Note: this is from a different computer where I am on X11 with NVIDIA (original report with Wayland and Intel i915) Here too it crashes, the journal basically prints this: ---- Apr 28 15:36:38 systemd[3038]: Started Application launched by gnome-shell. Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Samsung SyncMaster (DFP-0): connected Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Samsung SyncMaster (DFP-0): Internal TMDS Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Samsung SyncMaster (DFP-0): 330.0 MHz maximum pixel clock Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): DFP-1: disconnected Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): DFP-1: Internal TMDS Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): DFP-1: 165.0 MHz maximum pixel clock Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): DFP-2: disconnected Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): DFP-2: Internal DisplayPort Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): DFP-2: 2660.0 MHz maximum pixel clock Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): AOC 2460 (DFP-3): connected Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): AOC 2460 (DFP-3): Internal TMDS Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): AOC 2460 (DFP-3): 165.0 MHz maximum pixel clock Apr 28 15:36:38 /usr/libexec/gdm/gdm-x-session[3277]: (--) NVIDIA(GPU-0): Apr 28 15:36:45 kernel: gnome-control-c[2483]: segfault at 53f ip 00007f98bd43ebb0 sp 00007ffd163b5498 error 4 in libglib-2.0.so.0.6800.1[7f98bd41a000+8b000] Apr 28 15:36:45 kernel: Code: c4 08 48 89 f8 5b 5d c3 66 90 48 83 ec 08 e8 e7 ba fd ff 85 c0 0f 94 c0 48 83 c4 08 0f b6 c0 c3 66 2e 0f 1f 84 00 00 00 00 00 <0f> be 07 41 b8 05 15 00 00 84 c0 74 19 0f 1f 00 44 89 c2 48 83 c7 Apr 28 15:36:45 systemd[1]: Started Process Core Dump (PID 2497/UID 0). ---- followed by the gdb backtrace attached in the original report (don't have debugging symbols installed on this machine). Note that I already have two input sources and I am trying to add a third. Don't know if that may be causing this, but just to be explicit about the details.