: 16 Spilled SGPRs:
0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0 HSPatchOuts: 0
ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1 InlineUniforms: 1
DivergentLoop: 0 (PS, W64)
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "dialogparent"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "fadingpopups"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "frozenapp"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "fullscreen"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "login"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "logout"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "sessionquit"
maj 13 14:38:02 demon kwin_x11[619433]: kwin_core: Successfully loaded scripted
effect: "windowaperture"
maj 13 14:38:33 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 32 VGPRS: 16 Code Size: 224 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 1 PSOutputs: 0
InlineUniforms: 0 DivergentLoop: 0 (VS, W32)
maj 13 14:38:33 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 40 VGPRS: 8 Code Size: 308 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 1 DivergentLoop: 0 (PS, W64)
maj 13 14:38:33 demon kwin_x11[619433]: kwin_scene_opengl: 0x1: Shader Stats:
SGPRS: 16 VGPRS: 4 Code Size: 144 LDS: 0 Scratch: 0 Max Waves: 16 Spilled
SGPRs: 0 Spilled VGPRs: 0 PrivMem VGPRs: 0 LSOutputs: 0 HSOutputs: 0
HSPatchOuts: 0 ESOutputs: 0 GSOutputs: 0 VSOutputs: 0 PSOutputs: 1
InlineUniforms: 1 DivergentLoop: 0 (PS, W64)
maj 13 14:38:47 demon systemd[1315]: plasma-kwin_x11.service: start operation
timed out. Terminating.
maj 13 14:38:47 demon kwin_x11[619433]: kwin_scene_opengl: Could not delete
framebuffer because no context is current
maj 13 14:38:47 demon systemd[1315]: plasma-kwin_x11.service: Main process
exited, code=exited, status=15/n/a
maj 13 14:38:47 demon systemd[1315]: plasma-kwin_x11.service: Failed with
result 'timeout'.
maj 13 14:38:47 demon systemd[1315]: Failed to start plasma-kwin_x11.service -
KDE Window Manager.
maj 13 14:38:47 demon systemd[1315]: plasma-kwin_x11.service: Consumed 362ms
CPU time, 85.8M memory peak.
maj 13 14:38:47 demon systemd[1315]: plasma-kwin_x11.service: Scheduled restart
job, restart counter is at 1.
```
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