Xvnc cannot work

[freyone]

log info：

root@box:/usr/local/etc/init.d# Xvnc :1
07/02/17 13:11:13 Xvnc version TightVNC-1.3.9
07/02/17 13:11:13 Copyright (C) 2000-2007 TightVNC Group
07/02/17 13:11:13 Copyright (C) 1999 AT&T Laboratories Cambridge
07/02/17 13:11:13 All Rights Reserved.
07/02/17 13:11:13 See http://www.tightvnc.com/ for information on TightVNC
07/02/17 13:11:13 Desktop name 'x11' (box:1)
07/02/17 13:11:13 Protocol versions supported: 3.3, 3.7, 3.8, 3.7t, 3.8t
07/02/17 13:11:13 Listening for VNC connections on TCP port 5901
Font directory '/usr/lib/X11/fonts/Speedo/' not found - ignoring
Font directory '/usr/lib/X11/fonts/Type1/' not found - ignoring
Font directory '/usr/lib/X11/fonts/100dpi/' not found - ignoring

07/02/17 13:12:26 Got connection from client 135.251.10.46
07/02/17 13:12:26 Using protocol version 3.8
07/02/17 13:12:26 Pixel format for client 135.251.10.46:
07/02/17 13:12:26   8 bpp, depth 8
07/02/17 13:12:26   true colour: max r 3 g 3 b 3, shift r 4 g 2 b 0
07/02/17 13:12:26 Enabling full-color cursor updates for client 135.251.10.46
07/02/17 13:12:26 rfbProcessClientNormalMessage: ignoring unknown encoding -223
07/02/17 13:12:26 rfbProcessClientNormalMessage: ignoring unknown encoding 16
07/02/17 13:12:26 Using hextile encoding for client 135.251.10.46
07/02/17 13:12:26 Pixel format for client 135.251.10.46:
07/02/17 13:12:26   8 bpp, depth 8
07/02/17 13:12:26   true colour: max r 7 g 7 b 3, shift r 0 g 3 b 6
07/02/17 13:12:26   no translation needed
07/02/17 13:12:26 Enabling full-color cursor updates for client 135.251.10.46
07/02/17 13:12:26 rfbProcessClientNormalMessage: ignoring unknown encoding -223
07/02/17 13:12:26 Using hextile encoding for client 135.251.10.46
07/02/17 13:12:26 rfbProcessClientNormalMessage: ignoring unknown encoding 16

client is vnc-4_1_2-x86_win32_viewer.exe on windows 7

[curaga]

Enable a lower encoding in your VNC client?

[freyone]

i try all the four levels of client.all of them are the same result.
root@box:/usr/local/etc/init.d# uname -a
Linux box 4.2.9-tinycore #1999 SMP Mon Jan 18 19:42:12 UTC 2016 i686 GNU/Linux
root@box:/usr/local/etc/init.d#