ubuntu 20.04 LTC 默认桌面解决vnc灰屏

安装 tightvncserver

chmod +x ~/.vnc/xstartup 提高权限，
再更新一些必要软件sudo apt-get install gnome-panel gnome-settings-daemon metacity nautilus gnome-terminal
修改xstartup文件为

#!/bin/bash
export $(dbus-launch)  # 主要是这句
export XKL_XMODMAP_DISABLE=1
unset SESSION_MANAGER

gnome-panel &
gnome-settings-daemon &
metacity &
nautilus &
gnome-terminal &

# [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
# [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources

xsetroot -solid grey
vncconfig -iconic &
x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
gnome-session &

开启连接即可

若还不行，连上显示屏，在设置里打开屏幕共享

转载自https://blog.csdn.net/weixin_40364514/article/details/108466149

没有试过的一个解决方法

首先备份 vncserver 原配置文件后再修改

sudo cp  ~/.vnc/xstartup ~/.vnc/xstartup.bak
sudo vim ~/.vnc/xstartup

用以下内容替代：

#!/bin/sh                                                                       

unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
export XKL_XMODMAP_DISABLE=1
export XDG_CURRENT_DESKTOP="GNOME-Flashback:GNOME"
export XDG_MENU_PREFIX="gnome-flashback-"
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
#gnome-terminal &    
#nautilus &   
gnome-session --session=gnome-flashback-metacity --disable-acceleration-check &

开机自启

新建开机启动脚本，并赋予可执行权限

sudo vim  /etc/init.d/tightvncserver
sudo chmod +x tightvncserver

换成你自己的用户名

#!/bin/sh
### BEGIN INIT INFO
# Provides:          tightvncserver
# Required-Start:    $local_fs
# Required-Stop:     $local_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start/stop tightvncserver
### END INIT INFO

# More details see:
# http://www.penguintutor.com/linux/tightvnc

### Customize this entry
# Set the USER variable to the name of the user to start tightvncserver under
export USER='ensys'
### End customization required

eval cd ~$USER

case "$1" in
  start)
    # 启动命令行。此处自定义分辨率、控制台号码或其它参数。
    su $USER -c '/usr/bin/tightvncserver -depth 16 -geometry 1928x1080 -dpi 100 :1'
    echo "Starting TightVNC server for $USER "
    ;;
  stop)
    # 终止命令行。此处控制台号码与启动一致。
    su $USER -c '/usr/bin/tightvncserver -kill :1'
    echo "Tightvncserver stopped"
    ;;
  *)
    echo "Usage: /etc/init.d/tightvncserver {start|stop}"
    exit 1
    ;;
esac
exit 0

sudo update-rc.d /etc/init.d/tightvncserver defaults

转载自 https://blog.csdn.net/geeksoarsky/article/details/118345783?utm_medium=distribute.pc_relevant.none-task-blog-2_defaultbaidujs_title~default-0.control&spm=1001.2101.3001.4242