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0

I had the same thing. First using LibreOffice, which i uninstalled. Then after installing Openoffice. Selecting a piece of text in order to copy it everything froze. My problem was solved by turning off "Transparency" which can be found in "Tools-Options-View". Clearly a graphical issue indeed.


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Yes. Look at /var/log/kern.log, and check the lines before the reboot (lines with kernel: [ 0.000000] were logged 0.000000 seconds after the reboot, so look at the lines preceding that one.


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I found the USB to Serial (RS232) adapter was the cause of the issue. Mixed with the long cable run it was going into a never ending restart which caused a kernal panic. I am not quite sure why but a better Adapter solved all the issues.


1

Your screenshot is displaying repeating patterns of video artifacts which are characteristic of video RAM artifacts. If the RAM in your graphics card is failing, sometimes just a small fraction of the RAM goes bad while the rest of the RAM continues to work properly. This can result in a screen that looks like a fraction of the screen has glitchy, repeating ...


1

I have been suffering freezes on my Acer E5-511 ever since 15.10, and upgraded to 16.04 2 weeks ago in the hope it would go away, but the problems continued, freeze every 10-30 min max ( and usually when moving the mouse strangely!). I finally tried this 3 days ago in /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux i8042.nopnp ...


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I don't think that will be of much help, but when I stumble on this kind of problem (screen freezing), I try to update nvidia, and if it is not enough, I remove the graphic card and remove the dust on it. That helped me a few times. I remember though that none of these methods solved my problem on Ubuntu 15.10, and I finally downgraded to 15.04 or 14.04 ...


2

I've seen a lot of other people who have problems with Universal USB Installer. For some reason, it just doesn't seem to like Ubuntu. Instead, since you're on Windows, use Rufus. It's portable, it's free, it's small and, most importantly, it works really well.


0

ACPI PCC Probe faild is probably a harmless warning message. *ERROR* rv770_set_sw_state failed is bug #1319589. Some comments there report that upgrading to kernel 4.4 helped, so try that. If you still have problems with a 4.4 kernel then ask upstream on the open freedesktop.org bug or open a new bug report there.


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Start Ubuntu into safe mode (Recovery Mode). Menu will appear with either ESC or TAB key. Check for the message where it gets stuck and reply back.


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I had the same problem some days ago. Brand new desktop-pc running 15.10. It freezes while playing media from YouTube and other web-sources, so first I blamed flash too. Strange to me was that on an old sub-notebook running exactly the same software, the errors do not occur. Further checks revealed that it crashes as well if the videos are HTML5. I suggest ...


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Could it be hardware acceleration? Try firefox safe mode. If firefox hangs, press CTRL-ALT-F1 and log in from console. Kill firefox (killall firefox, or killall -9 firefox). Log out and get back with CTRL-ALT-F7 Edit: (provided the computer is not too badly locked, of course)


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The linux kernel is having problems with the HQ6700 CPU: https://bugzilla.kernel.org/show_bug.cgi?id=109081 Thread comments say wait for kernel 4.6, but some "get it to work" with 4.4 and some special boot arguments.


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First thing to do, is check if Adobe Flash, is the latest version. Read through this question (and answers) for instructions on how to do that. How to update Flash? (version numbers don't match)



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