Bug 2246713

Summary: Blank black screen instead of SDDM login when display is turned on after boot
Product: [Fedora] Fedora Reporter: Massimiliano L. <m.lincetto>
Component: sddmAssignee: Neal Gompa <ngompa13>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 38CC: jgrulich, kde-sig, m, ngompa13, pierluigi.fiorini, rdieter
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2024-05-31 08:51:22 UTC Type: ---
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SDDM log from a boot without login screen none

Description Massimiliano L. 2023-10-28 13:25:33 UTC 
I am running Fedora (with KDE) on a desktop with AMD discrete graphics (RX 6600) and a single external display connected through DisplayPort.

If the display is off during boot, after turning it on I get a blank black screen instead of the SDDM login screen.

It is possible to switch to a terminal but the login screen never appears. Logs show SDDM exits after a crash of maliit keyboard.

Reproducible: Always

Steps to Reproduce:
1. turn off display
2. boot up system
3. turn on display
Actual Results:  
Screen is blank, only switching to a terminal is possible.

Expected Results:  
Login screen appears.

Tested this both on my current Fedora 38 and on a fresh install of Fedora 39 beta.

System has been installed using "Fedora Everything" and selecting "KDE Desktop" and not through the Fedora KDE installation medium.

Problem does not appear on KDE Neon or OpenSUSE Tumbleweed, but it seems they are not running SDDM itself on Wayland.
Comment 1 Massimiliano L. 2023-10-28 13:26:29 UTC 
Created attachment 1995934 [details]
SDDM log from a boot without login screen
Comment 2 Aoife Moloney 2024-05-31 08:51:22 UTC 
Fedora Linux 38 entered end-of-life (EOL) status on 2024-05-21.

Fedora Linux 38 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

If you can reproduce this bug against a currently maintained version of Fedora Linux
please feel free to reopen this bug against that version. Note that the version
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Thank you for reporting this bug and we are sorry it could not be fixed.