1952431 – startplasma-wayland hangs when run in basic video mode (nomodeset; VESA (BIOS) / FBDEV (UEFI) )

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Bug 1952431 - startplasma-wayland hangs when run in basic video mode (nomodeset; VESA (BIOS) / FBDEV (UEFI) )

Summary: startplasma-wayland hangs when run in basic video mode (nomodeset; VESA (BIOS...

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Fedora
Classification:	Fedora
Component:	kwin
Sub Component:
Version:	34
Hardware:	Unspecified
OS:	Unspecified
Priority:	unspecified
Severity:	unspecified
Target Milestone:	---
Assignee:	Daniel Vrátil
QA Contact:	Fedora Extras Quality Assurance
Docs Contact:
URL:
Whiteboard:	AcceptedBlocker
Depends On:
Blocks:	F34FinalBlocker
TreeView+	depends on / blocked

Reported:	2021-04-22 09:37 UTC by František Zatloukal
Modified:	2021-04-23 21:03 UTC (History)
CC List:	18 users (show)
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:	2021-04-23 21:03:55 UTC
Type:	Bug
Embargoed:
Dependent Products:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
KDE Software Compilation	436053	0	NOR	UNCONFIRMED	Plasma Wayland hangs when booting in basic graphics mode	2021-04-22 17:59:36 UTC

Description František Zatloukal 2021-04-22 09:37:46 UTC

Description of problem:
sddm gets stuck while trying to load under basic video driver (nomodeset kernel arg can be used to test this).
Both on BIOS ( VESA ) and UEFI ( FBDEV ) .

Version-Release number of selected component (if applicable):
sddm-0.19.0-10.fc34
xorg-x11-server-1.20.11-1.fc34 (Workstation uses xorg sessions while in basic video, not sure if sddm knows it needs to switch in such scenarios)

How reproducible:
Always (RX 580/amdgpu)

Steps to Reproduce:
1. Boot up Fedora 34 KDE Spin in basic video mode

Actual results:
Booting gets stuck right when sddm is about to load.

Expected results:
sddm should work in basic video mode.

Additional info:

Comment 1 Fedora Blocker Bugs Application 2021-04-22 09:39:15 UTC

Proposed as a Blocker for 34-final by Fedora user frantisekz using the blocker tracking app because:

 The generic video driver option ('basic graphics mode' - as described in the Basic criteria) on all release-blocking installer and live images must function as intended (launching the installer or desktop and attempting to use a generic driver), and there must be no bugs that clearly prevent the installer or desktop from being reached in this configuration on all systems or on wide classes of hardware.

Comment 2 Kamil Páral 2021-04-22 10:33:43 UTC

I can confirm this (BIOS & UEFI) on my Z87 motherboard (Haswell CPU) and Radeon 580.

Comment 3 Kamil Páral 2021-04-22 10:39:45 UTC

I can also confirm this on my Lenovo Thinkpad T480s (tested just UEFI). All of this is with F34 KDE Live RC1-1.

Comment 4 Kamil Páral 2021-04-22 10:43:09 UTC

Also broken on Lenovo Thinkpad T450s (tested just UEFI). My current guess is that this is a generic issue.

Comment 5 Lukas Ruzicka 2021-04-22 11:03:16 UTC

My Lenovo Thinkpad T460s (BIOS) will not even enter Anaconda to install the system.

Comment 6 Lukas Ruzicka 2021-04-22 11:18:57 UTC

I would like to explain my previous comment. For some reason I had been expecting to reach Anaconda and did not realize that I had been looking for the Live KDE session. I never reached that session. I even did not see the boot messages. On EFI, I saw the messages but the system got stalled and I never reached the KDE session either.

Comment 7 Neal Gompa 2021-04-22 15:03:04 UTC

SDDM is still X11, it hands off to Wayland for Plasma. This part has not changed from previous Fedora releases.

Comment 8 sumantro 2021-04-22 15:22:39 UTC

I can confirm on Thinkpad T580 (UEFI) with F34 KDE Live RC1.1, I am able to reproduce this issue.

Comment 9 Neal Gompa 2021-04-22 15:40:35 UTC

Confirmed the issue. It's not SDDM, it's happening at kwin. Switching components.

Reproducer incoming...

Comment 10 Adam Williamson 2021-04-22 16:55:20 UTC

+4 in https://pagure.io/fedora-qa/blocker-review/issue/369 , marking accepted.

Comment 11 Adam Williamson 2021-04-22 16:56:07 UTC

Perhaps the problem here is that it *shouldn't* hand off to Wayland? IIRC when we boot Workstation in 'basic graphics' mode, we get X?

Comment 12 Neal Gompa 2021-04-22 16:57:05 UTC

(In reply to Adam Williamson from comment #11)
> Perhaps the problem here is that it *shouldn't* hand off to Wayland? IIRC
> when we boot Workstation in 'basic graphics' mode, we get X?

Yeah, that's probably what should be happening here. An upstream bug and poking some people is probably appropriate here.

Comment 13 Neal Gompa 2021-04-22 17:20:28 UTC

Actually, "startkde"/"startplasma-wayland" are part of plasma-workspace, switching to that component...

Comment 14 Neal Gompa 2021-04-22 17:51:13 UTC

Actually, it *is* kwin that is hanging, as the process tree shows startplasma-wayland spawning kwin and it getting stuck there.

Comment 15 Neal Gompa 2021-04-22 17:58:53 UTC

(In reply to Neal Gompa from comment #9)
> Confirmed the issue. It's not SDDM, it's happening at kwin. Switching
> components.
> 
> Reproducer incoming...

Reproducer:

1. Install Fedora KDE
2. Boot with "nomodeset" kernel parameter
3. Switch to VT without sddm (so you can see what happens)
4. /etc/sddm/wayland-session /usr/libexec/plasma-dbus-run-session-if-needed /usr/bin/startplasma-wayland > output.log 2>&1

The output I get from it is the following:

Skipping syncing of environment variable  "BASH_FUNC_which%%" as name contains unsupported characters
Skipping syncing of environment variable  "BASH_FUNC_which%%" as name contains unsupported characters
No backend specified through command line argument, trying auto resolution
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
kwin_wayland_drm: Did not find a GPU

Comment 16 Neal Gompa 2021-04-22 17:59:39 UTC

Filed upstream KDE bug: https://bugs.kde.org/show_bug.cgi?id=436053

Comment 17 Neal Gompa 2021-04-22 18:02:16 UTC

When I add "--framebuffer" to startplasma-wayland, I get the following output instead:

Skipping syncing of environment variable  "BASH_FUNC_which%%" as name contains unsupported characters
Skipping syncing of environment variable  "BASH_FUNC_which%%" as name contains unsupported characters
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5079:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5081:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5083:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5087:47: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5089:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5097:48: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5101:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5103:46: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5107:45: this compose sequence is a duplicate of another; skipping line
kwin_xkbcommon: XKB: /usr/share/X11/locale/en_US.UTF-8/Compose:5110:46: this compose sequence is a duplicate of another; skipping line
terminate called after throwing an instance of 'std::out_of_range'
  what():  vector::_M_range_check: __n (which is 0) >= this->size() (which is 0)
Compositor crashed, respawning
Launching kwin
Launching kwin
Launching kwin
Launching kwin
Launching kwin
Launching kwin
Launching kwin
Launching kwin
Launching kwin
Launching kwin
startplasmacompositor: Shutting down...
startplasmacompositor: Done.

Comment 18 Neal Gompa 2021-04-22 18:23:26 UTC

This still happens even with the Plasma 5.21.4 update in updates-testing...

Comment 19 Neal Gompa 2021-04-22 21:35:54 UTC

(In reply to Neal Gompa from comment #12)
> (In reply to Adam Williamson from comment #11)
> > Perhaps the problem here is that it *shouldn't* hand off to Wayland? IIRC
> > when we boot Workstation in 'basic graphics' mode, we get X?
> 
> Yeah, that's probably what should be happening here. An upstream bug and
> poking some people is probably appropriate here.

I've submitted a scratch build of SDDM to try to mitigate this case: https://koji.fedoraproject.org/koji/taskinfo?taskID=66508218

Comment 20 Fedora Update System 2021-04-22 22:14:03 UTC

FEDORA-2021-b47f595533 has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-b47f595533

Comment 21 Ben Cotton 2021-04-23 01:02:59 UTC

Using an openQA build[1] that contains FEDORA-2021-b47f595533 works as expected.


[1] https://openqa.stg.fedoraproject.org/tests/1158166/asset/iso/01158166-Fedora-KDE-Live-x86_64-FEDORA-2021-b47f595533.iso

Comment 22 Kamil Páral 2021-04-23 12:46:27 UTC

Using Fedora-KDE-Live-x86_64-34-1.2.iso, I can boot into KDE (using both UEFI & BIOS) on my devices.

Comment 23 Fedora Update System 2021-04-23 21:03:55 UTC

FEDORA-2021-b47f595533 has been pushed to the Fedora 34 stable repository.
If problem still persists, please make note of it in this bug report.

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