Ubuntu: Random Freezing with ubuntu 14.04



Question:

Installed ubuntu 14.04 and the system freezes at least once a day at what seems to be random times.

By Freezing I mean the mouse keyboard and screen won't react at all. This will happen no matter if the system is being , or it is idle with lockscreen on.

I have been having to hold the power button to my dektop (powerwash) in order to restart every time.

In my log var/logs/syslog it looks like there were processes running even after the screen froze. Considering what tasks were completed I believe the system froze last somewhere between 11 and 12. 12:50 is when I restarted the desktop.

If anyone can see the problem in my syslog or tell me where else to look it would be a great help. I don't even know where to begin.

    Mar  8 09:43:00 ray-desktop kernel: [ 4315.744847] [drm:drm_mode_addfb2] [FB:50]  Mar  8 09:43:00 ray-desktop kernel: [ 4315.761520] [drm:drm_mode_addfb2] [FB:51]  Mar  8 09:43:00 ray-desktop kernel: [ 4315.779039] [drm:drm_mode_addfb2] [FB:52]  Mar  8 09:43:00 ray-desktop kernel: [ 4315.795394] [drm:drm_mode_addfb2] [FB:53]  Mar  8 09:43:00 ray-desktop kernel: [ 4316.147743] [drm:intel_crtc_cursor_set_obj] cursor off  Mar  8 09:43:00 ray-desktop kernel: [ 4316.147759] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 2  Mar  8 09:43:00 ray-desktop kernel: [ 4316.147765] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 2  Mar  8 09:43:00 ray-desktop kernel: [ 4316.147771] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=2, B: plane=2, cursor=2, SR: plane=51, cursor=2  Mar  8 09:43:00 ray-desktop kernel: [ 4316.147778] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:43:01 ray-desktop kernel: [ 4316.427894] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 6  Mar  8 09:43:01 ray-desktop kernel: [ 4316.427905] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 10  Mar  8 09:43:01 ray-desktop kernel: [ 4316.427911] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=6, B: plane=2, cursor=2, SR: plane=51, cursor=10  Mar  8 09:43:01 ray-desktop kernel: [ 4316.427919] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:43:02 ray-desktop kernel: [ 4317.463828] [drm:drm_mode_addfb2] [FB:54]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.481212] [drm:drm_mode_addfb2] [FB:55]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.497587] [drm:drm_mode_addfb2] [FB:56]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.684299] [drm:drm_mode_addfb2] [FB:57]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.897821] [drm:drm_mode_addfb2] [FB:58]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.913903] [drm:drm_mode_addfb2] [FB:59]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.931722] [drm:drm_mode_addfb2] [FB:60]  Mar  8 09:43:02 ray-desktop kernel: [ 4317.949703] [drm:drm_mode_addfb2] [FB:61]  Mar  8 09:43:07 ray-desktop kernel: [ 4322.292837] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:43:09 ray-desktop kernel: [ 4325.078441] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:43:09 ray-desktop kernel: [ 4325.096236] [drm:drm_mode_addfb2] [FB:49]  Mar  8 09:43:09 ray-desktop kernel: [ 4325.113447] [drm:drm_mode_addfb2] [FB:50]  Mar  8 09:43:10 ray-desktop kernel: [ 4325.214863] [drm:drm_mode_addfb2] [FB:51]  Mar  8 09:43:10 ray-desktop kernel: [ 4325.416992] [drm:drm_mode_addfb2] [FB:52]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.273145] [drm:drm_mode_addfb2] [FB:53]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.289811] [drm:drm_mode_addfb2] [FB:54]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.306292] [drm:drm_mode_addfb2] [FB:55]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.323071] [drm:drm_mode_addfb2] [FB:56]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.340752] [drm:drm_mode_addfb2] [FB:57]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.358048] [drm:drm_mode_addfb2] [FB:58]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.374379] [drm:drm_mode_addfb2] [FB:59]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.394037] [drm:drm_mode_addfb2] [FB:60]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.410758] [drm:drm_mode_addfb2] [FB:61]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.427707] [drm:drm_mode_addfb2] [FB:62]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.443585] [drm:drm_mode_addfb2] [FB:63]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.460723] [drm:drm_mode_addfb2] [FB:64]  Mar  8 09:43:12 ray-desktop kernel: [ 4327.553663] [drm:intel_crtc_cursor_set_obj] cursor off  Mar  8 09:43:12 ray-desktop kernel: [ 4327.553676] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 2  Mar  8 09:43:12 ray-desktop kernel: [ 4327.553679] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 2  Mar  8 09:43:12 ray-desktop kernel: [ 4327.553682] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=2, B: plane=2, cursor=2, SR: plane=51, cursor=2  Mar  8 09:43:12 ray-desktop kernel: [ 4327.553687] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:43:17 ray-desktop kernel: [ 4332.315950] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:43:21 ray-desktop kernel: [ 4336.605457] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:43:27 ray-desktop kernel: [ 4343.134308] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:43:28 ray-desktop kernel: [ 4343.217508] [drm:drm_mode_addfb2] [FB:46]  Mar  8 09:43:28 ray-desktop kernel: [ 4343.237526] [drm:drm_mode_addfb2] [FB:47]  Mar  8 09:43:28 ray-desktop kernel: [ 4343.404311] [drm:drm_mode_addfb2] [FB:48]  Mar  8 09:43:39 ray-desktop kernel: [ 4354.223073] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:43:46 ray-desktop kernel: [ 4361.683700] [drm:drm_mode_addfb2] [FB:46]  Mar  8 09:43:47 ray-desktop kernel: [ 4363.222697] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:43:52 ray-desktop kernel: [ 4367.492614] [drm:drm_mode_addfb2] [FB:47]  Mar  8 09:43:58 ray-desktop kernel: [ 4373.658374] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:44:00 ray-desktop kernel: [ 4375.443599] [drm:drm_mode_addfb2] [FB:46]  Mar  8 09:44:09 ray-desktop kernel: [ 4384.694340] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:44:09 ray-desktop kernel: [ 4384.710745] [drm:drm_mode_addfb2] [FB:47]  Mar  8 09:44:22 ray-desktop kernel: [ 4397.637399] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:44:25 ray-desktop kernel: [ 4400.741757] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:44:27 ray-desktop kernel: [ 4402.726987] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:44:27 ray-desktop kernel: [ 4402.744098] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:44:37 ray-desktop kernel: [ 4413.249817] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:44:47 ray-desktop kernel: [ 4422.968763] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.001168] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 6  Mar  8 09:44:54 ray-desktop kernel: [ 4430.001173] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 10  Mar  8 09:44:54 ray-desktop kernel: [ 4430.001177] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=6, B: plane=2, cursor=2, SR: plane=51, cursor=10  Mar  8 09:44:54 ray-desktop kernel: [ 4430.001182] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:44:54 ray-desktop kernel: [ 4430.042514] [drm:drm_mode_addfb2] [FB:48]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.058329] [drm:drm_mode_addfb2] [FB:49]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.075287] [drm:drm_mode_addfb2] [FB:50]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.092659] [drm:drm_mode_addfb2] [FB:51]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.109440] [drm:drm_mode_addfb2] [FB:52]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.125369] [drm:drm_mode_addfb2] [FB:53]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.142871] [drm:drm_mode_addfb2] [FB:54]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.159298] [drm:drm_mode_addfb2] [FB:55]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.169468] [drm:intel_crtc_cursor_set_obj] cursor off  Mar  8 09:44:54 ray-desktop kernel: [ 4430.169479] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 2  Mar  8 09:44:54 ray-desktop kernel: [ 4430.169483] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 2  Mar  8 09:44:54 ray-desktop kernel: [ 4430.169486] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=2, B: plane=2, cursor=2, SR: plane=51, cursor=2  Mar  8 09:44:54 ray-desktop kernel: [ 4430.169490] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:44:54 ray-desktop kernel: [ 4430.175327] [drm:drm_mode_addfb2] [FB:46]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.192360] [drm:drm_mode_addfb2] [FB:56]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.209190] [drm:drm_mode_addfb2] [FB:57]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.226080] [drm:drm_mode_addfb2] [FB:58]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.242318] [drm:drm_mode_addfb2] [FB:59]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.258232] [drm:drm_mode_addfb2] [FB:60]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.274703] [drm:drm_mode_addfb2] [FB:61]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.291413] [drm:drm_mode_addfb2] [FB:62]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.308201] [drm:drm_mode_addfb2] [FB:63]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.327979] [drm:drm_mode_addfb2] [FB:64]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.345819] [drm:drm_mode_addfb2] [FB:65]  Mar  8 09:44:54 ray-desktop kernel: [ 4430.369626] [drm:drm_mode_addfb2] [FB:66]  Mar  8 09:44:55 ray-desktop kernel: [ 4431.251777] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 6  Mar  8 09:44:55 ray-desktop kernel: [ 4431.251787] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 10  Mar  8 09:44:55 ray-desktop kernel: [ 4431.251794] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=6, B: plane=2, cursor=2, SR: plane=51, cursor=10  Mar  8 09:44:55 ray-desktop kernel: [ 4431.251801] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:44:57 ray-desktop kernel: [ 4432.768173] [drm:drm_mode_addfb2] [FB:37]  Mar  8 09:44:57 ray-desktop kernel: [ 4433.028731] [drm:drm_mode_addfb2] [FB:45]  Mar  8 09:44:57 ray-desktop kernel: [ 4433.045945] [drm:drm_mode_addfb2] [FB:46]  Mar  8 09:44:59 ray-desktop kernel: [ 4435.115462] [drm:drm_mode_addfb2] [FB:47]  Mar  8 09:44:59 ray-desktop kernel: [ 4435.132120] [drm:drm_mode_addfb2] [FB:48]  Mar  8 09:44:59 ray-desktop kernel: [ 4435.151558] [drm:drm_mode_addfb2] [FB:49]  Mar  8 09:44:59 ray-desktop kernel: [ 4435.165321] [drm:drm_mode_addfb2] [FB:50]  Mar  8 09:44:59 ray-desktop kernel: [ 4435.181317] [drm:drm_mode_addfb2] [FB:51]  Mar  8 09:44:59 ray-desktop kernel: [ 4435.198153] [drm:drm_mode_addfb2] [FB:52]  Mar  8 09:45:17 ray-desktop kernel: [ 4453.039454] [drm:i915_gem_open]   Mar  8 09:45:18 ray-desktop kernel: [ 4453.612393] [drm:i915_gem_context_create_ioctl] HW context 1 created  Mar  8 09:45:18 ray-desktop kernel: [ 4453.616257] [drm:i915_gem_context_destroy_ioctl] HW context 1 destroyed  Mar  8 09:45:21 ray-desktop kernel: [ 4456.925566] [drm:intel_crtc_cursor_set_obj] cursor off  Mar  8 09:45:21 ray-desktop kernel: [ 4456.925578] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 2  Mar  8 09:45:21 ray-desktop kernel: [ 4456.925582] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 2  Mar  8 09:45:21 ray-desktop kernel: [ 4456.925585] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=2, B: plane=2, cursor=2, SR: plane=51, cursor=2  Mar  8 09:45:21 ray-desktop kernel: [ 4456.925589] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:45:21 ray-desktop kernel: [ 4457.133981] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 6  Mar  8 09:45:21 ray-desktop kernel: [ 4457.133988] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 10  Mar  8 09:45:21 ray-desktop kernel: [ 4457.133992] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=6, B: plane=2, cursor=2, SR: plane=51, cursor=10  Mar  8 09:45:21 ray-desktop kernel: [ 4457.133997] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 09:49:53 ray-desktop kernel: [ 4729.068579] [drm:i915_gem_open]   Mar  8 09:49:53 ray-desktop kernel: [ 4729.165197] [drm:i915_gem_context_create_ioctl] HW context 1 created  Mar  8 09:49:53 ray-desktop kernel: [ 4729.172257] [drm:i915_gem_context_destroy_ioctl] HW context 1 destroyed  Mar  8 09:51:17 ray-desktop AptDaemon: INFO: Quitting due to inactivity  Mar  8 09:51:17 ray-desktop AptDaemon: INFO: Quitting was requested  Mar  8 09:53:07 ray-desktop kernel: [ 4924.026964] perf interrupt took too long (4388 > 2500), lowering kernel.perf_event_max_sample_rate to 50000  Mar  8 10:04:03 ray-desktop kernel: [ 5580.985453] [drm:intel_crtc_cursor_set_obj] cursor off  Mar  8 10:04:03 ray-desktop kernel: [ 5580.985469] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 2  Mar  8 10:04:03 ray-desktop kernel: [ 5580.985475] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 2  Mar  8 10:04:03 ray-desktop kernel: [ 5580.985481] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=2, B: plane=2, cursor=2, SR: plane=51, cursor=2  Mar  8 10:04:03 ray-desktop kernel: [ 5580.985489] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 10:09:02 ray-desktop CRON[4528]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))  Mar  8 10:17:01 ray-desktop CRON[4544]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)  Mar  8 10:39:01 ray-desktop CRON[4564]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))  Mar  8 10:51:27 ray-desktop kernel: [ 8431.177109] [drm:g4x_check_srwm] SR watermark: display plane 51, cursor 6  Mar  8 10:51:27 ray-desktop kernel: [ 8431.177118] [drm:g4x_check_srwm] SR watermark: display plane 100, cursor 10  Mar  8 10:51:27 ray-desktop kernel: [ 8431.177125] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=150, cursor=6, B: plane=2, cursor=2, SR: plane=51, cursor=10  Mar  8 10:51:27 ray-desktop kernel: [ 8431.177133] [drm:intel_set_memory_cxsr] memory self-refresh is enabled  Mar  8 10:51:28 ray-desktop kernel: [ 8431.179894] [drm:intel_set_memory_cxsr] memory self-refresh is disabled  Mar  8 10:51:28 ray-desktop kernel: [ 8431.214810] [drm:intel_set_memory_cxsr] memory self-refresh is disabled  Mar  8 10:51:28 ray-desktop kernel: [ 8431.214822] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0  Mar  8 10:51:28 ray-desktop kernel: [ 8431.214831] [drm:intel_display_power_put] disabling dpio-common  Mar  8 10:51:28 ray-desktop kernel: [ 8431.238785] [drm:intel_display_power_put] disabling display  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255040] [drm:check_encoder_state] [ENCODER:29:DAC-29]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255050] [drm:check_encoder_state] [ENCODER:30:TMDS-30]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255055] [drm:check_encoder_state] [ENCODER:35:TMDS-35]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255060] [drm:check_crtc_state] [CRTC:20]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255066] [drm:check_crtc_state] [CRTC:25]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255108] [drm:drm_mode_setcrtc] [CRTC:20]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255114] [drm:intel_crtc_set_config] [CRTC:20] [NOFB]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255122] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:20], mode_changed=1, fb_changed=0  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255127] [drm:intel_modeset_stage_output_state] [CONNECTOR:28:VGA-1] to [NOCRTC]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255132] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255136] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255141] [drm:intel_modeset_stage_output_state] crtc disabled, full mode switch  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255147] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 0, prepare: 0, disable: 1  Mar  8 10:51:28 ray-desktop kernel: [ 8431.255159] [drm:intel_display_power_get] enabling display  Mar  8 10:51:28 ray-desktop kernel: [ 8431.279019] [drm:i915_redisable_vga_power_on] Something enabled VGA plane, disabling it  Mar  8 10:51:28 ray-desktop kernel: [ 8431.311005] [drm:vlv_update_cdclk] Current CD clock rate: 200000 kHz  Mar  8 10:51:28 ray-desktop kernel: [ 8431.311016] [drm:intel_display_power_put] disabling display  Mar  8 10:51:28 ray-desktop kernel: [ 8431.334986] [drm:check_encoder_state] [ENCODER:29:DAC-29]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.334995] [drm:check_encoder_state] [ENCODER:30:TMDS-30]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.335001] [drm:check_encoder_state] [ENCODER:35:TMDS-35]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.335006] [drm:check_crtc_state] [CRTC:20]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.335011] [drm:check_crtc_state] [CRTC:25]  Mar  8 10:51:28 ray-desktop kernel: [ 8431.335052] [drm:intel_crtc_cursor_set_obj] cursor off  Mar  8 11:09:01 ray-desktop CRON[4605]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))  Mar  8 11:17:01 ray-desktop CRON[4620]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)  Mar  8 11:33:31 ray-desktop kernel: [10959.173242] perf interrupt took too long (5003 > 5000), lowering kernel.perf_event_max_sample_rate to 25000  Mar  8 11:39:01 ray-desktop CRON[4631]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))  Mar  8 12:09:01 ray-desktop CRON[4652]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))  Mar  8 12:17:01 ray-desktop CRON[4666]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)  Mar  8 12:39:01 ray-desktop CRON[4680]: (root) CMD (  [ -x /usr/lib/php5/maxlifetime ] && [ -x /usr/lib/php5/sessionclean ] && [ -d /var/lib/php5 ] && /usr/lib/php5/sessionclean /var/lib/php5 $(/usr/lib/php5/maxlifetime))  Mar  8 12:50:36 ray-desktop rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="660" x-info="http://www.rsyslog.com"] start  


Solution:1

Try troubleshooting it with a little help from here.


Solution:2

Alt+Ctrl+F1 would lead you to a full functional command line interface, you could login, do whatever you want. And it's much more stable than the graphical part of Ubuntu. Alt+Ctrl+F7 would takes you back to the graphical interface.

Although the GUI freezes, you can still use the command line interface. This enable you better diagnose your system. You can kill problematic process. Restarting Xserver can solve the problem temporarily. In the worst case, you could safely shutdown your computer.


Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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