D8752: [platforms/drm] At safety checks for the properties

[Fabian Vogt]

fvogt added a comment.


  Not quite sure whether it's related to this change, but I tried to debug the failure to init the primary plane and found this:
  
    kwin_wayland_drm: Using Atomic Mode Setting.
    kwin_wayland_drm: Number of planes: 2
    kwin_wayland_drm: Atomic init for plane: 26
    kwin_wayland_drm: 26: type' (id 6): 1
    kwin_wayland_drm: "type"  has enums: QVector("Primary", "Cursor", "Overlay")
    kwin_wayland_drm: Test all 3 possible enums:
    kwin_wayland_drm: Enum 'Overlay': runtime-value = 0
    kwin_wayland_drm: Enum 'Primary': runtime-value = 1
    kwin_wayland_drm: Enum 'Cursor': runtime-value = 2
    kwin_wayland_drm: => "type" with mapped enum value "Primary"
    [...]
    kwin_wayland_drm: Atomic init for plane: 27
    kwin_wayland_drm: 27: type' (id 6): 2
    kwin_wayland_drm: "type"  has enums: QVector("Primary", "Cursor", "Overlay")
    kwin_wayland_drm: Test all 3 possible enums:
    kwin_wayland_drm: Enum 'Overlay': runtime-value = 0
    kwin_wayland_drm: Enum 'Primary': runtime-value = 1
    kwin_wayland_drm: Enum 'Cursor': runtime-value = 2
    kwin_wayland_drm: => "type" with mapped enum value "Cursor"
  
  But then in initPrimaryPlane it is unable to find any plane with type == Primary.
  If I set a breakpoint on KWin::DrmPlane::type(), every single call returns ::Overlay as m_props[0] is nullptr.

REPOSITORY
  R108 KWin

BRANCH
  drm-property-safety

REVISION DETAIL
  https://phabricator.kde.org/D8752

To: graesslin, #kwin, #plasma, fvogt, subdiff
Cc: plasma-devel, kwin, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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