Hi Colin, The "export LIBXCB_ALLOW_SLOPPY_LOCK=1" did nothing good (or bad) for me, but the "non-xcb" version of libx11 did fix all problems I have seen. Note that on Sept 9th I have sent Bryce and this list a minimal X11 test program (source & binary) to reproduce the problem. It should help to debug the problem and verify a solution.
Let me know if you haven't received the test program and I will send you a copy. Regards Tom --- On Thu, 11/9/08, Colin Watson <[EMAIL PROTECTED]> wrote: From: Colin Watson <[EMAIL PROTECTED]> Subject: [Bug 185311] Re: hardy, locking assertion failure, xorg/libsdl To: [EMAIL PROTECTED] Received: Thursday, 11 September, 2008, 1:56 AM Could those people reporting problems over the last half-dozen comments or so please confirm whether the workaround Bryce posted works? Many people have not mentioned this at all. export LIBXCB_ALLOW_SLOPPY_LOCK=1 (Note that of course this has to be run in a terminal before starting the application in question in the same terminal.) -- hardy, locking assertion failure, xorg/libsdl https://bugs.launchpad.net/bugs/185311 You received this bug notification because you are a direct subscriber of the bug. Status in Ubuntu Mobile Edition: Confirmed Status in X.Org X server: Confirmed Status in “libxcb” source package in Ubuntu: Triaged Status in “openoffice.org” source package in Ubuntu: Invalid Status in “pygtk” source package in Ubuntu: New Status in libxcb in Ubuntu Gutsy: Invalid Status in openoffice.org in Ubuntu Gutsy: Invalid Status in pygtk in Ubuntu Gutsy: New Status in libxcb in Ubuntu Hardy: Won't Fix Status in openoffice.org in Ubuntu Hardy: Invalid Status in pygtk in Ubuntu Hardy: New Status in libxcb in Ubuntu Intrepid: Triaged Status in openoffice.org in Ubuntu Intrepid: Invalid Status in pygtk in Ubuntu Intrepid: New Status in “libxcb” source package in Debian: Fix Released Status in “libxcb” source package in Mandriva: Confirmed Bug description: Binary package hint: xorg If I run Savage (a 3D non-open source game for Linux, available for download on the internet), I get loads of these messages: silverback.bin: ../../src/xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed. Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0xb6def767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb6def81e] #2 /usr/lib/libX11.so.6 [0xb76ca5f8] #3 /usr/lib/libX11.so.6(XUnmapWindow+0x25) [0xb76c0fb5] #4 libs/libSDL-1.2.so.0 [0xb7e76f01] #5 libs/libSDL-1.2.so.0 [0xb7e7840e] #6 libs/libSDL-1.2.so.0(SDL_VideoQuit+0x52) [0xb7e6e99a] #7 libs/libSDL-1.2.so.0(SDL_QuitSubSystem+0x8c) [0xb7e50298] #8 libs/libSDL-1.2.so.0(SDL_Quit+0x20) [0xb7e502ec] #9 ./silverback.bin [0x80a95d3] silverback.bin: ../../src/xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed. Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0xb6def767] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb6def81e] #2 /usr/lib/libX11.so.6 [0xb76ca5f8] #3 /usr/lib/libX11.so.6(XUnmapWindow+0x25) [0xb76c0fb5] #4 libs/libSDL-1.2.so.0 [0xb7e76f01] #5 libs/libSDL-1.2.so.0 [0xb7e7840e] #6 libs/libSDL-1.2.so.0(SDL_VideoQuit+0x52) [0xb7e6e99a] #7 libs/libSDL-1.2.so.0(SDL_QuitSubSystem+0x8c) [0xb7e50298] #8 libs/libSDL-1.2.so.0(SDL_Quit+0x20) [0xb7e502ec] #9 ./silverback.bin [0x80a95d3] silverback.bin: ../../src/xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed. Locking assertion failure. Backtrace: Segmentation fault (core dumped) I searched the web for this error, and it seems like running another 3d game, neverwinter nights, causes the same problem on Hardy. Here's a link to that: http://ubuntuforums.org/archive/index.php/t-666726.html Win a MacBook Air or iPod touch with Yahoo!7. http://au.docs.yahoo.com/homepageset -- hardy, locking assertion failure, xorg/libsdl https://bugs.launchpad.net/bugs/185311 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to pygtk in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
