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My problem is simple but I am almost one year with it, without a final solution. I have an Asus Laptop with Ubuntu 16.04, one year ago I made a reinstall of Ubuntu 16.04 (before that, my Ubuntu 16.04 works fine) and started the problems. My laptop freeze randomly, i can't use the mouse or keyboard, the screen is on but it's freeze, I can't shutdown my laptop. It can be two hours after turn it on, it can be six, it can be twelve; it happend making anything, when I update softwares, when I browse on internet, etc.

One month ago, I changed my Laptop's Cooler and then I formated the laptop and install a basic copy of Windows 10 for testing. I used it for a week and the problem didn't happend, so I formated again and install Ubuntu 16.04 (because I need it for work). Well, the problem is back. So I read all question here with this problem, but the anwsers doesn't work with me.

  • I tried to update kernel, from 4.13 to 4.15. The random freezes still. So I came back to 4.13.0-32-generic (my actual version).
  • I tried this solution with the grub and c-state. The random freezes still.
  • I tried to switch the drivers like this. The random freezes still.
  • I tried some patches of here (its hard understand what patch is useful, and follow the conversation). The random freezes still.
  • I made a Disk comprobation with GSmartControl, and my disk health is good.
  • I installed and run tlp. The random freezes still.
  • I updated intel microcode. The random freezes still.
  • I changed to kernel 4.4.0-112-generic (my actual kernel). The random still (random happend with 4.4.0-112-generic, 4.13.0-32-generic and 4.15).
  • I checked the hardware with a technician. The cooler is new (less than one month of use), and we didn't find problems on hardware. Freeze still.
  • T switch from Unity to Gnome. Random freeze still.

I really don't know, everything fails. This is my Laptop specifications like say "inxi -ACDMNSG":

System:    Host: xxxxx-U36SG Kernel: 4.4.0-112-generic x86_64 (64 bit)
           Desktop: Unity 7.4.0  Distro: Ubuntu 16.04 xenial
Machine:   Mobo: ASUSTeK model: U36SG v: 1.0
           Bios: American Megatrends v: U36SG.202 date: 10/19/2011
CPU:       Dual core Intel Core i5-2450M (-HT-MCP-) cache: 3072 KB 
           clock speeds: max: 3100 MHz 1: 2494 MHz 2: 2494 MHz 3: 2494 MHz
           4: 2494 MHz
Graphics:  Card-1: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
           Card-2: NVIDIA GF119M [GeForce 610M]
           Display Server: X.Org 1.19.5 driver: nvidia
           Resolution: 1366x768@60.02hz
           GLX Renderer: GeForce 610M/PCIe/SSE2
           GLX Version: 4.5.0 NVIDIA 384.111
Audio:     Card Intel 6 Series/C200 Series Family High Definition Audio Controller
           driver: snd_hda_intel
           Sound: Advanced Linux Sound Architecture v: k4.13.0-32-generic
Network:   Card-1: Intel Centrino Wireless-N 1030 [Rainbow Peak]
           driver: iwlwifi
           Card-2: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet driver: atl1c
Drives:    HDD Total Size: 750.2GB (4.6% used)
           ID-1: /dev/sda model: ST9750423AS size: 750.2GB

Im going to appreciate any help with this.

EDIT: I tried tlp, update intel microcode and switch to kernel 4.4.0-112-generic. Random freezes still. Please, I need help with this.

EDIT2: I have one syslog more: https://gist.github.com/ibuioli/cb509b1417f28b4dbb90e2ae804cb08f Look at Feb 10 18:21 (last log before freeze, 18:28 was the reset). It say this:

Feb 10 18:21:15 ignacio-U36SG gnome-session[2524]: [10052:10091:0210/182115.522763:ERROR:connection_factory_impl.cc(381)] Failed to connect to MCS endpoint with error -106

EDIT3: When I did cat /var/log/syslog | grep -B9 Tainted I got this one time: https://gist.github.com/ibuioli/dc48e04816627c6a9768af62622324a2

EDIT4: The freezes still even with the recent updates, the freezes happens when I am using the laptop or event when is suspended. When the freeze happens, the Power Light still ON, the CPU Light is always OFF (not blink) and, sometimes, the Bloq-Mayus Light blinks steadily.

ibuioli
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2 Answers2

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So I also had a problem similar to this. Why does my 16.04 install keep randomly freezing?

It had something to do with my wifi driver. I never go it worked out. I ended up just paying $10 for a new wifi card. (AR9280 AR5BHB92). I had a Intel 633ANHMW card running the same iwlwifi driver. Haven't had a problem since the change over.Run a cat /var/log/syslog | grep -A9 Tainted and see if you get any hits.

When you log in run tail -f /var/log/syslog in a separate terminal and see if anything suspicious populates while you are logged on.

EDIT: Correction try cat /var/log/syslog | grep -B9 Tainted . See if you have any warnings. It should tell you modules involved with the warning.

sorry for the answer but I cannot post comments yet

JesseMP
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Consider this can be a hardware problem, even if you hadn't the same issue on Windows for a week. To me, it looks like a memory problem (RAM), in a way that your computer cannot even dump what is happening.

Try to run a full memory test - usually hardware vendors ship this in the computer, otherwise you can use the memtest from Grub boot screen as well.

luisdarui
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