[Wayland-bugs] [Bug 64183] New: Hotplugging external display with weston running leads to compositor lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64183

          Priority: medium
            Bug ID: 64183
          Assignee: wayland-bugs at lists.freedesktop.org
           Summary: Hotplugging external display with weston running leads
                    to compositor lockup
          Severity: critical
    Classification: Unclassified
                OS: All
          Reporter: rob at robster.org.uk
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: weston
           Product: Wayland

2e43720 + my submitted patch to tweak the pageflip messages.

After attaching gdb I see that drmModeSetCrtc doesn't called on this new output
before the page flip gets called.

[13:58:30.765] Output HDMI1, (connector 16, crtc 5)
  mode 1920x1080 at 60.0, preferred, current
  mode 1920x1080 at 50.0
  mode 1920x1080 at 30.0
  mode 1920x1080 at 25.0
  mode 1920x1080 at 24.0
  mode 1920x1080 at 50.0
  mode 1920x1080 at 60.0
  mode 1600x1200 at 60.0
  mode 1680x1050 at 59.9
  mode 1680x945 at 60.0
  mode 1400x1050 at 59.9
  mode 1600x900 at 60.0
  mode 1280x1024 at 75.0
  mode 1280x1024 at 60.0
  mode 1440x900 at 75.0
  mode 1440x900 at 59.9
  mode 1280x960 at 60.0
  mode 1366x768 at 60.0
  mode 1360x768 at 60.0
  mode 1280x800 at 74.9
  mode 1280x800 at 59.9
  mode 1152x864 at 75.0
  mode 1280x768 at 74.9
  mode 1280x768 at 60.0
  mode 1280x720 at 50.0
  mode 1280x720 at 60.0
  mode 1024x768 at 75.1
  mode 1024x768 at 70.1
  mode 1024x768 at 60.0
  mode 1024x576 at 60.0
  mode 832x624 at 74.6
  mode 800x600 at 72.2
  mode 800x600 at 75.0
  mode 800x600 at 60.3
  mode 800x600 at 56.2
  mode 720x576 at 50.0
  mode 848x480 at 60.0
  mode 720x480 at 59.9
  mode 640x480 at 72.8
  mode 640x480 at 75.0
  mode 640x480 at 66.7
  mode 640x480 at 60.0
  mode 720x400 at 70.1
[13:58:30.767] connector 16 connected
[13:58:30.817] queueing pageflip failed (start repaint loop): Device or
resource busy

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