https://bugs.kde.org/show_bug.cgi?id=523284

            Bug ID: 523284
           Summary: Sleep/wake problems after recent kernel update to
                    7.0.0-28-generic
    Classification: Plasma
           Product: plasmashell
      Version First 6.6.5
       Reported In:
          Platform: Kubuntu
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: generic-performance
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: 1.0

Following recent update to kernel 7.0.0-28-generic, when my system wakes up
from sleep, the internal monitor stays dark. Running with a dual-display setup.
External display continues working normally after wake. Problem only affects
internal monitor. Booting with the previous kernel version (7.0.0.-27-generic)
solves the problem. 

My full configuration:

Operating System: Kubuntu 26.04 LTS
KDE Plasma Version: 6.6.5
KDE Frameworks Version: 6.24.0
Qt Version: 6.10.2
Kernel Version: 7.0.0-28-generic (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-5300U CPU @ 2.30GHz
Memory: 12 GiB of RAM (11,4 GiB usable)
Graphics Processor: Intel® HD Graphics 5500
Manufacturer: LENOVO
Product Name: 20BWS11H00
System Version: ThinkPad T450s

Thanks in advance!

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