本帖最后由 linflytang 于 2018-7-23 13:11 编辑

更新到最新测试版后，也就是上周五发的那个qt5.10测试版，，发现dde被卸载了，然后果断在终端下apt-get install dde，结果发现还是进不去图形界面。
看了下lightdm的x-0.log日志：
linfly@linfly-work:/var/log/lightdm$ sudo cat x-0.log
X.Org X Server 1.20.0
X Protocol Version 11, Revision 0
Build Operating System: Linux 4.9.0-6-amd64 x86_64 Debian
Current Operating System: Linux linfly-work 4.15.0-21deepin-generic #21 SMP Thu May 17 03:16:20 UTC 2018 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-21deepin-generic root=UUID=cd5bc9e9-4dec-44be-913c-4b4b87dcf7b7 ro splash quiet
Build Date: 24 May 2018  04:23:27PM
xorg-server 2:1.20.0-2 (https://www.debian.org/support)
Current version of pixman: 0.34.0
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Mon Jul 23 20:29:49 2018
(==) Using config directory: "/etc/X11/xorg.conf.d"
(==) Using system config directory "/usr/share/X11/xorg.conf.d"
/usr/lib/xorg/Xorg: symbol lookup error: /usr/lib/xorg/modules/drivers/fbdev_drv.so: undefined symbol: shadowUpdatePackedWeak


是红色这个库有问题么？lightdm和X11的配置，没有手动编辑过（后面还试着把lightdm和dde又用--purge参数重新卸载，再重装，还是没用）还有lightdm.log的日志：
linfly@linfly-work:/var/log/lightdm$ sudo cat lightdm.log
[+0.01s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.01s] DEBUG: Starting Light Display Manager 1.21.5, UID=0 PID=1124
[+0.01s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.01s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/01_debian.conf
[+0.01s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
[+0.01s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf
[+0.01s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf
[+0.01s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/60-deepin.conf
[+0.01s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.01s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.01s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.01s] DEBUG: Registered seat module local
[+0.01s] DEBUG: Registered seat module xremote
[+0.01s] DEBUG: Registered seat module unity
[+0.01s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.02s] DEBUG: Monitoring logind for seats
[+0.02s] DEBUG: New seat added from logind: seat0
[+0.02s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.02s] DEBUG: Seat seat0: Starting
[+0.02s] DEBUG: Seat seat0: Creating greeter session
[+0.59s] DEBUG: Seat seat0: Creating display server of type x
[+0.59s] DEBUG: Deactivating Plymouth
[+0.61s] DEBUG: Using VT 1
[+0.61s] DEBUG: Seat seat0: Starting local X display on VT 1
[+0.61s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.61s] DEBUG: XServer 0: Writing X server authority to /var/run/lightdm/root/:0
[+0.61s] DEBUG: XServer 0: Launching X Server
[+0.61s] DEBUG: Launching process 1308: /usr/bin/X -background none :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt1 -novtswitch
[+0.61s] DEBUG: XServer 0: Waiting for ready signal from X server :0
[+0.61s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.61s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+1.17s] DEBUG: Loading users from org.freedesktop.Accounts
[+1.17s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+17.30s] DEBUG: Process 1308 exited with return value 127
[+17.30s] DEBUG: XServer 0: X server stopped
[+17.30s] DEBUG: Releasing VT 1
[+17.30s] DEBUG: XServer 0: Removing X server authority /var/run/lightdm/root/:0
[+17.30s] DEBUG: Quitting Plymouth
[+17.60s] DEBUG: Seat seat0: Display server stopped
[+17.60s] DEBUG: Seat seat0: Stopping session
[+17.60s] DEBUG: Seat seat0: Session stopped
[+17.60s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+17.60s] DEBUG: Seat seat0: Stopping; greeter display server failed to start
[+17.60s] DEBUG: Seat seat0: Stopping
[+17.60s] DEBUG: Seat seat0: Stopped
[+17.60s] DEBUG: Required seat has stopped
[+17.60s] DEBUG: Stopping display manager
[+17.60s] DEBUG: Display manager stopped
[+17.60s] DEBUG: Stopping daemon
[+17.61s] DEBUG: Exiting with return value 1

=====已解决。仔细看了X的日志，发现没装nv驱动，O(∩_∩)O===============================