My plasma desktop environment worked very well before I installed
kdm display manager.But after I installed the
kdm and reboot my laptop, Gentoo booted into a black screen with a white checkbox, which was saying
Could not start kdeinit5, Check your installation.
Then I clicked the
okay button. It dropped down into the tty with some error messages.
xauth: file /root/.serverauth.8002 does not exist X.Org X Server 1.18.4 Release Date: 2016-7-19 X Protocol Version 11: Revision 0 Build Operatin System: Linux 4.4.39-gentoo #1 SMP Fri Jan 13 20:24:54 CST 2017 x86_64 Kernel command line: BOOT_IMAGE=/boot/kernel-genkernel-x86_64-4.4.39-gentoo root=/dev/sda2 rootfstype=ext4 Build Date: 13 January 2017 11:03:46PM Current version of pixman: 0.34.0 Before reporting problems., check http://wiki.x.org to make sure that you have the latest version. (==) Log File: "/var/log/Xorg.0.log", Time: Sat Jan 20 21:12:01 2017 (==) Using config directory "/etc/X11/xorg.conf.d" (==) Using system config directory "/usr/share/X11/xorg.conf.d" The application failed to start because it could not find not find or load the Qt platform plugin "xcd" in "" Available platform plugins are: wayland-org.kde.kwin.qpa, minimal, offscreen, wayland, xcb. Reinstalling the application may finx this problem. startkde: Starting up... /usr/bin/kdeinit5: relocation error: /usr/lib64/libQt5Gui.so.5: symbol _Z10qAllocMoreii, version Qt_5 not defined in file libQt5Core.so.5 with link time reference. startkde: Could not start kdeinit5. Check your installation. xinit: connection to X server lost. waiting for X server to shut down (II) Server terminated successfully (0). Closing log file.
However, it works pretty well before I installed
kdm. I don't know why it crashed after I had installed
I also had found some advice from the Internet and tried. But those all didn't work. Can anyone give some solutions or some clues? My environment is:
plasma version is: plasma-5.26.0
kdm version is: kde-plasma/kdm-4.11.22
kernel version is 4.4.39