https://bugs.kde.org/show_bug.cgi?id=462214
Bug ID: 462214
Summary: "kwin_wayland_drm: Failed to find a working setup for
new outputs!" "Atomic modeset test failed! Invalid
argument" with external display (Qualcomm GPU)
Classification: Plasma
Product: kwin
Version: 5.26.3
Platform: Debian testing
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: platform-drm
Assignee: kwin-bugs-n...@kde.org
Reporter: leon...@lausen.nl
Target Milestone: ---
Created attachment 154000
--> https://bugs.kde.org/attachment.cgi?id=154000&action=edit
startplasma-wayland debug log
KWin Wayland session is currently broken on ARM devices such as Acer Spin 513
Chromebook with Qualcomm Snapdragon 7c [1] if an external display is used.
There are no issues with using the KWin X11 session in this setting with
external display, nor any issues with the KWin Wayland session as long as no
external display is connected.
STEPS TO REPRODUCE
1. Obtain a laptop with Qualcomm Snapdragon chipset
2. From a tty run `export QT_LOGGING_RULES="kwin_*.debug=true";
startplasma-wayland > ~/startplasma-wayland.log 2>&1 `
3. Wait a minute and `killall startplasma-wayland` from the serial console (as
kwin took over the tty and can't be interrupted)
OBSERVED RESULT
The tty continues to be displayed and kwin fails to start a graphical session
and hangs indefinitely.
EXPECTED RESULT
kwin successfully starts a plasma session.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Linux 6.0.8
KDE Plasma Version: 5.26.3
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
ADDITIONAL INFORMATION
Full startplasma-wayland.log attached. Also attached is
startplasma-wayland-newuser.log which contains the debug log upon reproducing
with a fresh user (sudo adduser test). Both logs are substantially similar, but
have small differences in the debug messages regarding Drm objects.
Relevant excerpt:
No backend specified, automatically choosing drm
kwin_wayland_drm: Skipping KMS incapable drm device node at "/dev/dri/card0"
kwin_wayland_drm: drmModeAddFB2WithModifiers is supported on GPU
"/dev/dri/card1"
kwin_wayland_drm: Using Atomic Mode Setting on gpu "/dev/dri/card1"
kwin_wayland_drm: Number of planes on GPU "/dev/dri/card1" : 4
kwin_wayland_drm: Plane 41 has properties "type"="Primary", "SRC_X"=0,
"SRC_Y"=0, "SRC_W"=125829120, "SRC_H"=70778880, "CRTC_X"=0, "CRTC_Y"=0,
"CRTC_W"=1920, "CRTC_H"=1080, "FB_ID"=68, "CRTC_ID"=65, "rotation"=invalid
value: 1, "IN_FORMATS"=42
kwin_wayland_drm: Plane 47 has properties "type"="Primary", "SRC_X"=0,
"SRC_Y"=0, "SRC_W"=125829120, "SRC_H"=70778880, "CRTC_X"=0, "CRTC_Y"=0,
"CRTC_W"=1920, "CRTC_H"=1080, "FB_ID"=68, "CRTC_ID"=66, "rotation"=invalid
value: 1, "IN_FORMATS"=48
kwin_wayland_drm: Plane 53 has properties "type"="Cursor", "SRC_X"=0,
"SRC_Y"=0, "SRC_W"=0, "SRC_H"=0, "CRTC_X"=0, "CRTC_Y"=0, "CRTC_W"=0,
"CRTC_H"=0, "FB_ID"=0, "CRTC_ID"=0, "rotation"=invalid value: 1,
"IN_FORMATS"=54
kwin_wayland_drm: Plane 59 has properties "type"="Cursor", "SRC_X"=0,
"SRC_Y"=0, "SRC_W"=0, "SRC_H"=0, "CRTC_X"=0, "CRTC_Y"=0, "CRTC_W"=0,
"CRTC_H"=0, "FB_ID"=0, "CRTC_ID"=0, "rotation"=invalid value: 1,
"IN_FORMATS"=60
kwin_wayland_drm: Crtc 65 has properties "MODE_ID"=69, "ACTIVE"=1,
"VRR_ENABLED"=0, "GAMMA_LUT" not found, "GAMMA_LUT_SIZE" not found
kwin_wayland_drm: Crtc 66 has properties "MODE_ID"=71, "ACTIVE"=1,
"VRR_ENABLED"=0, "GAMMA_LUT" not found, "GAMMA_LUT_SIZE" not found
[...]
kwin_core: KGlobalAcceld inited
kwin_core: Attempting to load the OpenGL scene
kwin_scene_opengl: Egl Initialize succeeded
kwin_scene_opengl: EGL version: 1 . 5
kwin_scene_opengl: Created EGL context with attributes:
Version requested: true
Version: 3.1
Robust: true
Reset on video memory purge: false
Forward compatible: false
Core profile: false
Compatibility profile: false
High priority: true
kwin_scene_opengl: Created EGL context with attributes:
Version requested: true
Version: 3.1
Robust: true
Reset on video memory purge: false
Forward compatible: false
Core profile: false
Compatibility profile: false
High priority: true
OpenGL vendor string: freedreno
OpenGL renderer string: FD618
OpenGL version string: 3.3 (Core Profile) Mesa 22.2.4
OpenGL shading language version string: 3.30
Driver: Unknown
GPU class: Unknown
OpenGL version: 3.3
GLSL version: 3.30
Mesa version: 22.2.4
Linux kernel version: 6.0.8
Requires strict binding: no
GLSL shaders: yes
Texture NPOT support: yes
Virtual Machine: no
kwin_scene_opengl: Filter multi-plane format 961959257
kwin_scene_opengl: Filter multi-plane format 825316697
kwin_scene_opengl: Filter multi-plane format 842093913
kwin_scene_opengl: Filter multi-plane format 909202777
kwin_scene_opengl: Filter multi-plane format 875713881
kwin_scene_opengl: Filter multi-plane format 961893977
kwin_scene_opengl: Filter multi-plane format 825316953
kwin_scene_opengl: Filter multi-plane format 842094169
kwin_scene_opengl: Filter multi-plane format 909203033
kwin_scene_opengl: Filter multi-plane format 875714137
kwin_scene_opengl: Filter multi-plane format 842094158
kwin_scene_opengl: Filter multi-plane format 909203022
kwin_scene_opengl: EGL driver advertises 30 supported dmabuf formats with
modifiers
kwin_core: OpenGL compositing has been successfully initialized
kwin_wayland_drm: Connector 32 has properties "CRTC_ID"=65, "non-desktop"=0,
"DPMS"=0, "EDID"=67, "overscan" not found, "vrr_capable" not found, "underscan"
not found, "underscan vborder" not found, "underscan hborder" not found,
"Broadcast RGB" not found, "max bpc" not found, "link-status"="Good"
kwin_wayland_drm: Connector 34 has properties "CRTC_ID"=66, "non-desktop"=0,
"DPMS"=0, "EDID"=72, "overscan" not found, "vrr_capable" not found, "underscan"
not found, "underscan vborder" not found, "underscan hborder" not found,
"Broadcast RGB" not found, "max bpc" not found, "link-status"="Good"
kwin_wayland_drm: New output on GPU /dev/dri/card1: eDP-1-unknown
kwin_wayland_drm: New output on GPU /dev/dri/card1: DELL U2722DE/7R9MR83
kwin_wayland_drm: Atomic modeset test failed! Invalid argument
kwin_wayland_drm: Drm objects:
kwin_wayland_drm: "connector" 32
kwin_wayland_drm: "CRTC_ID": 65
kwin_wayland_drm: "non-desktop": 0
kwin_wayland_drm: "DPMS": 0
kwin_wayland_drm: "EDID": 67
kwin_wayland_drm: "link-status": 0
kwin_wayland_drm: "crtc" 65
kwin_wayland_drm: "MODE_ID": 69->74
kwin_wayland_drm: "ACTIVE": 1
kwin_wayland_drm: "VRR_ENABLED": 0
kwin_wayland_drm: "plane" 47
kwin_wayland_drm: "type": 1
kwin_wayland_drm: "SRC_X": 0
kwin_wayland_drm: "SRC_Y": 0
kwin_wayland_drm: "SRC_W": 1920
kwin_wayland_drm: "SRC_H": 1080
kwin_wayland_drm: "CRTC_X": 0
kwin_wayland_drm: "CRTC_Y": 0
kwin_wayland_drm: "CRTC_W": 1920
kwin_wayland_drm: "CRTC_H": 1080
kwin_wayland_drm: "FB_ID": 68->73
kwin_wayland_drm: "CRTC_ID": 66->65
kwin_wayland_drm: "rotation": 1
kwin_wayland_drm: "IN_FORMATS": 48
kwin_wayland_drm: "plane" 53
kwin_wayland_drm: "type": 2
kwin_wayland_drm: "SRC_X": 0
kwin_wayland_drm: "SRC_Y": 0
kwin_wayland_drm: "SRC_W": 0->64
kwin_wayland_drm: "SRC_H": 0->64
kwin_wayland_drm: "CRTC_X": 0
kwin_wayland_drm: "CRTC_Y": 0
kwin_wayland_drm: "CRTC_W": 0->64
kwin_wayland_drm: "CRTC_H": 0->64
kwin_wayland_drm: "FB_ID": 0
kwin_wayland_drm: "CRTC_ID": 0
kwin_wayland_drm: "rotation": 1
kwin_wayland_drm: "IN_FORMATS": 54
kwin_wayland_drm: Drm objects:
[...]
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