Version: 4.5 (using KDE 4.5.4) OS: Linux OpenSUSE 11.3 running KDE 4.5.3 (from openSUSE Buildservice stable tree, http://download.opensuse.org/repositories/KDE:/Release:/45/openSUSE_11.3/ without problems. after upgrade to 4.5.4 using zypper dup, a black screen appears after login, with only the mouse cursor visible. right mouse button shows a light-black frame without content. only crtl-alt-backspace helps. No work possible Reproducible: Always Steps to Reproduce: log in.
PS. Using a different window manager like iceWM works, it can start KDE programs as well. KDM problem?
> rpm -q --requires libkdecore4 | grep liblzma.so.5 liblzma.so.5 > rpm -ql liblzma5 /lib/liblzma.so.5 /lib/liblzma.so.5.0.0 http://download.opensuse.org/repositories/devel:/tools:/building/openSUSE_11.3/
Please check in /var/log/zypp/history if your update installed any other new packages, or just KDE.
@Hans-Rudi: Indeed, liblzma.so.5 was not installed, and installing it did not fix the problem.
Created attachment 54061 [details] Todays change history
I forced the installation of libkdecore4 with the missing dependency (risky!) > rpm -q libkdecore4 libkdecore4-4.5.80-341.4.i586 without the repository in Comment #2. Then I couldn't even start any desktop, just a flickering screen. So I entered '3' at the boot prompt to run runlevel 3. I manually changed the name of liblzma.so.0 to liblzma.so.5 to fix the required missing dependency. Now I could start KDE again but couldn't start the yast software installation module sw_single. Then I manually downloaded liblzma5-5.0.0-12.1.i586.rpm. I restarted again to runlevel 3 and logged in as root. # cd /lib/ # dir liblzma.so.5 # mv liblzma.so.{5,0} (revert the dirty trick) # cd /home/user/Downloads/ # rpm -i liblzma5-5.0.0-12.1.i586.rpm (install the missing dependency) > dir /lib/liblzma* lrwxrwxrwx 1 root root 16 14. Nov 2009 /lib/liblzma.so.0 -> liblzma.so.0.0.0 -rwxr-xr-x 1 root root 145024 24. Okt 2009 /lib/liblzma.so.0.0.0 lrwxrwxrwx 1 root root 16 3. Dez 17:17 /lib/liblzma.so.5 -> liblzma.so.5.0.0 -rwxr-xr-x 1 root root 160663 29. Nov 14:01 /lib/liblzma.so.5.0.0 If I grep for liblzma in zypp history > grep liblzma /var/log/zypp/history 2009-11-02 20:27:06|install|liblzma0|4.999.9beta-2.2|i586|root@opensuse|InstallationImage|... liblzma5 doesn't show up because I don't have the repository in Comment #2 installed. So that was my journey. Nothing wrong anymore !
Created attachment 54085 [details] #yast2 sw_single Start a non KDE session manager and from a terminal as root 'yast2 sw_single'. Check dependencies 'Abhängigkeiten' > Check now. The context menu might help you also.
Hans-Rudi, thanks for your explanation, but this was not the problem in my case. I assume the KDM or Plasma has a problem with the radeonhd-driver, which was installed for the ATI RADEON HD 4550 card. I installed the ATI legacy drivers (ati-driver-installer-10-11-x86.x86_64.run), and afterwards it worked. Normally I dont like the legacy drivers, as you have to recompile them after every kernel change - the ATI-repo is mostly not up to date and has often caused errors. So, from this perspective, I have a workaround and can work again. But the original problem is not solved with this.
I can confirm the black screen after upgrading to KDE 4.5.4 In my case, I could solve it choosing IceVM as a login wm and disabling "desktop effects" in "system preferences". I can now login in KDE, but I can't enable desktop effects. I don't know if this can be considered "a fix", though :-)
(In reply to comment #9) Only to add that when I try to enable "desktop effects" I get the "black screen of (KDE)death" again :-) I have openSUSE 11.2, with an ATI card and the radeonhd driver.
I have this black screen problem now after upgrading to Ubuntu 11.04 and KDE 4.6.2 All of the KDE programs work normally, if I log in to a different desktop environment, like XFCE, but when starting a KDE session, all I get is a black screen and the cursor. I've tried going in to the KDE system settings from the XFCE session and disabling effects, but I still get only a black screen when logging in to KDE.
I was able to resolve my problem. The upgrade to Ubuntu 11.04 did not install the "plasma-desktop" package. Once I installed that I was able to log in to KDE. I still needed to log in to a different type of session first and disable all display effects before I could get in to KDE, but at least I can log in to KDE now.
Feel free to reopen the report if the problem still happens in recent versions ( KDE SC 4.8.4 or higher). Thanks.