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无法在使用 NVidia 驱动程序的 Kubuntu 18 中切换用户

tag-icon • tag-icon nvidia kubuntu xorg kde
无法在使用 NVidia 驱动程序的 Kubuntu 18 中切换用户

到目前为止，在 Kubuntu 18 中按Alt+ Ctrl+L允许我在已登录用户之间切换。现在，在几天前安装 NVidia 驱动程序后，它停止工作并注销其他用户！

的对数cat ~/.xsession-errors为：

(...)
The X11 connection broke: I/O error (code 1)
XIO:  fatal IO error 11 (Zasoby chwilowo niedostępne) on X server ":0"
      after 86 requests (86 known processed) with 0 events remaining.
The X11 connection broke (error 1). Did the X11 server die?
kdeinit5: Fatal IO error: client killed
kdeinit5: sending SIGHUP to children.
The X11 connection broke (error 1). Did the X11 server die?
The X11 connection broke (error 1). Did the X11 server die?
klauncher: Exiting on signal 1
The X11 connection broke (error 1). Did the X11 server die?
kdeinit5: sending SIGTERM to children.
kdeinit5: Exit.
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
Qt: Dead lock detected while activating a BlockingQueuedConnection: Sender is QObject(0x55dd0c424b50), receiver is QDBusConnectionPrivate(0x7f435c004e80)
QSocketNotifier: Invalid socket 10 and type 'Read', disabling...
QSocketNotifier: Invalid socket 11 and type 'Read', disabling...
The X11 connection broke (error 1). Did the X11 server die?
The X11 connection broke: I/O error (code 1)
XIO:  fatal IO error 25 (Niewłaściwy ioctl dla urządzenia) on X server ":0"
      after 2096 requests (2096 known processed) with 0 events remaining.
Unexpected response from KInit (response = 0).
startkde: Could not start ksmserver. Check your installation.
Error: Can't open display: :0
The X11 connection broke (error 1). Did the X11 server die?
file:///usr/share/plasma/plasmoids/org.kde.plasma.clipboard/contents/ui/ClipboardPage.qml:107:26: Unable to assign [undefined] to QAbstractItemModel*
startkde: Shutting down...
kdeinit5_wrapper: Warning: connect(/run/user/1003/kdeinit5__0) failed: : No such file or directory
Error: Can not contact kdeinit5!
xprop:  unable to open display ':0'
xprop:  unable to open display ':0'
startkde: Done.

Nvidia 驱动版本：430，试过也还是390同样的问题。内核版本：4.15.0-55-generic。

卸载 Nvidia 驱动程序可以解决问题，但是 3D 游戏运行起来非常慢，所以这不是解决方案 :-(

答案1

经过长时间的搜索，以下内容对我有帮助：

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