Bug 511899

Summary:	Black screen with cursor after using an sddm theme for startup.
Product:	[Plasma] kwin	Reporter:	nulix
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	NEEDSINFO WAITINGFORINFO
Severity:	critical	CC:	kde
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Solus
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description nulix 2025-11-10 08:14:14 UTC

SUMMARY


STEPS TO REPRODUCE
1. After updating Solus Plasma (November 9) and restarting, there is a black screen with only the mouse arrow.
2. 
3. 

OBSERVED RESULT
I had a long update, followed by a second one. It was the second one that blocked everything.

EXPECTED RESULT
Complete startup of the SolusOS Plasma system

SOFTWARE/OS VERSIONS
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 6.5.2
KDE Plasma Version: 6.5.2
KDE Frameworks Version: 6.19
Qt Version: 6.9.3

ADDITIONAL INFORMATION
After updating Solus Plasma (November 9) and restarting, there is a black screen with only the mouse arrow.
I ran the commands I found in my research : eopkg rebuild-db; eopkg up; eopkg check; eopkg check -y.
None of them solved the problem.
No error after running the command: eopkg check.
I also tried to remove the latest update with this command: eopkg history -t number (number = latest update).
Nothing worked.

Comment 1 David Edmundson 2025-11-10 11:14:04 UTC

If the mouse moves that implies plasmashell isn't starting or closing.

Please check logs of `journalctl --user -b`

Comment 2 Bug Janitor Service 2025-11-25 03:46:17 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 3 nulix 2025-11-25 11:06:40 UTC

This bug occurs systematically when using an old sddm startup theme with Wayland.
And, unless I'm mistaken, with Plasma 6. I didn't have this problem before.
This bug is still present.

Comment 4 Bug Janitor Service 2025-12-10 03:46:11 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 5 nulix 2025-12-10 09:24:32 UTC

(In reply to Bug Janitor Service from comment #4)
> 🐛🧹 ⚠️ 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!

This bug occurs systematically when using an old sddm startup theme with Wayland.
And, unless I'm mistaken, with Plasma 6. I didn't have this problem before.
This bug is still present.

Comment 6 Bug Janitor Service 2025-12-25 03:46:38 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 nulix 2025-12-25 08:35:24 UTC

As I have said several times here, this bug is occurs systematically when using an old sddm startup theme with Wayland.
And, unless I'm mistaken, with Plasma 6. I didn't have this problem before.
This bug is still present.