Sep  6 16:58:07 celsius kernel: [ 3818.421140] nouveau 0000:01:00.0: Direct firmware load for nouveau/nv84_xuc103 failed with error -2
Sep  6 16:58:07 celsius kernel: [ 3818.421142] nouveau 0000:01:00.0: bsp: unable to load firmware nouveau/nv84_xuc103
Sep  6 17:02:59 celsius kernel: [ 4110.680990] CE: hpet increased min_delta_ns to 101830 nsec
Sep  6 17:03:34 celsius NetworkManager[1906]: <info>  [1473174214.7332] manager: kernel firmware directory '/lib/firmware' changed
Sep  6 17:05:56 celsius kernel: [ 4287.855454] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:06:17 celsius kernel: [ 4308.524452] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:06:26 celsius kernel: [ 4317.873576] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:06:37 celsius kernel: [ 4329.193419] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:06:47 celsius kernel: [ 4338.542497] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:06:55 celsius kernel: [ 4346.589597] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:06:58 celsius kernel: [ 4349.862379] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:07:07 celsius kernel: [ 4359.211517] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:07:19 celsius kernel: [ 4370.531353] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:07:28 celsius kernel: [ 4379.880491] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:07:38 celsius kernel: [ 4390.242074] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:39 celsius kernel: [ 4391.200360] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:07:41 celsius kernel: [ 4392.778344] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:41 celsius kernel: [ 4393.194381] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:42 celsius kernel: [ 4393.466408] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:42 celsius kernel: [ 4393.674430] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:42 celsius kernel: [ 4393.890453] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:42 celsius kernel: [ 4394.074472] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:42 celsius kernel: [ 4394.258491] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:43 celsius kernel: [ 4394.466514] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:44 celsius kernel: [ 4396.242700] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:47 celsius kernel: [ 4398.346919] sysrq: SysRq : This sysrq operation is disabled.
Sep  6 17:07:49 celsius kernel: [ 4400.549486] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:08:00 celsius kernel: [ 4411.869362] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:08:06 celsius kernel: [ 4417.884968] sysrq: SysRq : SAK
Sep  6 17:08:06 celsius kernel: [ 4417.884995] tty tty7: SAK: killed process 2070 (Xorg): by session
Sep  6 17:08:06 celsius kernel: [ 4417.885129] tty tty7: SAK: killed process 2070 (Xorg): by controlling tty
Sep  6 17:08:09 celsius kernel: [ 4421.218506] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:08:21 celsius kernel: [ 4432.538382] nouveau 0000:01:00.0: bsp: Watchdog interrupt, engine hung.
Sep  6 17:08:27 celsius kernel: [ 4438.511457] kactivitymanage[19368]: segfault at 7ff9c4010cd0 ip 00007ff9a9f45471 sp 00007fff073ad8c8 error 4 in libQt5Sql.so.5.6.1[7ff9a9f2f000+45000]
Sep  6 17:08:27 celsius org.kde.kglobalaccel[2216]: The X11 connection broke (error 1). Did the X11 server die?
Sep  6 17:08:27 celsius org.a11y.atspi.Registry[2249]: XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
Sep  6 17:08:27 celsius org.a11y.atspi.Registry[2249]:       after 6561 requests (6561 known processed) with 0 events remaining.
Sep  6 17:08:27 celsius org.kde.kaccessibleapp[2216]: kaccessibleapp: Fatal IO error: client killed
Sep  6 17:08:27 celsius org.freedesktop.Notifications[2216]: xfce4-notifyd: Fatal IO error 11 (Die Ressource ist zur Zeit nicht verfügbar) on X server :0.
Sep  6 17:08:27 celsius org.gtk.vfs.Daemon[2216]: A connection to the bus can't be made
Sep  6 17:08:27 celsius org.gtk.vfs.Daemon[2216]: A connection to the bus can't be made
Sep  6 17:08:30 celsius kernel: [ 4441.887584] nouveau 0000:01:00.0: vp: Watchdog interrupt, engine hung.
Sep  6 17:09:50 celsius rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="1865" x-info="http://www.rsyslog.com"] start
Sep  6 17:09:50 celsius kernel: [    0.000000] microcode: microcode updated early to revision 0xa0b, date = 2010-09-28
Sep  6 17:09:50 celsius kernel: [    0.000000] Linux version 4.8.0-rc4+ (root@celsius) (gcc version 6.1.1 20160802 (Debian 6.1.1-11) ) #1 SMP Sun Sep 4 23:11:57 CEST 2016