xrdp: Arch Linux : Can't start Xorg X server

i have install xrdp and xrdp-sesman, they can start ,but have some problems.My system is archlinux Kernel: 5.17.5 here is the xrdp service

sudo systemctl status xrdp|cat

● xrdp.service - xrdp daemon
     Loaded: loaded (/usr/lib/systemd/system/xrdp.service; enabled; vendor preset: disabled)
     Active: active (running) since Fri 2022-05-06 14:58:20 CST; 2min 3s ago
       Docs: man:xrdp(8)
             man:xrdp.ini(5)
    Process: 109697 ExecStart=/usr/local/sbin/xrdp $XRDP_OPTIONS (code=exited, status=0/SUCCESS)
   Main PID: 109698 (xrdp)
      Tasks: 1 (limit: 38340)
     Memory: 872.0K
        CPU: 4ms
     CGroup: /system.slice/xrdp.service
             └─ 109698 /usr/local/sbin/xrdp

May 06 14:58:19 nian systemd[1]: Starting xrdp daemon...
May 06 14:58:19 nian xrdp[109697]: [INFO ] address [0.0.0.0] port [3389] mode 1
May 06 14:58:19 nian xrdp[109697]: [INFO ] listening to port 3389 on 0.0.0.0
May 06 14:58:19 nian xrdp[109697]: [INFO ] xrdp_listen_pp done
May 06 14:58:19 nian systemd[1]: xrdp.service: Can't open PID file /run/xrdp.pid (yet?) after start: Operation not permitted
May 06 14:58:20 nian systemd[1]: Started xrdp daemon.
May 06 14:58:21 nian xrdp[109698]: [INFO ] starting xrdp with pid 109698
May 06 14:58:21 nian xrdp[109698]: [INFO ] address [0.0.0.0] port [3389] mode 1
May 06 14:58:21 nian xrdp[109698]: [INFO ] listening to port 3389 on 0.0.0.0
May 06 14:58:21 nian xrdp[109698]: [INFO ] xrdp_listen_pp done

here is the xrdp-sesman service

sudo systemctl status xrdp-sesman.service|cat
● xrdp-sesman.service - xrdp session manager
     Loaded: loaded (/usr/lib/systemd/system/xrdp-sesman.service; enabled; vendor preset: disabled)
     Active: active (running) since Fri 2022-05-06 14:58:19 CST; 7min ago
       Docs: man:xrdp-sesman(8)
             man:sesman.ini(5)
    Process: 109695 ExecStart=/usr/local/sbin/xrdp-sesman $SESMAN_OPTIONS (code=exited, status=0/SUCCESS)
   Main PID: 109696 (xrdp-sesman)
      Tasks: 1 (limit: 38340)
     Memory: 828.0K
        CPU: 3ms
     CGroup: /system.slice/xrdp-sesman.service
             └─ 109696 /usr/local/sbin/xrdp-sesman

May 06 14:58:19 nian systemd[1]: Starting xrdp session manager...
May 06 14:58:19 nian xrdp-sesman[109696]: [INFO ] starting xrdp-sesman with pid 109696
May 06 14:58:19 nian systemd[1]: Started xrdp session manager.
May 06 14:58:19 nian xrdp-sesman[109696]: [INFO ] Sesman now listening on /var/run/xrdp-sesman/sesman.socket

xrdp.log

[20220506-15:06:48] [INFO ] Socket 12: AF_INET connection received f
rom 192.168.1.23 port 47758
[20220506-15:06:48] [INFO ] Using default X.509 certificate: /etc/xr
dp/cert.pem
[20220506-15:06:48] [INFO ] Using default X.509 key file: /etc/xrdp/
key.pem
[20220506-15:06:48] [INFO ] Security protocol: configured [SSL|RDP],
 requested [SSL|HYBRID|RDP], selected [SSL]
[20220506-15:06:48] [INFO ] Connected client computer name: nian
[20220506-15:06:48] [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type
0xc006 is unknown (ignored)
[20220506-15:06:48] [WARN ] Received [MS-RDPBCGR] TS_UD_HEADER type
0xc00a is unknown (ignored)
[20220506-15:06:49] [INFO ] xrdp_load_keyboard_layout: Keyboard info
rmation sent by the RDP client, keyboard_type:[0x04], keyboard_subty
pe:[0x00], keylayout:[0x00000409]
[20220506-15:06:49] [INFO ] xrdp_load_keyboard_layout: model [] vari
ant [] layout [us] options []
[20220506-15:06:49] [INFO ] TLS connection established from 192.168.
1.23 port 47758: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
[20220506-15:06:49] [INFO ] xrdp_caps_process_pointer: client suppor
ts new(color) cursor
[20220506-15:06:49] [INFO ] xrdp_process_offscreen_bmpcache: support
 level 1 cache size 7864320 MB cache entries 2000
[20220506-15:06:49] [INFO ] xrdp_caps_process_codecs: RemoteFX, code
c id 3, properties len 49
[20220506-15:06:49] [WARN ] Client Capability: not enough orders sup
ported by client, client wants off screen bitmap but offscreen bitma
ps disabled
[20220506-15:06:49] [INFO ] Loading keymap file /etc/xrdp/km-0000040
9.ini
[20220506-15:06:49] [WARN ] local keymap file for 0x00000409 found a
nd doesn't match built in keymap, using local keymap file
[20220506-15:06:55] [INFO ] connecting to sesman on sesman.socket
[20220506-15:06:55] [WARN ] Ignoring obsolete SCP port value '3350'
[20220506-15:06:55] [INFO ] xrdp_wm_log_msg: sesman connect ok
[20220506-15:06:55] [INFO ] sesman connect ok
[20220506-15:06:55] [INFO ] sending login info to session manager. P
lease wait...
[20220506-15:06:55] [INFO ] xrdp_wm_log_msg: login successful for us
er nian on display 10
[20220506-15:06:55] [INFO ] login successful for user nian on displa
y 10
[20220506-15:06:55] [INFO ] loaded module 'libxup.so' ok, interface
size 11064, version 4
[20220506-15:06:55] [INFO ] started connecting
[20220506-15:06:55] [INFO ] lib_mod_connect: connecting via UNIX soc
ket
[20220506-15:07:25] [INFO ] connection problem, giving up
[20220506-15:07:25] [INFO ] some problem
[20220506-15:07:25] [ERROR] xrdp_wm_log_msg: Error connecting to use
r session
[20220506-15:07:25] [INFO ] Error connecting to user session

xrdp-sesman.log

[20220506-15:06:55] [INFO ] Socket 13: AF_UNIX connection received
[20220506-15:06:55] [INFO ] Received request to create Xorg session
for user: nian
[20220506-15:06:55] [INFO ] Terminal Server Users group is disabled,
 allowing authentication
[20220506-15:06:55] [INFO ] ++ created session (access granted): use
rname nian, ip 192.168.1.23:47758 - socket: 12
[20220506-15:06:55] [INFO ] Starting session: session_pid 110140, di
splay :10.0, width 2516, height 1320, bpp 24, client ip 192.168.1.23
:47758 - socket: 12, user name nian
[20220506-15:06:55] [INFO ] [session start] (display 10): calling au
th_start_session from pid 110140
[20220506-15:06:55] [INFO ] Starting X server on display 10: Xorg :1
0 -auth .Xauthority -config xrdp/xorg.conf -noreset -nolisten tcp -l
ogfile .xorgxrdp.%s.log
[20220506-15:07:04] [WARN ] Timed out waiting for X server on displa
y 10 to startup
[20220506-15:07:04] [INFO ] Session started successfully for user ni
an on display 10
[20220506-15:07:04] [INFO ] Session in progress on display 10, waiti
ng until the window manager (pid 110141) exits to end the session
[20220506-15:07:04] [INFO ] Starting the xrdp channel server for dis
play 10
[20220506-15:07:05] [WARN ] Timed out waiting for X server on displa
y 10 to startup
[20220506-15:07:05] [ERROR] There is no X server active on display 1
0
[20220506-15:07:05] [ERROR] A fatal error has occured attempting to
start the window manager on display 10, aborting connection
[20220506-15:07:05] [WARN ] Window manager (pid 110141, display 10)
exited quickly (1 secs). This could indicate a window manager config
 problem
[20220506-15:07:05] [INFO ] Calling auth_stop_session and auth_end f
rom pid 110140
[20220506-15:07:05] [INFO ] Terminating X server (pid 110142) on dis
play 10
[20220506-15:07:05] [INFO ] Terminating the xrdp channel server (pid
 110146) on display 10
[20220506-15:07:05] [INFO ] X server on display 10 (pid 110142) retu
rned exit code 1 and signal number 0
[20220506-15:07:05] [INFO ] xrdp channel server for display 10 (pid
110146) exit code 0 and signal number 0
[20220506-15:07:05] [INFO ] cleanup_sockets:
[20220506-15:07:05] [INFO ] Process 110140 has exited
[20220506-15:07:05] [INFO ] ++ terminated session:  username nian, d
isplay :10.0, session_pid 110140, ip 192.168.1.23:47758 - socket: 12
[20220506-15:07:25] [ERROR] sesman_main_loop: trans_check_wait_objs
failed, removing trans

cat /home/nian/.xinitrc

#!/bin/bash
#
# ~/.xinitrc
#
# Executed by startx (run your window manager from here)

userresources=$HOME/.Xresources
usermodmap=$HOME/.Xmodmap
sysresources=/etc/X11/xinit/.Xresources
sysmodmap=/etc/X11/xinit/.Xmodmap

DEFAULT_SESSION=startplasma-x11

# merge in defaults and keymaps

if [ -f $sysresources ]; then
    xrdb -merge $sysresources
fi

if [ -f $sysmodmap ]; then
    xmodmap $sysmodmap
fi

if [ -f "$userresources" ]; then
    xrdb -merge "$userresources"
fi

if [ -f "$usermodmap" ]; then
    xmodmap "$usermodmap"
fi

# start some nice programs

if [ -d /etc/X11/xinit/xinitrc.d ] ; then
    for f in /etc/X11/xinit/xinitrc.d/?*.sh ; do
        [ -x "$f" ] && . "$f"
    done
    unset f
fi

get_session(){
    local dbus_args=(--sh-syntax)
    case $1 in
        awesome) dbus_args+=(awesome) ;;
        bspwm) dbus_args+=(bspwm-session) ;;
        budgie) dbus_args+=(budgie-desktop) ;;
        cinnamon) dbus_args+=(cinnamon-session) ;;
        deepin) dbus_args+=(startdde) ;;
        enlightenment) dbus_args+=(enlightenment_start) ;;
        fluxbox) dbus_args+=(startfluxbox) ;;
        gnome) dbus_args+=(gnome-session) ;;
        i3|i3wm) dbus_args+=(i3 --shmlog-size 0) ;;
        jwm) dbus_args+=(jwm) ;;
        kde) dbus_args+=(startplasma-x11) ;;
        lxde) dbus_args+=(startlxde) ;;
        lxqt) dbus_args+=(lxqt-session) ;;
        mate) dbus_args+=(mate-session) ;;
        xfce) dbus_args+=(xfce4-session) ;;
        openbox) dbus_args+=(openbox-session) ;;
        *) dbus_args+=($DEFAULT_SESSION) ;;
    esac

    echo "dbus-launch ${dbus_args[*]}"
}

exec $(get_session "$1")