Bug 480154

Summary: Screen resolutions bumps down 1024x768 after wake from sleep of both screen power save and also from system power save.
Product: [Plasma] kwin Reporter: hovgaard <alan.hovgaard>
Component: wayland-genericAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED WORKSFORME    
Severity: normal CC: xaver.hugl
Priority: NOR Keywords: qt6
Version First Reported In: 5.92.0   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description hovgaard 2024-01-22 03:04:46 UTC 
When i boot my system to plasma wayland session my screen resolution is FHD (1920x1080@60hz) .
But when either screen or system goes into powersave mode, and  i wake computer og turn screen power save off by presseing a key on keyboard, the computer comes back up but then screen resolution is lost and now is bumped down to 1024x768.
I can restore the resolution from system settings display settings or by sending "kscreen-doctor output.HDMI-A-1.mode.1920x1080@60" from command line.


STEPS TO REPRODUCE
1. Wait for a powersave event to occur happens on both screen power save or after wake to resume of system power save
2. Press any key to resume from power save
3. The resolution is bumped down to 1024x768
4. These 3 action restore my 1920x1080 resolution:
1) A reboot fixes resolution, 2) kscreen-doctor cmd above, or 3) using System settings display option to restore also works fine.

OBSERVED RESULT
Screen resolution is lost on power save events

EXPECTED RESULT
Screen resolution to stay at 1980x1080 as configured for the System using System Settings. And which have been set and in effect as a reboot will set this resolution at reboot. Only after a power save event is the resolution lost...

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.92.0
KDE Frameworks Version: 5.248.0
Qt Version: 6.7.0
Kernel Version: 6.7.0-arch3-1 (64-bit)
Graphics Platform: Wayland
Processors: 32 × 13th Gen Intel® Core™ i9-13900HX
Memory: 62.6 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 4070 Laptop GPU/PCIe/SSE2
Manufacturer: LENOVO
Product Name: 82WK
System Version: Legion Pro 5 16IRX8
Comment 1 hovgaard 2024-01-22 03:08:14 UTC 
NVIDIA-SMI 545.29.06              Driver Version: 545.29.06    CUDA Version: 12.3
Comment 2 Zamundaaa 2024-01-22 13:40:25 UTC 
Please attach the output of
> journactl --user-unit plasma-kwin_wayland --boot 0
after reproducing the issue.
Comment 3 Bug Janitor Service 2024-02-06 03:45:34 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 Bug Janitor Service 2024-02-21 03:46:17 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!