D23496: Get output physical size from output device

romangg added a comment.


  In D23496#521380 <https://phabricator.kde.org/D23496#521380>, @zzag wrote:
  
  > > Nested Wayland, Drm, virtual backends tested.
  >
  > This change breaks nested X11 backend.
  >
  >   No backend specified through command line argument, trying auto resolution
  >   Process 1847 stopped                                                                                                                                                                                                                                    
  >   * thread #1, name = 'kwin_wayland', stop reason = signal SIGSEGV: invalid address (fault address: 0x10)                                                                                                                                                 
  >       frame #0: 0x00007ffff59998c8 libKF5WaylandServer.so.5`QScopedPointer<KWayland::Server::Global::Private, QScopedPointerDeleter<KWayland::Server::Global::Private> >::data(this=0x0000000000000010) const at qscopedpointer.h:140:16                  
  >      137                                                                                                                                                                                                                                                  
  >      138      T *data() const Q_DECL_NOTHROW                                                                                                                                                                                                              
  >      139      {                                                                                                                                                                                                                                           
  >   -> 140          return d;                                                                                                                                                                                                                               
  >      141      }                                                                                                                                                                                                                                           
  >      142                                                                                                                                                                                                                                                  
  >      143      T *get() const Q_DECL_NOTHROW                                                                                                                                                                                                               
  >   (lldb) bt                                                                                                                                                                                                                                               
  >   * thread #1, name = 'kwin_wayland', stop reason = signal SIGSEGV: invalid address (fault address: 0x10)                                                                                                                                                 
  >     * frame #0: 0x00007ffff59998c8 libKF5WaylandServer.so.5`QScopedPointer<KWayland::Server::Global::Private, QScopedPointerDeleter<KWayland::Server::Global::Private> >::data(this=0x0000000000000010) const at qscopedpointer.h:140:16                  
  >       frame #1: 0x00007ffff59caba0 libKF5WaylandServer.so.5`KWayland::Server::OutputDeviceInterface::d_func(this=0x0000000000000000) const at outputdevice_interface.cpp:632:45                                                                           
  >       frame #2: 0x00007ffff59ca9da libKF5WaylandServer.so.5`KWayland::Server::OutputDeviceInterface::scaleF(this=0x0000000000000000) const at outputdevice_interface.cpp:590:5                                                                            
  >       frame #3: 0x00007ffff7dcc30e libkwin.so.5`KWin::AbstractWaylandOutput::scale(this=0x00005555556bed20) const at abstract_wayland_output.cpp:98:41                                                                                                    
  >       frame #4: 0x00007fffed74332d KWinWaylandX11Backend.so`KWin::X11WindowedOutput::init(this=0x00005555556bed20, logicalPosition=0x00007fffffffd990, pixelSize=0x00007fffffffd998) at x11windowed_output.cpp:60:64                                      
  >       frame #5: 0x00007fffed73c451 KWinWaylandX11Backend.so`KWin::X11WindowedBackend::createOutputs(this=0x00005555556234c0) at x11windowed_backend.cpp:157:21
  >       frame #6: 0x00007fffed73bd04 KWinWaylandX11Backend.so`KWin::X11WindowedBackend::init(this=0x00005555556234c0) at x11windowed_backend.cpp:95:22
  >       frame #7: 0x000055555556b337 kwin_wayland`KWin::ApplicationWayland::createBackend(this=0x00007fffffffdce0) at main_wayland.cpp:176:21
  >       frame #8: 0x000055555556b1f6 kwin_wayland`KWin::ApplicationWayland::performStartup(this=0x00007fffffffdce0) at main_wayland.cpp:163:18
  >       frame #9: 0x00007ffff7ca32e6 libkwin.so.5`KWin::Application::start(this=0x00007fffffffdce0) at main.cpp:156:19
  >       frame #10: 0x000055555556f771 kwin_wayland`main(argc=8, argv=0x00007fffffffdf48) at main_wayland.cpp:676:12
  >       frame #11: 0x00007ffff3df9ee3 libc.so.6`__libc_start_main + 243
  >       frame #12: 0x000055555556450e kwin_wayland`_start + 46
  >   (lldb)
  >
  
  
  Thanks for feedback, gonna check it out.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D23496

To: romangg, #kwin, davidedmundson
Cc: zzag, kwin, LeGast00n, The-Feren-OS-Dev, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, Pitel, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, mart