gnome-fallback.desktop是否需要13.10中的加速图形？

我试图gnome-fallback.desktop在VncServer下运行。

升级到13.10后，我的VNC不再起作用-它仅显示一个空的终端窗口，没有会话。

这些是我已安装的会话：

$ ls /usr/share/xsessions/
gnome.desktop                  gnome-fallback.desktop  xfce.desktop
gnome-fallback-compiz.desktop  ubuntu.desktop

这是我的~/.vnc/xstartup文件的内容，gnome-fallback.desktop据我所知，它的指向：

#!/bin/sh

# Uncomment the following two lines for normal desktop:
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS
# exec /etc/X11/xinit/xinitrc
gnome-session --session=gnome-fallback.desktop &
#gnome-session --session=gdm-session &

[ -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" &
x-window-manager &

这是日志文件的输出~/.vnc/：

Xvnc Free Edition 4.1.1 - built Jan 14 2013 22:28:40
Copyright (C) 2002-2005 RealVNC Ltd.
See http://www.realvnc.com for information on VNC.
Underlying X server release 40300000, The XFree86 Project, Inc


Sat Oct 19 17:37:51 2013
 vncext:      VNC extension running!
 vncext:      Listening for VNC connections on port 5901
 vncext:      created VNC server for screen 0
error opening security policy file /etc/X11/xserver/SecurityPolicy
Could not init font path element /usr/X11R6/lib/X11/fonts/Type1/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/Speedo/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/misc/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/75dpi/, removing from list!
Could not init font path element /usr/X11R6/lib/X11/fonts/100dpi/, removing from list!
Could not init font path element /usr/share/fonts/X11/75dpi/, removing from list!
Could not init font path element /usr/share/fonts/X11/100dpi/, removing from list!
Option "--login" is no longer supported in this version of gnome-terminal; you might want to create a profile with the desired setting, and use the new '--profile' option
gnome-session-is-accelerated: No composite extension.
gnome-session-check-accelerated: Helper exited with code 256
Window manager warning: Log level 32: could not find XKB extension.
gnome-session-is-accelerated: No composite extension.
gnome-session-check-accelerated: Helper exited with code 256

** (process:1602): WARNING **: software acceleration check failed: Child process exited with code 1

** (gnome-session:1602): CRITICAL **: We failed, but the fail whale is dead. Sorry....

看来gnome-fallback.desktop现在需要加速图形吗？它是否正确？

如果我手动启动gnome-session曾经启动过的东西，那是可以的。字体似乎没有设置。

〜/ .vnc / xstartup

#!/bin/sh

export XKL_XMODMAP_DISABLE=1
unset SESSION_MANAGER
unset DBUS_SESSION_BUS_ADDRESS

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

升级后，我遇到了完全相同的问题，我尝试搜索可能的解决方案，但找不到与软件加速问题有关的任何内容。

最后，我再也无法烦恼了，所以我选择了xfce4，现在它又可以正常工作了。

这是我的Xstartup：

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

我的猜测是gnome-fallback可能会损坏，并且默认情况下默认为gnome3，这实际上需要加速才能起作用。

希望这对您有帮助。

这是一个（非常令人失望的）侏儒问题。该问题已经存在一年多了，并且在14.04 LTS中仍然存在。

从此线程使用--disable-acceleration-check的解决方案对我不起作用。

https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1251281

是的，作为一种解决方法，xfce4或fluxbox（运行startfluxbox）将起作用。