Bug 513159

Summary:	Power management need to be active on the login screen
Product:	[Plasma] plasma-login-manager	Reporter:	Morgan <info>
Component:	general	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	wishlist	CC:	kde, nate, olib141, sourcework
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Morgan 2025-12-10 08:04:26 UTC

Power schedule in KDE needs to control the Login screen, so my monitors goes into power save when its not active.

Lets set the scene, you have done work all morning, hit upgrade software, it reboots and does its thing. You get a small coffee-break meanwhile you are waiting. You get a call that you are needed downstairs on the floor and you while be gone for 30min.

When you come back to your computer it promptly showing the login screen, that's all good. But you also have burn-in (ghosting) from the highlights in your monitor due to the facts that your monitor has been on full brightness for 30min show the same image (login screen).

Some monitors can handle it, my Asus ROG Zephyrus G15 GA503 will not! - It takes 10-20min for my monitor to get back to normal again.

This is not a fault in my laptop, this is a feature missing in KDE. The power schedule needs to be active in the login screen, so it can power of my monitor when not is use.

Same thing on my desktop, a do a reboot, update my software, go away to get the kids from daycare, cook food, etc. come back to a login screen on full display. My desktop monitors does not get ghosting from long hours of but it's annoying that my screens do not go to power off when not in use.

Please get the power scheduler working on login screen! :)

Comment 1 Nate Graham 2025-12-10 16:18:49 UTC

This is something we couldn't do with SDDM, but we can do with plasma-login. Moving there.

That said…

> But you also have burn-in (ghosting) from the highlights in your monitor due to the facts that your
> monitor > has been on full brightness for 30min show the same image (login screen).
This sounds like broken hardware to me. Burn-in and ghosting after 30 minutes is not expected! Your laptop has an IPS screen, even, and those aren't supposed to be suffering from those issues at all. My laptop has an OLED screen and I don't see it happen. I'd recommend getting in touch with the manufacturer about it. You paid good money for that computer; it shouldn't have a broken screen!

Comment 2 Nate Graham 2025-12-10 16:54:07 UTC

*** Bug 513170 has been marked as a duplicate of this bug. ***

Comment 3 Morgan 2025-12-10 17:39:52 UTC

(In reply to Nate Graham from comment #2)
> *** Bug 513170 has been marked as a duplicate of this bug. ***

(In reply to Nate Graham from comment #1)
> This is something we couldn't do with SDDM, but we can do with plasma-login.
> Moving there.
> 
> That said…
> 
> > But you also have burn-in (ghosting) from the highlights in your monitor due to the facts that your
> > monitor > has been on full brightness for 30min show the same image (login screen).
> This sounds like broken hardware to me. Burn-in and ghosting after 30
> minutes is not expected! Your laptop has an IPS screen, even, and those
> aren't supposed to be suffering from those issues at all. My laptop has an
> OLED screen and I don't see it happen. I'd recommend getting in touch with
> the manufacturer about it. You paid good money for that computer; it
> shouldn't have a broken screen!

A will talk to Asus about this, if they have seen something like it on other GA503. Thank you for your input! :)