Application: kwin (4.8.4 (4.8.4)) KDE Platform Version: 4.8.4 (4.8.4) Qt Version: 4.8.1 Operating System: Linux 3.2.0-30-generic x86_64 Distribution: Ubuntu 12.04.1 LTS -- Information about the crash: - What I was doing when the application crashed: I just rebooted after regular upgrade when KWin greeted me with a trace. -- Backtrace: Application: KWin (kwin), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [KCrash Handler] #6 0x00007fc166900100 in xcb_glx_query_server_string_string_length () from /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 #7 0x00007fc16e900444 in __glXQueryServerString (dpy=<optimized out>, opcode=<optimized out>, screen=0, name=2) at glx_query.c:58 #8 0x00007fc16e8e0348 in AllocAndFetchScreenConfigs (priv=0x23ba5f0, dpy=0x231fae0) at glxext.c:770 #9 __glXInitialize (dpy=0x231fae0) at glxext.c:885 #10 __glXInitialize (dpy=0x231fae0) at glxext.c:803 #11 0x00007fc16e8dc069 in glXQueryVersion (dpy=<optimized out>, major=0x7fffdc4b86c4, minor=0x7fffdc4b86c8) at glxcmds.c:438 #12 0x00007fc1729f15bd in KWin::CompositingPrefs::detect (this=0x7fffdc4b87b0) at ../../kwin/compositingprefs.cpp:204 #13 0x00007fc17297a64b in KWin::Options::reloadCompositingSettings (this=0x2487cd0, force=<optimized out>) at ../../kwin/options.cpp:313 #14 0x00007fc17297f0a4 in KWin::Options::updateSettings (this=0x2487cd0) at ../../kwin/options.cpp:256 #15 0x00007fc172977b66 in KWin::Application::Application (this=0x7fffdc4b9c50) at ../../kwin/main.cpp:319 #16 0x00007fc17297988c in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:511 #17 0x00007fc17257d76d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=3, ubp_av=0x7fffdc4ba378, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffdc4ba368) at libc-start.c:226 #18 0x0000000000400671 in _start () Possible duplicates by query: bug 229796. Reported using DrKonqi
> #11 0x00007fc16e8dc069 in glXQueryVersion driver bug. What hardware do you use? (GPU, intel, amd/ati, nvidia etc.)
I'm using an Asus HD 6670 card, with the proprietary driver.
If the problem remains, try "KWIN_DIRECT_GL=1 kwin --replace &" if this works you can add a script: -------- snip force_dri.sh ------------ #!/bin/sh export KWIN_DIRECT_GL=1 -------- /snip ------------------ into ~/.kde/env (without the "snip" lines and make the script executable "chmod +x ~/.kde/env/force_dri.sh") Recent version will use direct rendering with recent fglrx versions
Thank you. I wouldn't use the proprietary driver, if the native would work.
*** This bug has been marked as a duplicate of bug 229796 ***