Description of problem:
Click on "Send Key" -> "Ctrl+Alt+F1"

Version-Release number of selected component:
python3-3.8.2-2.fc32

Additional info:
reporter:       libreport-2.12.0
backtrace_rating: 4
cmdline:        /usr/bin/python3 /usr/share/virt-manager/virt-manager
crash_function: poll_for_event
executable:     /usr/bin/python3.8
journald_cursor: s=adf4884defab4159a5a36efa263ee498;i=12c1d28;b=79056230a8eb4619ae17ef1871de1429;m=3687a9e2ca;t=5a5323dfe19f8;x=7e699642e9af87c0
kernel:         5.6.8-300.fc32.x86_64
rootdir:        /
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 0 (10 frames)
 #4 poll_for_event at xcb_io.c:260
 #5 poll_for_response at xcb_io.c:278
 #8 XPending at Pending.c:55
 #9 gdk_check_xpending at gdkeventsource.c:269
 #10 gdk_event_source_check at gdkeventsource.c:306
 #11 g_main_context_check at ../glib/gmain.c:3880
 #13 g_main_context_iteration at ../glib/gmain.c:4108
 #14 g_application_run at ../gio/gapplication.c:2559
 #15 ffi_call_unix64 at ../src/x86/unix64.S:76
 #16 ffi_call at ../src/x86/ffi64.c:525