Bug 514258

Created attachment 188284 [details]
Display configuration not responding

+++ This bug was initially created as a clone of Bug #514106 +++

SUMMARY

This bug is a regression from Plasma 6.3 Kubuntu  the 25.04.  Since upgrading to Kubuntu 25.10 Plasma 6.4 the Dispaly configuration panel and especially the screen rotation and sceen orientation freatures continually lapse and get stuck in incorrect properties.  The Display Configuration widget itself fails on start-up (lomg delay) and appears to reset before showing.  

These features worked promptly and smoothly for the previous Kubuntu 25.04 on this, the  same laptop.

STEPS TO REPRODUCE

1.  Begin with a suspended laptop (Kubuntu)

2. Open laptop screen from Suspend, with screen vertical and keyboard in your lap (normal)

3. The 25.10 screen and keyboard seem to be locked for a good amount of time, more than a minute.
    * Every previouos version of Kubuntu until 25.04 the KDE screen refreshed almost immediately on awaken.  

3.  The screen is stuck in up-side-down orientation when SLEEP was issued on upside-down orientation.
    * In the Plasma 6.4 the screen flipped right-way-up almost immediately 

4. The user must use  the upside-down screen to get started 

5. Open the launcher and select 'Display Configuration' (up-side-down)

6. 'Display Configuration' shows as "Not Responding"
    * see screenshot: Display-Conmfiguration.01:Not-Responding
    * The PC is locked during this time.  Keys, mouse, touchpad and touchscreen do not respond.
    * Including that command line is not working either until the Display Configuration comes up.

7. When the Display Configuration finally comes-up you, the  "Automatic" screen orientation sub-section is not present.
    * see screenshot: Display-Conmfiguration.02:Automatic-Missing

8. When you use APPLY the PC is locked-up and there is a very noticible delay


OBSERVED RESULT

As described doesabove

1. Screen orientation is upside-down
2. Display Configruation lost and fields missing
3. Lock-up or no response during APPLY actions.
4. Display Configuration settings fail to persist


When I originally submitted this bug it was closed as multiple issues.  That is incorrect.  There is ONE issue the Display Config does not persist and consequent behaviours are symptoms.   


EXPECTED RESULT

I would like everyting to work nice and smoothly as it did with Plasma 6.3 / Kubuntu 25.04

*  The display configuration and screen rotation ALL work as long as the PC is active so  all drivers and such  are running as intended.

* The screen roation and other fuctions Actually Work when the Dispklay Configuration has been "restored" by manually working the screens.


SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Kubuntu 25.10 
KDE Plasma Version: Plasma 6.4.5
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.2

ADDITIONAL INFORMATION

Kernel Version: 6.17.0-8-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz
Memory: 16 GiB of RAM (15.4 GiB usable)
Graphics Processor: Intel® Iris® Xe Graphics

* I don't have any idea where to look for error messages on this.

* There's noting obvious in the syslog 

Please let me know if there is a specific log I can look at.