kernel - Continuous micro-freezing in Ubuntu 14.04 - Ask Ubuntu

since couple of months experience continuous freezings of system (dell xps 13 2014, i7, ubuntu 14.04). if not mistaken, first appeared @ time when fans of laptop broke down, system randomly freeze (and stayed frozen). i've replaced fans , "total freezings" have disappeared; still experience very, annoying micro-freezings (~½ second): usual work not affected much, watching youtube video or listening spotify has become virtually impossible; can't understand whether issue of bios, cpu, or ubuntu.

let me copy , paste syslog last 30 minutes or so: fact trackpad loses sync looks me symptom, not cause of freezings.

oct 27 10:45:18 delio-xps kernel: [34341.874179] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.  oct 27 10:45:43 delio-xps kernel: [34366.893892] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.  oct 27 10:46:05 delio-xps anacron[16208]: job `cron.daily' terminated  oct 27 10:46:05 delio-xps anacron[16208]: normal exit (1 job run)  oct 27 10:47:18 delio-xps kernel: [34461.961207] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.  oct 27 10:48:33 delio-xps kernel: [34537.004388] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.  oct 27 10:48:48 delio-xps kernel: [34552.012241] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.  oct 27 10:49:08 delio-xps kernel: [34572.027774] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.  oct 27 10:49:13 delio-xps kernel: [34577.027337] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.  oct 27 10:49:53 delio-xps kernel: [34617.058832] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.  oct 27 10:50:01 delio-xps cron[20916]: (root) cmd (pkill -f indicator-power-service)  oct 27 10:50:08 delio-xps kernel: [34632.062841] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.  oct 27 10:50:45 delio-xps wpa_supplicant[1740]: message repeated 4 times: [ wlan0: ctrl-event-scan-started ]  oct 27 10:51:14 delio-xps wpa_supplicant[1740]: wlan0: wpa: group rekeying completed c8:0e:14:42:80:c3 [gtk=ccmp]  oct 27 10:51:28 delio-xps kernel: [34712.232648] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.  oct 27 10:51:43 delio-xps kernel: [34727.131013] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.  oct 27 10:52:45 delio-xps wpa_supplicant[1740]: wlan0: ctrl-event-scan-started   oct 27 10:53:37 delio-xps aptdaemon: info: quitting due inactivity  oct 27 10:53:37 delio-xps aptdaemon: info: quitting requested  oct 27 10:53:37 delio-xps dbus[823]: [system] activating service name='org.debian.apt' (using servicehelper)  oct 27 10:53:38 delio-xps aptdaemon: info: initializing daemon  oct 27 10:53:38 delio-xps dbus[823]: [system] activated service 'org.debian.apt'  oct 27 10:53:38 delio-xps aptdaemon.packagekit: info: initializing packagekit compat layer  oct 27 10:53:48 delio-xps kernel: [34852.205928] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.  oct 27 10:53:53 delio-xps kernel: [34857.210236] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.  oct 27 10:55:13 delio-xps kernel: [34937.266946] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.  oct 27 10:55:38 delio-xps kernel: [34962.283382] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 5 bytes away.  oct 27 10:56:38 delio-xps kernel: [35022.316427] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.  oct 27 10:56:43 delio-xps kernel: [35027.321602] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.  oct 27 10:57:23 delio-xps kernel: [35067.341895] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.  oct 27 10:59:03 delio-xps kernel: [35167.408092] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.  oct 27 10:59:08 delio-xps kernel: [35172.411130] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 5 bytes away.  oct 27 10:59:13 delio-xps kernel: [35177.417869] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 5 bytes away.  oct 27 11:00:01 delio-xps cron[22618]: (root) cmd (pkill -f indicator-power-service)  oct 27 11:00:45 delio-xps wpa_supplicant[1740]: message repeated 4 times: [ wlan0: ctrl-event-scan-started ]  oct 27 11:01:14 delio-xps wpa_supplicant[1740]: wlan0: wpa: group rekeying completed c8:0e:14:42:80:c3 [gtk=ccmp]  oct 27 11:02:45 delio-xps wpa_supplicant[1740]: wlan0: ctrl-event-scan-started   oct 27 11:03:39 delio-xps aptdaemon: info: quitting due inactivity  oct 27 11:03:39 delio-xps aptdaemon: info: quitting requested  oct 27 11:03:39 delio-xps dbus[823]: [system] activating service name='org.debian.apt' (using servicehelper)  oct 27 11:03:40 delio-xps aptdaemon: info: initializing daemon  oct 27 11:03:40 delio-xps dbus[823]: [system] activated service 'org.debian.apt'  oct 27 11:03:40 delio-xps aptdaemon.packagekit: info: initializing packagekit compat layer  oct 27 11:05:09 delio-xps sudo: pam_ecryptfs: pam_sm_authenticate: /home/delio mounted  oct 27 11:06:08 delio-xps kernel: [35592.683473] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 5 bytes away.  oct 27 11:09:28 delio-xps kernel: [35792.924462] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.  oct 27 11:10:01 delio-xps cron[24386]: (root) cmd (pkill -f indicator-power-service)  oct 27 11:10:38 delio-xps kernel: [35862.856827] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.  oct 27 11:10:43 delio-xps kernel: [35867.863068] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.  oct 27 11:11:08 delio-xps kernel: [35892.876810] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 4 bytes away.  oct 27 11:10:45 delio-xps wpa_supplicant[1740]: message repeated 4 times: [ wlan0: ctrl-event-scan-started ]  oct 27 11:11:14 delio-xps wpa_supplicant[1740]: wlan0: wpa: group rekeying completed c8:0e:14:42:80:c3 [gtk=ccmp]  oct 27 11:12:45 delio-xps wpa_supplicant[1740]: wlan0: ctrl-event-scan-started   oct 27 11:13:40 delio-xps aptdaemon: info: quitting due inactivity  oct 27 11:13:40 delio-xps aptdaemon: info: quitting requested  oct 27 11:13:58 delio-xps kernel: [36062.990345] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 3 bytes away.  oct 27 11:14:03 delio-xps kernel: [36067.995912] psmouse serio1: touchpad @ isa0060/serio1/input0 lost synchronization, throwing 2 bytes away.