Bug 1221737

Summary: systemsettings5's Display and Monitor does not show some screens on its monitor layout area
Product: [openSUSE] openSUSE Distribution Reporter: Fuminobu Takeyama <ftake>
Component: KDE Workspace (Plasma)Assignee: E-Mail List <opensuse-kde-bugs>
Status: NEW --- QA Contact: E-mail List <qa-bugs>
Severity: Normal    
Priority: P5 - None    
Version: Leap 15.6   
Target Milestone: ---   
Hardware: x86-64   
OS: openSUSE Leap 15.5   
Whiteboard:
Found By: --- Services Priority:
Business Priority: Blocker: ---
Marketing QA Status: --- IT Deployment: ---
Attachments: "Display and Monitor" and all the screen available

Description Fuminobu Takeyama 2024-03-20 05:44:25 UTC 
I have an external monitor connected to my laptop. Display and Monitor recognizes all the monitors and I can change resolutions, scale, etc.

However it does not show the external monitor in "Drag screens to re-arrange them" area and I cannot adjust the screen layout.

See a screen shot attached.
Comment 1 Fuminobu Takeyama 2024-03-20 05:45:11 UTC 
Created attachment 873651 [details]
"Display and Monitor" and all the screen available
Comment 2 hui 2024-03-20 08:55:22 UTC 
*** Bug 1221736 has been marked as a duplicate of this bug. ***
Comment 3 Fuminobu Takeyama 2024-04-14 08:34:36 UTC 
Sorry, this problem is not related to Wayland and happens even on X11. It seems that this happens only with a specific monitor.

parse-edid < /sys/class/drm/card0-DP-2/edid 
Checksum Correct

Section "Monitor"
        Identifier ""
        ModelName ""
        VendorName "RTK"
        # Monitor Manufactured week 43 of 2020
        # EDID version 1.4
        # Digital Display
        # Display Physical Size not given. Normal for projectors.
        Gamma 2.20
        Option "DPMS" "true"
        Horizsync 30-135
        VertRefresh 40-61
        # Maximum pixel clock is 600MHz
        #Not giving standard mode: 1920x1080, 60Hz
        #Not giving standard mode: 1600x900, 60Hz
        #Not giving standard mode: 1280x720, 60Hz

        #Extension block found. Parsing...
#WARNING: I may have missed a mode (CEA mode 76)
#WARNING: I may have missed a mode (CEA mode 93)
#WARNING: I may have missed a mode (CEA mode 94)
#WARNING: I may have missed a mode (CEA mode 95)
#WARNING: I may have missed a mode (CEA mode 96)
#WARNING: I may have missed a mode (CEA mode 97)
#WARNING: I may have missed a mode (CEA mode 103)
#WARNING: I may have missed a mode (CEA mode 104)
#WARNING: I may have missed a mode (CEA mode 105)
#WARNING: I may have missed a mode (CEA mode 106)
#WARNING: I may have missed a mode (CEA mode 107)
        Modeline        "Mode 9" +hsync +vsync 
        Modeline        "Mode 0" +hsync -vsync 
        Modeline        "Mode 1" +hsync -vsync 
        Modeline        "Mode 2" +hsync -vsync 
        Modeline        "Mode 3" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync
        Modeline        "Mode 4" 
        Modeline        "Mode 5" 
        Modeline        "Mode 6" 
        Modeline        "Mode 7" 
        Modeline        "Mode 8" 
        Modeline        "Mode 10" +hsync +vsync 
        Option "PreferredMode" "Mode 9"
EndSection