I suspect libglx0 (transition from libgl1-mesa-glx to libglx0) Because now we have: /usr/lib/x86_64-linux-gnu/libGLX.so.0.0.0 (from libglx0 in bionic, new with bionic)
instead of: /usr/lib/x86_64-linux-gnu/mesa/ld.so.conf /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1.2.0 (from libgl1-mesa-glx in artful, the packages is a transitional dummy package in bionic) The Xorg.0.log backtrace is showing: [ 210.258] (EE) Backtrace: [ 210.258] (EE) 0: /usr/lib/xorg/Xorg (xorg_backtrace+0x4d) [0x5645df72591d] [ 210.258] (EE) 1: /usr/lib/xorg/Xorg (0x5645df56d000+0x1bc6b9) [0x5645df7296b9] [ 210.258] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f00a84af000+0x12890) [0x7f00a84c1890] [ 210.258] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0xc7) [0x7f00a80fce97] [ 210.258] (EE) 4: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x141) [0x7f00a80fe801] [ 210.258] (EE) 5: /lib/x86_64-linux-gnu/libc.so.6 (0x7f00a80be000+0x3039a) [0x7f00a80ee39a] [ 210.258] (EE) 6: /lib/x86_64-linux-gnu/libc.so.6 (0x7f00a80be000+0x30412) [0x7f00a80ee412] [ 210.258] (EE) 7: /usr/lib/xorg/Xorg (0x5645df56d000+0x3ec17) [0x5645df5abc17] [ 210.258] (EE) 8: /usr/lib/xorg/Xorg (0x5645df56d000+0xe26df) [0x5645df64f6df] [ 210.258] (EE) 9: /usr/lib/xorg/modules/extensions/libglx.so (0x7f00a6473000+0x288d7) [0x7f00a649b8d7] [ 210.258] (EE) 10: /usr/lib/xorg/modules/extensions/libglx.so (0x7f00a6473000+0x2f851) [0x7f00a64a2851] [ 210.258] (EE) 11: /usr/lib/xorg/modules/extensions/libglx.so (0x7f00a6473000+0x27315) [0x7f00a649a315] [ 210.259] (EE) 12: /usr/lib/xorg/Xorg (InitExtensions+0x3d) [0x5645df63308d] [ 210.259] (EE) 13: /usr/lib/xorg/Xorg (0x5645df56d000+0x56d1f) [0x5645df5c3d1f] [ 210.259] (EE) 14: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xe7) [0x7f00a80dfb97] [ 210.259] (EE) 15: /usr/lib/xorg/Xorg (_start+0x2a) [0x5645df5adbba] [ 210.259] (EE) [ 210.259] (EE) Fatal server error: However that libglx.so shown in the error log is part of xserver-xorg- core. But I suspect it has to do with the changed to vendor neutral libglx (libglx0, libglvnd0, etc.) That would explain why it is happening with Bionic and no other versions before for me. Can someone reproduce this? In your Display Manager switch to a VT (or deinstall display manager temporarily) and modify/create a /etc/X11/xorg.conf file with Section "Extensions" Option "Composite" "Disable" EndSection And sudo service lightdm/gdm3 stop and then try to start the Xserver/Xsession with startx or xinit. As this is the first version of Ubuntu which seems to have this problem for -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1754296 Title: [bionic] startx / xinit crashes with Composite Disabled in xorg.conf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1754296/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
