Application: kwin (4.6.00 (4.6.0) "release 6") KDE Platform Version: 4.6.00 (4.6.0) "release 6" Qt Version: 4.7.1 Operating System: Linux 2.6.37.6-0.7-desktop x86_64 Distribution: "openSUSE 11.4 (x86_64)" -- Information about the crash: - Unusual behavior I noticed: -before crash - system work very slowly -in a system tray show messages "Operation complete" however in this time no one Operation do not The crash can be reproduced every time. -- Backtrace: Application: KWin (kwin), signal: Aborted [Current thread is 1 (Thread 0x7f46aac067a0 (LWP 2386))] Thread 2 (Thread 0x7f4690280700 (LWP 2393)): #0 0x00007f46a645b38c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f46a92df044 in ?? () from /usr/lib64/libQtScript.so.4 #2 0x00007f46a92df079 in ?? () from /usr/lib64/libQtScript.so.4 #3 0x00007f46a6456a3f in start_thread () from /lib64/libpthread.so.0 #4 0x00007f46aa47167d in clone () from /lib64/libc.so.6 #5 0x0000000000000000 in ?? () Thread 1 (Thread 0x7f46aac067a0 (LWP 2386)): [KCrash Handler] #6 0x00007f46aa3d0ab5 in raise () from /lib64/libc.so.6 #7 0x00007f46aa3d1fb6 in abort () from /lib64/libc.so.6 #8 0x00007f46a5569a9d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib64/libstdc++.so.6 #9 0x00007f46a5567cb6 in ?? () from /usr/lib64/libstdc++.so.6 #10 0x00007f46a5567ce3 in std::terminate() () from /usr/lib64/libstdc++.so.6 #11 0x00007f46a5567e36 in __cxa_rethrow () from /usr/lib64/libstdc++.so.6 #12 0x00007f46a67ce333 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4 #13 0x00007f46a67d26ab in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4 #14 0x00007f46aa766c8a in kdemain () from /usr/lib64/libkdeinit4_kwin.so #15 0x00007f46aa3bcbfd in __libc_start_main () from /lib64/libc.so.6 #16 0x0000000000400699 in _start () Possible duplicates by query: bug 281753, bug 281685, bug 281662, bug 281596, bug 281581. Reported using DrKonqi
This is very likely bug #241163 - do you have an nvidia GPU? To workaround: set the scale method to "smooth" ("kcmshell4 kwincompositing" / "Advanced" tab) Recent versions of kwin shouldn't show this anymore *** This bug has been marked as a duplicate of bug 241163 ***
Nvidia GPU was installed by OneClickInstall method. And one else. on hard disk i have two system-open suse and windows 7. system starting from Grub loader. loader has a timer which loads system by default (opensuse) if the choice between operation systems is not made. In this case plasma all time crash. If the choice is made, plasma crash with probability 50%. I do not know how these two events are connected.
It's a bug in combination between the nvidia driver (on some GPUs) and kwin. -> Using "smooth" instead of "accurate" scaling will prevent the crash. Since the return value is probably stored in the chip, it might be set differently/randomly. No idea. Doesn't matter either since recent version of kwin have a sanity check on the value.