Fedora hangs on screenlocker_greeter

[Klaus Kolle]

Hello Fedoras

I'm geting tired of my upgrade to F42, as my F41 ran completely stable.

At least once a day I run into a system hang - it hangs completely and 
only power down can bring one further.

I find lines like these in jounralctl:
jul 16 11:45:04 slimbook.ingnet.dk kscreenlocker_greet[38103]: qml: The 
backend got an unknown wallpaper provider type. The wallpaper will now 
fall back to the default. Please check your wallpaper configuration!
-- Boot 7418677328bc4154bc6a7eb2081d8de2 --

I've tried to boot in x11, but it seems as if the problem remains.

How do I downgrade to F41? Or are there any known fixes for the problem?

Kindly

|<

[Steve Cossette]

Mmmm I never got this kind of error, and no downgrading is unfortunately
not a supported action. Have you tried to change your wallpaper to see if
that would fix it?

On Wed, Jul 16, 2025 at 8:47 AM Klaus Kolle via kde <
[e-mail]> wrote:
> Hello Fedoras
>
> I'm geting tired of my upgrade to F42, as my F41 ran completely stable.
>
> At least once a day I run into a system hang - it hangs completely and
> only power down can bring one further.
>
> I find lines like these in jounralctl:
> jul 16 11:45:04 slimbook.ingnet.dk kscreenlocker_greet[38103]: qml: The
> backend got an unknown wallpaper provider type. The wallpaper will now
> fall back to the default. Please check your wallpaper configuration!
> -- Boot 7418677328bc4154bc6a7eb2081d8de2 --
>
> I've tried to boot in x11, but it seems as if the problem remains.
>
> How do I downgrade to F41? Or are there any known fixes for the problem?
>
> Kindly
>
> |<
>
> --
> Med venlig hilsen / Sincerely
>
> Klaus Kolle
>
> Teknikumingeniør, B.Sc.EE.,     e-mail    : [e-mail]
> Master of IT                    www       : www.kolle.dk
> Asger Jorns Vej 17              Telefon   : [phone]
> DK-8600 Silkeborg, Denmark
>
> "Forskellen på teori og praksis er større i praksis end i teorien", ukendt
>
> "Man skal ikke tilskrive til sammensværgelser hvad der tilstrækkeligt
> kan forklares af inkompetence"
> Poul Henning Kamp
>
> Planlægning er tanker om noget man agter at gøre en gang i fremtiden,
> hvis omstændighederne tillader det.
> Klaus Kolle 2006
>
> Perfection is achieved not when nothing more to add, but when there is
> nothing more left to take away.
> Antoine de Saint-Exupery
>
> --
> _______________________________________________
> kde mailing list -- [e-mail]
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[Klaus Kolle]

On 16.07.2025 14.52, Steve Cossette via kde wrote:
> Mmmm I never got this kind of error, and no downgrading is unfortunately 
> not a supported action. Have you tried to change your wallpaper to see 
> if that would fix it?

Hi Steve.

No I haven't tried to change wallpaper - I have a folder with 100+ 
images that is randomly show in a slideshow.

Now I tried to set it to show a blank solid color andI will see what 
happens.

Thanks for your thoughts.

|<

[Robin Laing]

On 2025-07-16 06.47, Klaus Kolle via kde wrote:
> Hello Fedoras
>
> I'm geting tired of my upgrade to F42, as my F41 ran completely stable.
>
> At least once a day I run into a system hang - it hangs completely and 
> only power down can bring one further.
>
> I find lines like these in jounralctl:
> jul 16 11:45:04 slimbook.ingnet.dk kscreenlocker_greet[38103]: qml: The 
> backend got an unknown wallpaper provider type. The wallpaper will now 
> fall back to the default. Please check your wallpaper configuration!
> -- Boot 7418677328bc4154bc6a7eb2081d8de2 --
>
> I've tried to boot in x11, but it seems as if the problem remains.
>
> How do I downgrade to F41? Or are there any known fixes for the problem?
>
> Kindly
>
> |<

FWIW, in F41, I have the odd issue with F41 getting screwed up on 
greeter as well.  Not enough to investigate, I am sorry to say.  I just 
have a routine to fix the issue through killing greeter in some cases 
and loginctl in others.

I don't think this is new.  I will do my best to look at the logs when 
it happens again.

I now keep my different login sessions running as much as possible to 
stop the need for a reboot.

When it happens on one computer, it is a situation where it needs to be 
unlocked and working ASAP.

Robin

[Klaus Kolle]

On 16.07.2025 14.47, Klaus Kolle via kde wrote:
> Hello Fedoras
>
> I'm geting tired of my upgrade to F42, as my F41 ran completely stable.
>
> At least once a day I run into a system hang - it hangs completely and 
> only power down can bring one further.
>
> I find lines like these in jounralctl:
> jul 16 11:45:04 slimbook.ingnet.dk kscreenlocker_greet[38103]: qml: The 
> backend got an unknown wallpaper provider type. The wallpaper will now 
> fall back to the default. Please check your wallpaper configuration!
> -- Boot 7418677328bc4154bc6a7eb2081d8de2 --
>
> I've tried to boot in x11, but it seems as if the problem remains.
>
> How do I downgrade to F41? Or are there any known fixes for the problem?
>
> Kindly
>
> |<

A short folow up on this.

I swiched of the slideshow on the background and choose a single colour.

I havn't run into the hang since then.

Thanks for the inspiration Steve Cossette.

|<

[Steve Cossette]

No worries! It's slightly strange that it didn't do it on f41 and does it
now on F42. Maybe the library for the wallpaper wasn't on your F42 install?

Not sure. It's strange nonetheless.

On Sat, Jul 19, 2025 at 4:33 PM Klaus Kolle via kde <
[e-mail]> wrote:
> On 16.07.2025 14.47, Klaus Kolle via kde wrote:
> > Hello Fedoras
> >
> > I'm geting tired of my upgrade to F42, as my F41 ran completely stable.
> >
> > At least once a day I run into a system hang - it hangs completely and
> > only power down can bring one further.
> >
> > I find lines like these in jounralctl:
> > jul 16 11:45:04 slimbook.ingnet.dk kscreenlocker_greet[38103]: qml: The
> > backend got an unknown wallpaper provider type. The wallpaper will now
> > fall back to the default. Please check your wallpaper configuration!
> > -- Boot 7418677328bc4154bc6a7eb2081d8de2 --
> >
> > I've tried to boot in x11, but it seems as if the problem remains.
> >
> > How do I downgrade to F41? Or are there any known fixes for the problem?
> >
> > Kindly
> >
> > |<
>
> A short folow up on this.
>
> I swiched of the slideshow on the background and choose a single colour.
>
> I havn't run into the hang since then.
>
> Thanks for the inspiration Steve Cossette.
>
> |<
>
> --
> Med venlig hilsen / Sincerely
>
> Klaus Kolle
>
> Teknikumingeniør, B.Sc.EE.,     e-mail    : [e-mail]
> Master of IT                    www       : www.kolle.dk
> Asger Jorns Vej 17              Telefon   : [phone]
> DK-8600 Silkeborg, Denmark
>
> "Forskellen på teori og praksis er større i praksis end i teorien", ukendt
>
> "Man skal ikke tilskrive til sammensværgelser hvad der tilstrækkeligt
> kan forklares af inkompetence"
> Poul Henning Kamp
>
> Planlægning er tanker om noget man agter at gøre en gang i fremtiden,
> hvis omstændighederne tillader det.
> Klaus Kolle 2006
>
> Perfection is achieved not when nothing more to add, but when there is
> nothing more left to take away.
> Antoine de Saint-Exupery
> --
> _______________________________________________
> kde mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives:
> https://lists.fedoraproject.org/archives/list/[e-mail]
> Do not reply to spam, report it:
> https://pagure.io/fedora-infrastructure/new_issue