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vncグレー画面（16.04、tightvnc、xfce4）：解決済み

私はvncを長年使用していますが、なぜこれが時々起こるのか分かりません。新しいutuntu 16.04マシンで、最初にvinoを使用してみましたが、うまく動作しますが、かなり遅いと判断したため、ウィンドウマネージャーxfce4でtightvncを使用することにしました。しかし、私はこの「灰色の画面」（数回前にそれを経験しました..）を再び取得します。
私のxstartupは次のとおりです。

#!/bin/sh

xrdb $HOME/.Xresources
xsetroot -solid grey
startxfce4 &

ログファイルは次のとおりです。

24/08/18 09:47:09 Xvnc version TightVNC-1.3.10
24/08/18 09:47:09 Copyright (C) 2000-2009 TightVNC Group
24/08/18 09:47:09 Copyright (C) 1999 AT&T Laboratories Cambridge
24/08/18 09:47:09 All Rights Reserved.
24/08/18 09:47:09 See http://www.tightvnc.com/ for information on TightVNC
24/08/18 09:47:09 Desktop name 'X' (kimchan:1)
24/08/18 09:47:09 Protocol versions supported: 3.3, 3.7, 3.8, 3.7t, 3.8t
24/08/18 09:47:09 Listening for VNC connections on TCP port 5901
Font directory '/usr/share/fonts/X11/75dpi/' not found - ignoring
Font directory '/usr/share/fonts/X11/100dpi/' not found - ignoring
/usr/bin/startxfce4: X server already running on display :1
Xlib:  extension "RANDR" missing on display ":1".
xfce4-session: Another session manager is already running

24/08/18 09:48:08 Got connection from client 129.254.132.39
24/08/18 09:48:08 Using protocol version 3.8
24/08/18 09:48:12 Full-control authentication passed by 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 16
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 22
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 21
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 15
24/08/18 09:48:12 Using zlib encoding for client 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding -314
24/08/18 09:48:12 Enabling full-color cursor updates for client 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding -223
24/08/18 09:48:12 Pixel format for client 129.254.132.39:
24/08/18 09:48:12   32 bpp, depth 24, little endian
24/08/18 09:48:12   true colour: max r 255 g 255 b 255, shift r 16 g 8 b 0
24/08/18 09:48:12   no translation needed
24/08/18 09:48:12 Using raw encoding for client 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 22
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 21
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 16
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 15
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding -314
24/08/18 09:48:12 Enabling full-color cursor updates for client 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding -223
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 16
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 22
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 21
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding 15
24/08/18 09:48:12 Using zlib encoding for client 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding -314
24/08/18 09:48:12 Enabling full-color cursor updates for client 129.254.132.39
24/08/18 09:48:12 rfbProcessClientNormalMessage: ignoring unknown encoding -223

ここで何が間違っていますか？ X server already running on display :1とエラーですか？そして、表示されるRANDRがどれほど不足していますか？そして、それらの多くのignoring unkonwn encodingメッセージは何ですか？感謝します。ありがとう！

16.04xfcevnctightvncserver
3
Chan Kim

見つけました https://bbs.archlinux.org/viewtopic.php?id=180965

xstartupを

#!/bin/sh
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
startxfce4 &

そしてそれは動作します！

3
Chan Kim