I'm trying to reproduce it again but couldn't find exact same error behavior is quite same. I was facing this problem when, I was trying to connection my Ubuntu machine via xrdp which is installed on VirtualBox on Windows 10 host.
I can see that XRDP login is successful, but rather than landing on Desktop screen I'm landing on a login screen, which says "Authentication is required to create a color managed device". And when I provide credential then it blinks and I see same screen again. This time I got different error traces than before in /var/syslog. Below are traces: Some errors related to XRDP: May 9 13:19:20 KUMAR-PC xrdp[1918]: (1918)(140104060426048)[ERROR] Cannot read private key file /etc/xrdp/key.pem: Permission denied May 9 13:19:27 KUMAR-PC xrdp-sesman[1869]: (1869)(139642876421440)[ERROR] g_tcp_bind(9, 6010) failed bind IPv6 (errno=98) and IPv4 (errno=22). Then some segfault in X11 library: May 9 13:19:29 KUMAR-PC kernel: [ 610.613426] VBoxClient[2010]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] And finally different set of errors related to gsd-sharing: May 9 13:19:35 KUMAR-PC gsd-sharing[2190]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit gnome-user-share-webdav.service not loaded. May 9 13:19:35 KUMAR-PC gsd-sharing[2190]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit rygel.service not loaded. May 9 13:19:35 KUMAR-PC gsd-sharing[2190]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit gnome-remote-desktop.service not loaded. May 9 13:19:35 KUMAR-PC gsd-sharing[2190]: Failed to StopUnit service: GDBus.Error:org.freedesktop.systemd1.NoSuchUnit: Unit vino-server.service not loaded. May 9 13:19:35 KUMAR-PC gsd-media-keys[2231]: Unable to inhibit keypresses: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Permission denied Similar gsd-color, related error as before: May 9 13:19:36 KUMAR-PC gsd-color[2223]: failed to get edid: unable to get EDID for output Then continuous crashes in X11 and some errors in gsd-color: May 9 13:19:41 KUMAR-PC kernel: [ 622.713229] VBoxClient[2400]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:19:46 KUMAR-PC kernel: [ 628.066421] VBoxClient[2407]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:19:51 KUMAR-PC kernel: [ 633.369511] VBoxClient[2415]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:19:57 KUMAR-PC kernel: [ 638.761881] VBoxClient[2423]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:01 KUMAR-PC gsd-color[2223]: failed to create device: Timeout was reached May 9 13:20:01 KUMAR-PC gsd-color[2223]: failed to get devices: Timeout was reached May 9 13:20:02 KUMAR-PC kernel: [ 644.128581] VBoxClient[2430]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:08 KUMAR-PC kernel: [ 649.471082] VBoxClient[2441]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:13 KUMAR-PC kernel: [ 654.786431] VBoxClient[2451]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:18 KUMAR-PC kernel: [ 660.122171] VBoxClient[2458]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:24 KUMAR-PC kernel: [ 665.466061] VBoxClient[2465]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:29 KUMAR-PC kernel: [ 670.779317] VBoxClient[2472]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:34 KUMAR-PC kernel: [ 676.085570] VBoxClient[2479]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:40 KUMAR-PC kernel: [ 681.400352] VBoxClient[2507]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] And blah blah: May 9 13:20:45 KUMAR-PC colord[1297]: failed to get seat for session c2 [pid 2223]: No data available May 9 13:20:45 KUMAR-PC gsd-color[1232]: no xrandr-rdp0 device found: Failed to find output xrandr-rdp0 May 9 13:20:45 KUMAR-PC kernel: [ 686.878261] VBoxClient[2551]: segfault at 968 ip 00007f7c21a8c6ad sp 00007fff970e0a20 error 4 in libX11.so.6.3.0[7f7c21a58000+133000] May 9 13:20:45 KUMAR-PC kernel: [ 687.028638] traps: gsd-color[2223] trap divide error ip:55dd2458194a sp:7ffe88a63da0 error:0 in gsd-color[55dd24578000+12000] .... May 9 13:20:52 KUMAR-PC gsd-xsettings[2205]: gsd-xsettings: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. May 9 13:20:52 KUMAR-PC gsd-wacom[2209]: gsd-wacom: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. May 9 13:20:52 KUMAR-PC gsd-media-keys[2231]: gsd-media-keys: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. May 9 13:20:52 KUMAR-PC gsd-clipboard[2221]: gsd-clipboard: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. May 9 13:20:52 KUMAR-PC update-notifier[2489]: update-notifier: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. May 9 13:20:52 KUMAR-PC gsd-keyboard[2227]: gsd-keyboard: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. May 9 13:20:52 KUMAR-PC gsd-power[2184]: gsd-power: Fatal IO error 11 (Resource temporarily unavailable) on X server :11.0. I will attach detailed logs. I need to find out if some command automatically can collect required traces. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876606 Title: colord erros in varlog which causes display to fail To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/colord/+bug/1876606/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
