Неожиданное завершение сеанса

[V@]

При веб-серфинге неожиданно выкинуло из сеанса:

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Dec 20 15:50:26 Asus kernel: [ 3820.012107] usb 1-1: reset high-speed USB device number 2 using xhci_hcd
Dec 20 15:50:26 Asus kernel: [ 3820.408625] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff880408902ae0
Dec 20 15:52:24 Asus kernel: [ 3938.466537] unity-settings-[2234]: segfault at 18 ip 00007f3b0e9598f3 sp 00007ffefb37c080 error 4 in libc-2.19.so[7f3b0e8db000+1bb000]
Dec 20 15:52:27 Asus colord: device removed: xrandr-Goldstar Company Ltd-L1753S-423200
Dec 20 15:52:27 Asus colord: Profile removed: icc-671c358216c56a794ae148684a139a53
Dec 20 15:52:28 Asus dbus[833]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper)
Dec 20 15:52:28 Asus dbus[833]: [system] Successfully activated service 'org.freedesktop.systemd1'
Dec 20 15:52:28 Asus kernel: [ 3941.620138] compiz[2439]: segfault at 0 ip           (null) sp 00007ffc7af75f78 error 14 in compiz[400000+3000]
Dec 20 14:47:47 Asus gnome-session[2253]: message repeated 2 times: [ GLib-CRITICAL: g_environ_setenv: assertion 'value != NULL' failed]
Dec 20 15:52:28 Asus gnome-session[2253]: WARNING: Application 'compiz.desktop' killed by signal 11
Dec 20 15:52:28 Asus gnome-session[2253]: WARNING: App 'compiz.desktop' respawning too quickly
Dec 20 15:52:28 Asus gnome-session[2253]: CRITICAL: We failed, but the fail whale is dead. Sorry....


Dec 20 15:47:52 Asus sudo: pam_unix(sudo:session): session opened for user root by vasya(uid=0)
Dec 20 15:48:00 Asus sudo: pam_unix(sudo:session): session closed for user root
Dec 20 15:52:28 Asus gnome-keyring-daemon[2040]: g_dbus_connection_real_closed: Remote peer vanished with error: Underlying GIOStream returned 0 bytes on an async read (g-io-error-quark, 0). Exiting.
Dec 20 15:52:28 Asus polkitd(authority=local): Unregistered Authentication Agent for unix-session:c2 (system bus name :1.71, object path /org/gnome/PolicyKit1/AuthenticationAgent, locale ru_RU.UTF-8) (disconnected from bus)
Dec 20 15:52:28 Asus lightdm: pam_unix(lightdm:session): session closed for user vasya
Dec 20 15:52:29 Asus lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Dec 20 15:52:29 Asus lightdm: PAM adding faulty module: pam_kwallet.so
Dec 20 15:52:29 Asus lightdm: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)
Dec 20 15:52:29 Asus systemd-logind[885]: New session c3 of user lightdm.
Dec 20 15:52:29 Asus systemd-logind[885]: Linked /tmp/.X11-unix/X0 to /run/user/112/X11-display.
Dec 20 15:52:29 Asus lightdm: pam_ck_connector(lightdm-greeter:session): nox11 mode, ignoring PAM_TTY :0
Dec 20 15:52:29 Asus lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Dec 20 15:52:29 Asus lightdm: PAM adding faulty module: pam_kwallet.so
Dec 20 15:52:29 Asus lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "vasya"
Dec 20 15:52:30 Asus dbus[833]: [system] Rejected send message, 2 matched rules; type="method_call", sender=":1.148" (uid=1000 pid=903 comm="/usr/bin/pulseaudio --start --log-target=syslog ") interface="org.bluez.Manager" member="GetProperties" error name="(unset)" requested_reply="0" destination="org.bluez" (uid=0 pid=889 comm="/usr/sbin/bluetoothd ")
Dec 20 15:52:36 Asus lightdm: pam_unix(lightdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost=  user=vasya
Dec 20 15:52:36 Asus lightdm: pam_winbind(lightdm:auth): getting password (0x00000388)
Dec 20 15:52:36 Asus lightdm: pam_winbind(lightdm:auth): pam_get_item returned a password
Dec 20 15:52:36 Asus lightdm: pam_winbind(lightdm:auth): request wbcLogonUser failed: WBC_ERR_AUTH_ERROR, PAM error: PAM_USER_UNKNOWN (10), NTSTATUS: NT_STATUS_NO_SUCH_USER, Error message was: No such user
Dec 20 15:52:38 Asus lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Dec 20 15:52:38 Asus lightdm: PAM adding faulty module: pam_kwallet.so
Dec 20 15:52:38 Asus lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "vasya"
Dec 20 15:52:39 Asus lightdm: pam_unix(lightdm:auth): authentication failure; logname= uid=0 euid=0 tty=:0 ruser= rhost=  user=vasya
Dec 20 15:52:39 Asus lightdm: pam_winbind(lightdm:auth): getting password (0x00000388)
Dec 20 15:52:39 Asus lightdm: pam_winbind(lightdm:auth): pam_get_item returned a password
Dec 20 15:52:39 Asus lightdm: pam_winbind(lightdm:auth): request wbcLogonUser failed: WBC_ERR_AUTH_ERROR, PAM error: PAM_USER_UNKNOWN (10), NTSTATUS: NT_STATUS_NO_SUCH_USER, Error message was: No such user
Dec 20 15:52:41 Asus lightdm: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory
Dec 20 15:52:41 Asus lightdm: PAM adding faulty module: pam_kwallet.so
Dec 20 15:52:41 Asus lightdm: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "vasya"
Dec 20 15:52:46 Asus lightdm: pam_unix(lightdm-greeter:session): session closed for user lightdm
Dec 20 15:52:46 Asus lightdm: pam_unix(lightdm:session): session opened for user vasya by (uid=0)
Dec 20 15:52:46 Asus systemd-logind[885]: New session c4 of user vasya .
Dec 20 15:52:46 Asus lightdm: pam_ck_connector(lightdm:session): nox11 mode, ignoring PAM_TTY :0
Dec 20 15:52:46 Asus gnome-keyring-daemon[3392]: couldn't set environment variable in session: The name org.gnome.SessionManager was not provided by any .service files
Dec 20 15:52:46 Asus gnome-keyring-daemon[3392]: message repeated 2 times: [ couldn't set environment variable in session: The name org.gnome.SessionManager was not provided by any .service files]
Dec 20 15:52:46 Asus gnome-keyring-daemon[3392]: The PKCS#11 component was already initialized
Dec 20 15:52:46 Asus gnome-keyring-daemon[3392]: The Secret Service was already initialized
Dec 20 15:52:46 Asus gnome-keyring-daemon[3392]: The SSH agent was already initialized
Dec 20 15:52:46 Asus gnome-keyring-daemon[3392]: The GPG agent was already initialized
Dec 20 15:52:48 Asus polkitd(authority=local): Registered Authentication Agent for unix-session:c4 (system bus name :1.184 [/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale ru_RU.UTF-8)

В чем может быть дело?
По состоянию на 13/06/2019 тема не получает никакого развития. Последняя активность ТС на форуме на момент закрытия темы: 20 Декабря 2015 (24 месяца назад).
Тема закрывается модератором в одностороннем порядке с последующим перемещением ее в архив.
--zg_nico