First connection always show Gnome's "Oh no, something wrong" #2660

HubKing · 2023-05-10T08:39:40Z

HubKing
May 10, 2023

First connection after system boot always shows "Oh no, something wrong". Gnome disables extensions "as a precaution", but even if I reboot the system with extensions disabled, next time, first XRDP connection crashes anyway. After the first crash, subsequent connections succeed even with extensions enabled.

I had set up XRDP about a year ago, and back then, this did not happen. It began to happen somewhere in this year, without my changing anything related to XRDP.

Is there a solution?

Installed packages are: https://aur.archlinux.org/packages/xrdp and https://aur.archlinux.org/packages/xorgxrdp . Below is the log since a boot.

xrdp[498]: [INFO ] address [0.0.0.0] port [3389] mode 1
xrdp[498]: [INFO ] listening to port 3389 on 0.0.0.0
xrdp[498]: [INFO ] xrdp_listen_pp done
xrdp[614]: [INFO ] starting xrdp with pid 614
xrdp[614]: [INFO ] address [0.0.0.0] port [3389] mode 1
xrdp[614]: [INFO ] listening to port 3389 on 0.0.0.0
xrdp[614]: [INFO ] xrdp_listen_pp done
xrdp[614]: [INFO ] Socket 12: AF_INET6 connection received from ::ffff:192.168.1.211 port 47340
xrdp[797]: [INFO ] Security protocol: configured [SSL|RDP], requested [SSL|HYBRID|RDP], selected [SSL]
xrdp[797]: [INFO ] Connected client computer name: <remotename>
xrdp[797]: [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type 0xc006 is unknown (ignored)
xrdp[797]: [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type 0xc00a is unknown (ignored)
xrdp[797]: [INFO ] xrdp_load_keyboard_layout: Keyboard information sent by the RDP client, keyboard_type:[0x04], keyboard_subtype:[0x00], keylayout:[0x00000409]
xrdp[797]: [INFO ] xrdp_load_keyboard_layout: model [] variant [] layout [us] options []
xrdp[797]: [INFO ] TLS connection established from ::ffff:192.168.1.211 port 47340: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
xrdp[797]: [INFO ] xrdp_caps_process_pointer: client supports new(color) cursor
xrdp[797]: [INFO ] xrdp_process_offscreen_bmpcache: support level 1 cache size 7864320 MB cache entries 2000
xrdp[797]: [INFO ] xrdp_caps_process_codecs: RemoteFX, codec id 3, properties len 49
xrdp[797]: [WARN ] Client Capability: not enough orders supported by client, client wants off screen bitmap but offscreen bitmaps disabled
xrdp[797]: [INFO ] Loading keymap file /etc/xrdp/km-00000409.ini
xrdp[797]: [WARN ] local keymap file for 0x00000409 found and doesn't match built in keymap, using local keymap file
xrdp[797]: [INFO ] connecting to sesman on 127.0.0.1:3350
xrdp[797]: [INFO ] xrdp_wm_log_msg: sesman connect ok
xrdp[797]: [INFO ] sesman connect ok
xrdp[797]: [INFO ] sending login info to session manager. Please wait...
xrdp[797]: [INFO ] xrdp_wm_log_msg: login successful for user <username> on display 10
xrdp[797]: [INFO ] login successful for user <username> on display 10
xrdp[797]: [INFO ] loaded module 'libxup.so' ok, interface size 10296, version 4
xrdp[797]: [INFO ] started connecting
xrdp[797]: [INFO ] lib_mod_connect: connecting via UNIX socket
xrdp[797]: [INFO ] lib_mod_log_peer: xrdp_pid=797 connected to X11rdp_pid=804 X11rdp_uid=1000 X11rdp_gid=1000 client_ip=::ffff:192.168.1.211 client_port=47340
xrdp[797]: [INFO ] connected ok
xrdp[797]: [INFO ] xrdp_caps_process_pointer: client supports new(color) cursor
xrdp[797]: [INFO ] xrdp_process_offscreen_bmpcache: support level 1 cache size 7864320 MB cache entries 2000
xrdp[797]: [INFO ] xrdp_caps_process_codecs: RemoteFX, codec id 3, properties len 49
xrdp[797]: [WARN ] Client Capability: not enough orders supported by client, client wants off screen bitmap but offscreen bitmaps disabled
xrdp[614]: [INFO ] Socket 12: AF_INET6 connection received from ::ffff:192.168.1.211 port 47368
xrdp[1389]: [INFO ] Security protocol: configured [SSL|RDP], requested [SSL|HYBRID|RDP], selected [SSL]
xrdp[1389]: [INFO ] Connected client computer name: <remotename>
xrdp[1389]: [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type 0xc006 is unknown (ignored)
xrdp[1389]: [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type 0xc00a is unknown (ignored)
xrdp[1389]: [INFO ] xrdp_load_keyboard_layout: Keyboard information sent by the RDP client, keyboard_type:[0x04], keyboard_subtype:[0x00], keylayout:[0x00000409]
xrdp[1389]: [INFO ] xrdp_load_keyboard_layout: model [] variant [] layout [us] options []
xrdp[1389]: [INFO ] TLS connection established from ::ffff:192.168.1.211 port 47368: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
xrdp[1389]: [INFO ] xrdp_caps_process_pointer: client supports new(color) cursor
xrdp[1389]: [INFO ] xrdp_process_offscreen_bmpcache: support level 1 cache size 7864320 MB cache entries 2000
xrdp[1389]: [INFO ] xrdp_caps_process_codecs: RemoteFX, codec id 3, properties len 49
xrdp[1389]: [WARN ] Client Capability: not enough orders supported by client, client wants off screen bitmap but offscreen bitmaps disabled
xrdp[1389]: [INFO ] Loading keymap file /etc/xrdp/km-00000409.ini
xrdp[1389]: [WARN ] local keymap file for 0x00000409 found and doesn't match built in keymap, using local keymap file
xrdp[1389]: [INFO ] connecting to sesman on 127.0.0.1:3350
xrdp[1389]: [INFO ] xrdp_wm_log_msg: sesman connect ok
xrdp[1389]: [INFO ] sesman connect ok
xrdp[1389]: [INFO ] sending login info to session manager. Please wait...
xrdp[1389]: [INFO ] xrdp_wm_log_msg: login successful for user <username> on display 10
xrdp[1389]: [INFO ] login successful for user <username> on display 10
xrdp[1389]: [INFO ] loaded module 'libxup.so' ok, interface size 10296, version 4
xrdp[1389]: [INFO ] started connecting
xrdp[1389]: [INFO ] lib_mod_connect: connecting via UNIX socket
xrdp[1389]: [INFO ] lib_mod_log_peer: xrdp_pid=1389 connected to X11rdp_pid=804 X11rdp_uid=1000 X11rdp_gid=1000 client_ip=::ffff:192.168.1.211 client_port=47368
xrdp[1389]: [INFO ] connected ok
xrdp[614]: [INFO ] Socket 12: AF_INET6 connection received from ::ffff:192.168.1.211 port 34404
xrdp[1426]: [INFO ] Security protocol: configured [SSL|RDP], requested [SSL|HYBRID|RDP], selected [SSL]
xrdp[1426]: [INFO ] Connected client computer name: <remotename>
xrdp[1426]: [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type 0xc006 is unknown (ignored)
xrdp[1426]: [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type 0xc00a is unknown (ignored)
xrdp[1426]: [INFO ] xrdp_load_keyboard_layout: Keyboard information sent by the RDP client, keyboard_type:[0x04], keyboard_subtype:[0x00], keylayout:[0x00000409]
xrdp[1426]: [INFO ] xrdp_load_keyboard_layout: model [] variant [] layout [us] options []
xrdp[1426]: [INFO ] TLS connection established from ::ffff:192.168.1.211 port 34404: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
xrdp[1426]: [INFO ] xrdp_caps_process_pointer: client supports new(color) cursor
xrdp[1426]: [INFO ] xrdp_process_offscreen_bmpcache: support level 1 cache size 7864320 MB cache entries 2000
xrdp[1426]: [INFO ] xrdp_caps_process_codecs: RemoteFX, codec id 3, properties len 49
xrdp[1426]: [WARN ] Client Capability: not enough orders supported by client, client wants off screen bitmap but offscreen bitmaps disabled
xrdp[1426]: [INFO ] Loading keymap file /etc/xrdp/km-00000409.ini
xrdp[1426]: [WARN ] local keymap file for 0x00000409 found and doesn't match built in keymap, using local keymap file
xrdp[1426]: [INFO ] connecting to sesman on 127.0.0.1:3350
xrdp[1426]: [INFO ] xrdp_wm_log_msg: sesman connect ok
xrdp[1426]: [INFO ] sesman connect ok
xrdp[1426]: [INFO ] sending login info to session manager. Please wait...
xrdp[1426]: [INFO ] xrdp_wm_log_msg: login successful for user <username> on display 10
xrdp[1426]: [INFO ] login successful for user <username> on display 10
xrdp[1426]: [INFO ] loaded module 'libxup.so' ok, interface size 10296, version 4
xrdp[1426]: [INFO ] started connecting
xrdp[1426]: [INFO ] lib_mod_connect: connecting via UNIX socket
xrdp[1426]: [INFO ] lib_mod_log_peer: xrdp_pid=1426 connected to X11rdp_pid=1430 X11rdp_uid=1000 X11rdp_gid=1000 client_ip=::ffff:192.168.1.211 client_port=34404
xrdp[1426]: [INFO ] connected ok
xrdp[1426]: [INFO ] xrdp_caps_process_pointer: client supports new(color) cursor
xrdp[1426]: [INFO ] xrdp_process_offscreen_bmpcache: support level 1 cache size 7864320 MB cache entries 2000
xrdp[1426]: [INFO ] xrdp_caps_process_codecs: RemoteFX, codec id 3, properties len 49
xrdp[1426]: [WARN ] Client Capability: not enough orders supported by client, client wants off screen bitmap but offscreen bitmaps disabled
xrdp[1426]: [INFO ] xrdp_caps_process_pointer: client supports new(color) cursor
xrdp[1426]: [INFO ] xrdp_process_offscreen_bmpcache: support level 1 cache size 7864320 MB cache entries 2000
xrdp[1426]: [INFO ] xrdp_caps_process_codecs: RemoteFX, codec id 3, properties len 49
xrdp[1426]: [WARN ] Client Capability: not enough orders supported by client, client wants off screen bitmap but offscreen bitmaps disabled

Answered by matt335672

May 10, 2023

Interesting problem.

It sounds a bit like a race condition.

Maybe GNOME is expecting a systemd-based service to be available which isn't in a good state (this shouldn't happen). Try adding a sleep 2 to /etc/xrdp/startwm.sh.

View full answer

matt335672 · 2023-05-10T08:54:28Z

matt335672
May 10, 2023
Collaborator

Interesting problem.

It sounds a bit like a race condition.

Maybe GNOME is expecting a systemd-based service to be available which isn't in a good state (this shouldn't happen). Try adding a sleep 2 to /etc/xrdp/startwm.sh.

5 replies

HubKing May 10, 2023
Author

I added the following line, and it seems to fix the problem.

HubKing May 10, 2023
Author

Maybe, this is because I have disabled automatic start of GDM (I don't remember the name exactly, because I had set it up a year ago, but something about the GUI session), because it is a headless server, and I only connect it to over XRDP when I need to run some GUI apps on it.

matt335672 May 10, 2023
Collaborator

Possibly.

If GDM is disabled, you may have problems locking and unlocking GNOME sessions. You might want to test that.

Instead of sleep 2 you could try this:-

while ! systemctl --user is-active dbus.service --quiet; do
   sleep 0.5
done

If I've got it right, that will wait for the DBUS service to come up, which may be sufficient for GNOME.

HubKing May 10, 2023
Author

I edited it like below, and Remmina showed only a black screen. I reverted it back to just sleep 1 (reduced it from 2 to 1), and it worked again.

matt335672 May 10, 2023
Collaborator

It may be the X server instead - see #2492.

We've fixed that in devel, but that's not ready for release yet. Possible best to stick with the sleep I'm afraid.

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First connection always show Gnome's "Oh no, something wrong" #2660

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First connection always show Gnome's "Oh no, something wrong" #2660

HubKing May 10, 2023

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