Here is previous attempt from lightdm.log.4 ** (lightdm:2809): WARNING **: Failed to connect to Mir: connect: No such file or directory ** (lightdm:3649): WARNING **: Failed to connect to Mir: connect: No such file or directory *** Error in `lightdm': double free or corruption (!prev): 0x09b745c8 *** *** Error in `lightdm': free(): corrupted unsorted chunks: 0x09b72168 *** ======= Backtrace: ========= /lib/i386-linux-gnu/libc.so.6(+0x767e2)[0xb71e37e2] /lib/i386-linux-gnu/libc.so.6(+0x77530)[0xb71e4530] /usr/lib/i386-linux-gnu/libstdc++.so.6(_ZdlPv+0x1f)[0xb6f00b4f] /usr/lib/libmirclient.so.0(_ZNSt13unordered_setIPN11mir_toolkit13MirConnectionESt4hashIS2_ESt8equal_toIS2_ESaIS2_EED1Ev+0x2d)[0xb73f5e4d] /lib/i386-linux-gnu/libc.so.6(__cxa_finalize+0xb3)[0xb71a0b63] /usr/lib/libmirclient.so.0(+0x1eab3)[0xb73edab3] /lib/ld-linux.so.2(+0xf7dc)[0xb77257dc] /lib/i386-linux-gnu/libc.so.6(+0x337c1)[0xb71a07c1] ======= Memory map: ======== 08048000-08071000 r-xp 00000000 08:06 135002273 /usr/sbin/lightdm 08071000-08072000 r--p 00029000 08:06 135002273 /usr/sbin/lightdm 08072000-08073000 rw-p 0002a000 08:06 135002273 /usr/sbin/lightdm 09b70000-09bb2000 rw-p 00000000 00:00 0 [heap] b6300000-b6321000 rw-p 00000000 00:00 0 b6321000-b6400000 ---p 00000000 00:00 0 b64ff000-b6500000 ---p 00000000 00:00 0 b6500000-b6d00000 rw-p 00000000 00:00 0 [stack:1650] b6d00000-b6d0b000 r-xp 00000000 08:06 134223643 /lib/i386-linux-gnu/libnss_files-2.17.so b6d0b000-b6d0c000 r--p 0000a000 08:06 134223643 /lib/i386-linux-gnu/libnss_files-2.17.so b6d0c000-b6d0d000 rw-p 0000b000 08:06 134223643 /lib/i386-linux-gnu/libnss_files-2.17.so b6d0d000-b6d17000 r-xp 00000000 08:06 134223647 /lib/i386-linux-gnu/libnss_nis-2.17.so b6d17000-b6d18000 r--p 00009000 08:06 134223647 /lib/i386-linux-gnu/libnss_nis-2.17.so b6d18000-b6d19000 rw-p 0000a000 08:06 134223647 /lib/i386-linux-gnu/libnss_nis-2.17.so b6d26000-b6d2d000 r--s 00000000 08:06 404450423 /usr/lib/i386-linux-gnu/gconv/gconv-modules.cache b6d2d000-b6d34000 r-xp 00000000 08:06 134279818 /lib/i386-linux-gnu/librt-2.17.so b6d34000-b6d35000 r--p 00006000 08:06 134279818 /lib/i386-linux-gnu/librt-2.17.so b6d35000-b6d36000 rw-p 00007000 08:06 134279818 /lib/i386-linux-gnu/librt-2.17.so b6d36000-b6d38000 r-xp 00000000 08:06 404538542 /usr/lib/i386-linux-gnu/libck-connector.so.0.0.0 b6d38000-b6d39000 r--p 00002000 08:06 404538542 /usr/lib/i386-linux-gnu/libck-connector.so.0.0.0 b6d39000-b6d3a000 rw-p 00003000 08:06 404538542 /usr/lib/i386-linux-gnu/libck-connector.so.0.0.0 b6d3a000-b6d82000 r-xp 00000000 08:06 134414783 /lib/i386-linux-gnu/libdbus-1.so.3.7.2 b6d82000-b6d83000 r--p 00047000 08:06 134414783 /lib/i386-linux-gnu/libdbus-1.so.3.7.2 b6d83000-b6d84000 rw-p 00048000 08:06 134414783 /lib/i386-linux-gnu/libdbus-1.so.3.7.2 b6d8a000-b6d91000 r-xp 00000000 08:06 134223639 /lib/i386-linux-gnu/libnss_compat-2.17.so b6d91000-b6d92000 r--p 00006000 08:06 134223639 /lib/i386-linux-gnu/libnss_compat-2.17.so b6d92000-b6d93000 rw-p 00007000 08:06 134223639 /lib/i386-linux-gnu/libnss_compat-2.17.so b6d93000-b6d96000 r-xp 00000000 08:06 1546101 /lib/i386-linux-gnu/security/pam_env.so b6d96000-b6d97000 r--p 00002000 08:06 1546101 /lib/i386-linux-gnu/security/pam_env.so b6d97000-b6d98000 rw-p 00003000 08:06 1546101 /lib/i386-linux-gnu/security/pam_env.so b6d98000-b6d9a000 r-xp 00000000 08:06 1173 /lib/i386-linux-gnu/security/pam_ck_connector.so b6d9a000-b6d9b000 r--p 00001000 08:06 1173 /lib/i386-linux-gnu/security/pam_ck_connector.so b6d9b000-b6d9c000 rw-p 00002000 08:06 1173 /lib/i386-linux-gnu/security/pam_ck_connector.so b6d9c000-b6d9e000 r-xp 00000000 08:06 157318 /lib/i386-linux-gnu/security/pam_xdg_support.so b6d9e000-b6d9f000 r--p 00001000 08:06 157318 /lib/i386-linux-gnu/security/pam_xdg_support.so b6d9f000-b6da0000 rw-p 00002000 08:06 157318 /lib/i386-linux-gnu/security/pam_xdg_support.so b6da0000-b6da2000 r-xp 00000000 08:06 1546110 /lib/i386-linux-gnu/security/pam_umask.so b6da2000-b6da3000 r--p 00001000 08:06 1546110 /lib/i386-linux-gnu/security/pam_umask.so b6da3000-b6da4000 rw-p 00002000 08:06 1546110 /lib/i386-linux-gnu/security/pam_umask.so b6da4000-b6da8000 r-xp 00000000 08:06 1546224 /lib/i386-linux-gnu/security/pam_limits.so b6da8000-b6da9000 r--p 00003000 08:06 1546224 /lib/i386-linux-gnu/security/pam_limits.so b6da9000-b6daa000 rw-p 00004000 08:06 1546224 /lib/i386-linux-gnu/security/pam_limits.so b6daa000-b6dae000 r-xp 00000000 08:06 134223575 /lib/i386-linux-gnu/libcap.so.2.22 b6dae000-b6daf000 r--p 00003000 08:06 134223575 /lib/i386-linux-gnu/libcap.so.2.22 b6daf000-b6db0000 rw-p 00004000 08:06 134223575 /lib/i386-linux-gnu/libcap.so.2.22 b6db0000-b6db9000 r-xp 00000000 08:06 134223580 /lib/i386-linux-gnu/libcrypt-2.17.so b6db9000-b6dba000 r--p 00008000 08:06 134223580 /lib/i386-linux-gnu/libcrypt-2.17.so b6dba000-b6dbb000 rw-p 00009000 08:06 134223580 /lib/i386-linux-gnu/libcrypt-2.17.so b6dbb000-b6de2000 rw-p 00000000 00:00 0 b6de2000-b6df7000 r-xp 00000000 08:06 134223637 /lib/i386-linux-gnu/libnsl-2.17.so b6df7000-b6df8000 r--p 00014000 08:06 134223637 /lib/i386-linux-gnu/libnsl-2.17.so b6df8000-b6df9000 rw-p 00015000 08:06 134223637 /lib/i386-linux-gnu/libnsl-2.17.so b6df9000-b6dfb000 rw-p 00000000 00:00 0 b6dfc000-b6dfd000 rw-p 00000000 00:00 0 b6dfd000-b6e01000 r-xp 00000000 08:06 1518961 /lib/i386-linux-gnu/security/pam_selinux.so b6e01000-b6e02000 r--p 00003000 08:06 1518961 /lib/i386-linux-gnu/security/pam_selinux.so b6e02000-b6e03000 rw-p 00004000 08:06 1518961 /lib/i386-linux-gnu/security/pam_selinux.so b6e03000-b6e0d000 r-xp 00000000 08:06 269931 /lib/i386-linux-gnu/security/pam_gnome_keyring.so b6e0d000-b6e0e000 r--p 00009000 08:06 269931 /lib/i386-linux-gnu/security/pam_gnome_keyring.so b6e0e000-b6e0f000 rw-p 0000a000 08:06 269931 /lib/i386-linux-gnu/security/pam_gnome_keyring.so b6e0f000-b6e1c000 r-xp 00000000 08:06 1519235 /lib/i386-linux-gnu/security/pam_unix.so b6e1c000-b6e1d000 r--p 0000c000 08:06 1519235 /lib/i386-linux-gnu/security/pam_unix.so b6e1d000-b6e1e000 rw-p 0000d000 08:06 1519235 /lib/i386-linux-gnu/security/pam_unix.so b6e1e000-b6e2e000 rw-p 00000000 00:00 0 b6e2e000-b6e31000 r-xp 00000000 08:06 134223587 /lib/i386-linux-gnu/libdl-2.17.so b6e31000-b6e32000 r--p 00002000 08:06 134223587 /lib/i386-linux-gnu/libdl-2.17.so b6e32000-b6e33000 rw-p 00003000 08:06 134223587 /lib/i386-linux-gnu/libdl-2.17.so b6e33000-b6e4c000 r-xp 00000000 08:06 135882494 /lib/i386-linux-gnu/libaudit.so.1.0.0 b6e4c000-b6e4d000 r--p 00018000 08:06 135882494 /lib/i386-linux-gnu/libaudit.so.1.0.0 b6e4d000-b6e4e000 rw-p 00019000 08:06 135882494 /lib/i386-linux-gnu/libaudit.so.1.0.0 b6e4e000-b6e52000 rw-p 00000000 00:00 0 b6e52000-b6e55000 r-xp 00000000 08:06 134223603 /lib/i386-linux-gnu/libgpg-error.so.0.8.0 b6e55000-b6e56000 r--p 00002000 08:06 134223603 /lib/i386-linux-gnu/libgpg-error.so.0.8.0 b6e56000-b6e57000 rw-p 00003000 08:06 134223603 /lib/i386-linux-gnu/libgpg-error.so.0.8.0 b6e57000-b6e72000 r-xp 00000000 08:06 134448471 /lib/i386-linux-gnu/libgcc_s.so.1 b6e72000-b6e73000 r--p 0001a000 08:06 134448471 /lib/i386-linux-gnu/libgcc_s.so.1 b6e73000-b6e74000 rw-p 0001b000 08:06 134448471 /lib/i386-linux-gnu/libgcc_s.so.1 b6e74000-b6eb5000 r-xp 00000000 08:06 134223618 /lib/i386-linux-gnu/libm-2.17.so b6eb5000-b6eb6000 r--p 00040000 08:06 134223618 /lib/i386-linux-gnu/libm-2.17.so b6eb6000-b6eb7000 rw-p 00041000 08:06 134223618 /lib/i386-linux-gnu/libm-2.17.so b6eb7000-b6eb8000 rw-p 00000000 00:00 0 b6eb8000-b6f94000 r-xp 00000000 08:06 405006764 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17 b6f94000-b6f95000 ---p 000dc000 08:06 405006764 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17 b6f95000-b6f99000 r--p 000dc000 08:06 405006764 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17 b6f99000-b6f9a000 rw-p 000e0000 08:06 405006764 /usr/lib/i386-linux-gnu/libstdc++.so.6.0.17 b6f9a000-b6fa1000 rw-p 00000000 00:00 0 b6fa1000-b6fac000 r-xp 00000000 08:06 404853679 /usr/lib/i386-linux-gnu/libdrm.so.2.4.0 b6fac000-b6fad000 r--p 0000a000 08:06 404853679 /usr/lib/i386-linux-gnu/libdrm.so.2.4.0 b6fad000-b6fae000 rw-p 0000b000 08:06 404853679 /usr/lib/i386-linux-gnu/libdrm.so.2.4.0 b6fae000-b6fd2000 r-xp 00000000 08:06 402653365 /usr/lib/libmirprotobuf.so.0.0.2 b6fd2000-b6fd3000 ---p 00024000 08:06 402653365 /usr/lib/libmirprotobuf.so.0.0.2 b6fd3000-b6fd4000 r--p 00024000 08:06 402653365 /usr/lib/libmirprotobuf.so.0.0.2 b6fd4000-b6fd5000 rw-p 00025000 08:06 402653365 /usr/lib/libmirprotobuf.so.0.0.2 b6fd5000-b70c2000 r-xp 00000000 08:06 403050629 /usr/lib/libprotobuf.so.7.0.0 b70c2000-b70c3000 ---p 000ed000 08:06 403050629 /usr/lib/libprotobuf.so.7.0.0 b70c3000-b70c5000 r--p 000ed000 08:06 403050629 /usr/lib/libprotobuf.so.7.0.0 b70c5000-b70c6000 rw-p 000ef000 08:06 403050629 /usr/lib/libprotobuf.so.7.0.0 b70c6000-b70c8000 r-xp 00000000 08:06 405020937 /usr/lib/libboost_system.so.1.49.0 b70c8000-b70c9000 ---p 00002000 08:06 405020937 /usr/lib/libboost_system.so.1.49.0 b70c9000-b70ca000 r--p 00002000 08:06 405020937 /usr/lib/libboost_system.so.1.49.0 b70ca000-b70cb000 rw-p 00003000 08:06 405020937 /usr/lib/libboost_system.so.1.49.0 b70cb000-b70cc000 rw-p 00000000 00:00 0 b70cc000-b70ce000 r-xp 00000000 08:06 403568562 /usr/lib/i386-linux-gnu/libXau.so.6.0.0 b70ce000-b70cf000 r--p 00001000 08:06 403568562 /usr/lib/i386-linux-gnu/libXau.so.6.0.0 b70cf000-b70d0000 rw-p 00002000 08:06 403568562 /usr/lib/i386-linux-gnu/libXau.so.6.0.0 b70d0000-b710f000 r-xp 00000000 08:06 135138811 /lib/i386-linux-gnu/libpcre.so.3.13.1 b710f000-b7110000 r--p 0003f000 08:06 135138811 /lib/i386-linux-gnu/libpcre.so.3.13.1 b7110000-b7111000 rw-p 00040000 08:06 135138811 /lib/i386-linux-gnu/libpcre.so.3.13.1 b7111000-b7116000 r-xp 00000000 08:06 402882878 /usr/lib/i386-linux-gnu/libffi.so.6.0.1 b7116000-b7117000 r--p 00005000 08:06 402882878 /usr/lib/i386-linux-gnu/libffi.so.6.0.1 b7117000-b7118000 rw-p 00006000 08:06 402882878 /usr/lib/i386-linux-gnu/libffi.so.6.0.1 b7118000-b712b000 r-xp 00000000 08:06 134279816 /lib/i386-linux-gnu/libresolv-2.17.so b712b000-b712c000 r--p 00013000 08:06 134279816 /lib/i386-linux-gnu/libresolv-2.17.so b712c000-b712d000 rw-p 00014000 08:06 134279816 /lib/i386-linux-gnu/libresolv-2.17.so b712d000-b712f000 rw-p 00000000 00:00 0 b712f000-b714c000 r-xp 00000000 08:06 134279820 /lib/i386-linux-gnu/libselinux.so.1 b714c000-b714d000 r--p 0001c000 08:06 134279820 /lib/i386-linux-gnu/libselinux.so.1 b714d000-b714e000 rw-p 0001d000 08:06 134279820 /lib/i386-linux-gnu/libselinux.so.1 b714e000-b714f000 rw-p 00000000 00:00 0 b714f000-b7166000 r-xp 00000000 08:06 134279849 /lib/i386-linux-gnu/libz.so.1.2.7 b7166000-b7167000 r--p 00016000 08:06 134279849 /lib/i386-linux-gnu/libz.so.1.2.7 b7167000-b7168000 rw-p 00017000 08:06 134279849 /lib/i386-linux-gnu/libz.so.1.2.7 b7168000-b716b000 r-xp 00000000 08:06 403470361 /usr/lib/i386-linux-gnu/libgmodule-2.0.so.0.3508.0 b716b000-b716c000 r--p 00002000 08:06 403470361 /usr/lib/i386-linux-gnu/libgmodule-2.0.so.0.3508.0 b716c000-b716d000 rw-p 00003000 08:06 403470361 /usr/lib/i386-linux-gnu/libgmodule-2.0.so.0.3508.0 b716d000-b731a000 r-xp 00000000 08:06 134223572 /lib/i386-linux-gnu/libc-2.17.so b731a000-b731c000 r--p 001ad000 08:06 134223572 /lib/i386-linux-gnu/libc-2.17.so b731c000-b731d000 rw-p 001af000 08:06 134223572 /lib/i386-linux-gnu/libc-2.17.so b731d000-b7320000 rw-p 00000000 00:00 0 b7320000-b7337000 r-xp 00000000 08:06 134279810 /lib/i386-linux-gnu/libpthread-2.17.so b7337000-b7338000 r--p 00016000 08:06 134279810 /lib/i386-linux-gnu/libpthread-2.17.so b7338000-b7339000 rw-p 00017000 08:06 134279810 /lib/i386-linux-gnu/libpthread-2.17.so b7339000-b733b000 rw-p 00000000 00:00 0 b733b000-b7348000 r-xp 00000000 08:06 135191085 /lib/i386-linux-gnu/libpam.so.0.83.0 b7348000-b7349000 r--p 0000c000 08:06 135191085 /lib/i386-linux-gnu/libpam.so.0.83.0 b7349000-b734a000 rw-p 0000d000 08:06 135191085 /lib/i386-linux-gnu/libpam.so.0.83.0 b734a000-b734b000 rw-p 00000000 00:00 0 b734b000-b73cc000 r-xp 00000000 08:06 134223599 /lib/i386-linux-gnu/libgcrypt.so.11.7.0 b73cc000-b73cd000 r--p 00080000 08:06 134223599 /lib/i386-linux-gnu/libgcrypt.so.11.7.0 b73cd000-b73cf000 rw-p 00081000 08:06 134223599 /lib/i386-linux-gnu/libgcrypt.so.11.7.0 b73cf000-b7412000 r-xp 00000000 08:06 404686894 /usr/lib/libmirclient.so.0.0.2 b7412000-b7414000 r--p 00043000 08:06 404686894 /usr/lib/libmirclient.so.0.0.2 b7414000-b7415000 rw-p 00045000 08:06 404686894 /usr/lib/libmirclient.so.0.0.2 b7415000-b7435000 r-xp 00000000 08:06 404750716 /usr/lib/i386-linux-gnu/libxcb.so.1.1.0 b7435000-b7436000 r--p 0001f000 08:06 404750716 /usr/lib/i386-linux-gnu/libxcb.so.1.1.0 b7436000-b7437000 rw-p 00020000 08:06 404750716 /usr/lib/i386-linux-gnu/libxcb.so.1.1.0 b7437000-b743c000 r-xp 00000000 08:06 403568573 /usr/lib/i386-linux-gnu/libXdmcp.so.6.0.0 b743c000-b743d000 r--p 00004000 08:06 403568573 /usr/lib/i386-linux-gnu/libXdmcp.so.6.0.0 b743d000-b743e000 rw-p 00005000 08:06 403568573 /usr/lib/i386-linux-gnu/libXdmcp.so.6.0.0 b743e000-b753d000 r-xp 00000000 08:06 134431633 /lib/i386-linux-gnu/libglib-2.0.so.0.3508.0 b753d000-b753e000 r--p 000fe000 08:06 134431633 /lib/i386-linux-gnu/libglib-2.0.so.0.3508.0 b753e000-b753f000 rw-p 000ff000 08:06 134431633 /lib/i386-linux-gnu/libglib-2.0.so.0.3508.0 b753f000-b7540000 rw-p 00000000 00:00 0 b7540000-b758f000 r-xp 00000000 08:06 403470360 /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.3508.0 b758f000-b7590000 ---p 0004f000 08:06 403470360 /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.3508.0 b7590000-b7591000 r--p 0004f000 08:06 403470360 /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.3508.0 b7591000-b7592000 rw-p 00050000 08:06 403470360 /usr/lib/i386-linux-gnu/libgobject-2.0.so.0.3508.0 b7592000-b76fb000 r-xp 00000000 08:06 403470359 /usr/lib/i386-linux-gnu/libgio-2.0.so.0.3508.0 b76fb000-b76fd000 r--p 00168000 08:06 403470359 /usr/lib/i386-linux-gnu/libgio-2.0.so.0.3508.0 b76fd000-b76fe000 rw-p 0016a000 08:06 403470359 /usr/lib/i386-linux-gnu/libgio-2.0.so.0.3508.0 b76fe000-b76ff000 rw-p 00000000 00:00 0 b76ff000-b7701000 r-xp 00000000 08:06 43680 /lib/i386-linux-gnu/security/pam_cap.so b7701000-b7702000 r--p 00001000 08:06 43680 /lib/i386-linux-gnu/security/pam_cap.so b7702000-b7703000 rw-p 00002000 08:06 43680 /lib/i386-linux-gnu/security/pam_cap.so b7703000-b7704000 r-xp 00000000 08:06 1546338 /lib/i386-linux-gnu/security/pam_permit.so b7704000-b7705000 r--p 00000000 08:06 1546338 /lib/i386-linux-gnu/security/pam_permit.so b7705000-b7706000 rw-p 00001000 08:06 1546338 /lib/i386-linux-gnu/security/pam_permit.so b7706000-b7707000 r-xp 00000000 08:06 1546100 /lib/i386-linux-gnu/security/pam_deny.so b7707000-b7708000 r--p 00000000 08:06 1546100 /lib/i386-linux-gnu/security/pam_deny.so b7708000-b7709000 rw-p 00001000 08:06 1546100 /lib/i386-linux-gnu/security/pam_deny.so b770a000-b770d000 r-xp 00000000 08:06 1546098 /lib/i386-linux-gnu/security/pam_succeed_if.so b770d000-b770e000 r--p 00002000 08:06 1546098 /lib/i386-linux-gnu/security/pam_succeed_if.so b770e000-b770f000 rw-p 00003000 08:06 1546098 /lib/i386-linux-gnu/security/pam_succeed_if.so b770f000-b7710000 r-xp 00000000 08:06 1546572 /lib/i386-linux-gnu/security/pam_nologin.so b7710000-b7711000 r--p 00000000 08:06 1546572 /lib/i386-linux-gnu/security/pam_nologin.so b7711000-b7712000 rw-p 00001000 08:06 1546572 /lib/i386-linux-gnu/security/pam_nologin.so b7712000-b7715000 rw-p 00000000 00:00 0 b7715000-b7716000 r-xp 00000000 00:00 0 [vdso] b7716000-b7736000 r-xp 00000000 08:06 134223324 /lib/i386-linux-gnu/ld-2.17.so b7736000-b7737000 r--p 0001f000 08:06 134223324 /lib/i386-linux-gnu/ld-2.17.so b7737000-b7738000 rw-p 00020000 08:06 134223324 /lib/i386-linux-gnu/ld-2.17.so bf84c000-bf86d000 rw-p 00000000 00:00 0 [stack] Failed to load configuration from /etc/lightdm/lightdm.conf: Key file contains line 'type-mir' which is not a key-value pair, group, or comment ** (lightdm:2022): WARNING **: Failed to connect to Mir: connect: No such file or directory ** (lightdm:994): WARNING **: Failed to connect to Mir: connect: No such file or directory ** (lightdm:990): WARNING **: Failed to connect to Mir: connect: No such file or directory /bin/rm: cannot remove '/run/user/ventrical/gvfs': Is a directory /bin/rm: cannot remove '/run/user/ventrical/gvfs': Is a directory ** (lightdm:1009): WARNING **: Failed to connect to Mir: connect: No such file or directory ** (lightdm:4031): WARNING **: Failed to connect to Mir: connect: No such file or directory ** (lightdm:987): WARNING **: Failed to connect to Mir: connect: No such file or directory