[kde] [Bug 491641] New: App resolution scaling

[Massou]

https://bugs.kde.org/show_bug.cgi?id=491641

            Bug ID: 491641
           Summary: App resolution scaling
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: alois.ma at gmail.com
  Target Milestone: ---

Created attachment 172561
  --> https://bugs.kde.org/attachment.cgi?id=172561&action=edit
Illustration of the wrong (scaled down) app scale

Hello,

I have a laptop with an external screen.
The screen of the laptop has a resolution of 2560*1600 (150% scale) and an
external screen at 3440*1440 (100% scale).
When I open an some apps (with the lid of the laptop open or closed) and then I
close or open the lid, app resolution is wrong (either too big if I close the
lid or too small if I open it), resizing the window does nothing, if I
reopen/close the lid the resolution of the app is back to normal, if I
close/reopen the app the resolution is correct.

STEPS TO REPRODUCE
1. laptop with the lid open
2. Open an app
3. Close the lid of the laptop

OBSERVED RESULT
The resolution if scaled up too much

STEPS TO REPRODUCE
1. laptop with the lid closed
2. Open an app
3. Open the lid of the laptop
4. the app is now badly scaled

OBSERVED RESULT
The resolution of the app is too much scaled down

EXPECTED RESULT
Correct scaling of the content of the app

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.2
Kernel Version: 6.10.3-arch1-2 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 9 7940HS w/ Radeon 780M Graphics
Memory: 58.7 GiB of RAM
Graphics Processor: AMD Radeon 780M


ADDITIONAL INFORMATION
The problem was also present in previous versions of kde.
It seem like the wrong screen scaling is picked.
I've noticed this bug with krita (5.2.3), discord and vscode.
If both screens have the same scaling the problem does not appear.
If I close and reopen the app without moving the lid, the app resolution is
correct.

-- 
You are receiving this mail because:
You are the assignee for the bug.