[xubuntu-users] Total system freeze, hard reboot.

[Dave Wallis]

Install windows ;)

On 04/09/2015 05:09, Fred Roller wrote:
> Hi all,
>     This one has me almost stumped and I am looking for some new 
> insight please.
>
> Symptom:
> Absolute system freeze.  No Keyboard. No mouse. No SSH. No REISUB. 
> Screen at last spot shown w/ no artifacts.  Only option is a hard 
> reboot.  Logs from Mate suite show no errors around time of crash.
>
> Through a week of web search and T&E issue seems to be tied with video 
> in some way.  Idle on w/ nothing running produces no freeze.
>
> Reproducible on thumb drive boot "try before install" option. After boot:
> ctrl+alt+t
> sudo apt-get install xubuntu-restricted-extras vlc -y
> /usr/share/doc/libdvdread4/install-css.sh (to enable dvd play)
> open vlc -> play movie
>
> This will cause a total system freeze. Hard boot required.
>
> from this bug report:
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/993187 
>
>
> decided to turn off composer:
> All settings --> Windows Manager Tweaks --> Compositor --> Uncheck 
> "Enable display compositing"
>
> This is where I am atm.
>
> My system is:
> Acer ES1-711-P14W
> Xubuntu 15.04
>     Kernel 2.19.0-26-generic (x86_64)
> Intel Pentium CPU N3540 @ 2.16 GHz x4
> 8 GB Ram
> gpu Intel atom processor z36xxx/z37xxx
> Ethernet Realtek RTL8111/8168/8411 Express Gigabit Ethernet Controller
>
> Note: There is some discussions on the gigabit connections causing a 
> total freeze up.  This was dismissed when I disengaged all connections 
> and still reproduced the freeze.
>
> Loaded MATE system log and psensor early on to monitor.  Logs, as 
> mentioned show no errors; so I presume the crash does not give the 
> system time to register. psensor was showing over heating (no air 
> conditioning here) and processors were set for "performance". I reset 
> the processors for "powersave" and have had normal temps and still am 
> freezing up. This dismissed the overheating theory.  I have no way to 
> monitor GPU temperatures but given the freezes are random in time, 
> i.e. 5 min to 2 hrs. I have put this at a "not likely" status.
>
> Status: waiting while I push the system with compositor turned OFF.
>
> Any ideas would be appreciated if this fails.  If this works, then 
> ideas to fix.  I don't like having to turn off functionality to make 
> the system work.
>
> FYI I have same OS from same install thumb-drive installed on an ASUS 
> celeron notebook and works fine out of the box.
>
> Thanks Gang
>
> -- Fred
>