Created attachment 85740 [details] Xorg.0.log [ 310.114] (EE) BUG: triggered 'if (!(event->device_event.flags & (1 << 5)))' [ 310.114] (EE) BUG: /var/tmp/portage/x11-base/xorg-server-1.14.2.902-r1/work/xorg-server-1.14.2.902/dix/touch .c:644 in TouchConvertToPointerEvent() [ 310.114] (EE) Non-emulating touch event [ 310.114] (EE) [ 310.114] (EE) Backtrace: [ 310.114] (EE) 0: /usr/bin/Xorg (xorg_backtrace+0x47) [0x7fe1f219bda7] [ 310.114] (EE) 1: /usr/bin/Xorg (0x7fe1f1fc8000+0x875f7) [0x7fe1f204f5f7] [ 310.114] (EE) 2: /usr/bin/Xorg (0x7fe1f1fc8000+0x158c19) [0x7fe1f2120c19] [ 310.114] (EE) 3: /usr/bin/Xorg (0x7fe1f1fc8000+0x15832c) [0x7fe1f212032c] [ 310.114] (EE) 4: /usr/bin/Xorg (0x7fe1f1fc8000+0x15b62f) [0x7fe1f212362f] [ 310.114] (EE) 5: /usr/bin/Xorg (0x7fe1f1fc8000+0x18111f) [0x7fe1f214911f] [ 310.114] (EE) 6: /usr/bin/Xorg (mieqProcessDeviceEvent+0x1b5) [0x7fe1f217ae15] [ 310.115] (EE) 7: /usr/bin/Xorg (mieqProcessInputEvents+0x10b) [0x7fe1f217af4b] [ 310.115] (EE) 8: /usr/bin/Xorg (ProcessInputEvents+0x19) [0x7fe1f2067509] [ 310.115] (EE) 9: /usr/bin/Xorg (0x7fe1f1fc8000+0x58092) [0x7fe1f2020092] [ 310.115] (EE) 10: /usr/bin/Xorg (0x7fe1f1fc8000+0x44a8a) [0x7fe1f200ca8a] [ 310.115] (EE) 11: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7fe1f01c1905] [ 310.115] (EE) 12: /usr/bin/Xorg (0x7fe1f1fc8000+0x44de5) [0x7fe1f200cde5] Or with resolved functions: 0: /usr/bin/Xorg (xorg_backtrace+71) [0x7fe1f219bda7] 1: /usr/bin/Xorg (TouchConvertToPointerEvent + 439) 2: /usr/bin/Xorg (DeliverTouchEmulatedEvent.isra.11.part.12 + 105) 3: /usr/bin/Xorg (DeliverTouchEvents + 700) 4: /usr/bin/Xorg (ProcessOtherEvent + 1007) 5: /usr/bin/Xorg (ProcessPointerEvent + 239) 6: /usr/bin/Xorg (mieqProcessDeviceEvent+0x1b5) 7: /usr/bin/Xorg (mieqProcessInputEvents+0x10b) 8: /usr/bin/Xorg (ProcessInputEvents + 25) 9: /usr/bin/Xorg (Dispatch + 146) 10: /usr/bin/Xorg (main + 986) [0x7fe1f200ca8a] 11: /lib64/libc.so.6 (__libc_start_main+0xf5) 12: /usr/bin/Xorg (_start + 41) [0x7fe1f200cde5] I failed to find exact steps to reproduce the problem but I easily reproduce it here. I'm running gnome-3.8 (gnome-shell-3.8.4) on ThinkPad X230.
I have the same bug consistently reproduced on a touchscreen setup. If I use 2 fingers to swipe on my touchscreen, the crash is triggered. I reported the bug @ https://bugs.freedesktop.org/show_bug.cgi?id=96775 and then saw your bug report.
*** Bug 96775 has been marked as a duplicate of this bug. ***
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/xserver/issues/570.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.