14.04.1 hangs during videos

[MR ZenWiz]

On Sat, Sep 6, 2014 at 4:21 AM, Colin Law <clanlaw at gmail.com> wrote:
:
>
> It is unusual for a software issue to cause such a symptom.  Does it
> not even respond to Ctrl+Alt+F1 (Ctrl+Alt+F7 to return)?

No reswponse at all - I tried those, <ctl><alt><del>.  The mouse
moved, but did not respond to any clicks.

> When you
> boot back up is there anything in /var/log/syslog when it crashed?

Sep  6 00:29:42 marbase anacron[1083]: Job `cron.daily' terminated
Sep  6 00:29:42 marbase anacron[1083]: Job `cron.weekly' started
Sep  6 00:29:42 marbase anacron[2930]: Updated timestamp for job
`cron.weekly' to 2014-09-06
Sep  6 00:29:46 marbase anacron[1083]: Job `cron.weekly' terminated
Sep  6 00:29:46 marbase anacron[1083]: Normal exit (2 jobs run)
^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@Sep
 6 01:16:49 marbase rsyslogd: [origin software="rsyslogd"
swVersion="7.4.4" x-pid="924" x-info="http://www.rsyslog.com"] start
Sep  6 01:16:49 marbase rsyslogd: rsyslogd's groupid changed to 104
Sep  6 01:16:49 marbase rsyslogd: rsyslogd's userid changed to 101
Sep  6 01:16:49 marbase kernel: [    0.000000] Initializing cgroup subsys cpuset
Sep  6 01:16:49 marbase kernel: [    0.000000] Initializing cgroup subsys cpu
Sep  6 01:16:49 marbase kernel: [    0.000000] Initializing cgroup
subsys cpuacct
Sep  6 01:16:49 marbase kernel: [    0.000000] Linux version
3.13.0-35-generic (buildd at panlong) (gcc version 4.8.2 (Ubuntu
4.8.2-19ubuntu1) ) #62-Ubuntu SMP Fri Aug 15 01:58:42 UTC 2014 (Ubuntu
3.13.0-35.62-generic 3.13.11.6)
Sep  6 01:16:49 marbase kernel: [    0.000000] Command line:
BOOT_IMAGE=/boot/vmlinuz-3.13.0-35-generic
root=UUID=e63c3fe9-c8c1-4958-b837-a3feb88a8210 ro quiet splash

> Are you sure it is not a hardware related problem, possibly
> overheating, or a RAM problem?

I'm not 100% sure, but the system runs quite cool all the time - it
has four fans that all work and the BIOS reports normal temperatures.

> Did it ever crash like that on 12.04?

Not that I recall, or maybe once in 2 1/2 years.

> Try running the RAM test overnight to give you some confidence.
>

I'll give it a shot.