You have been subscribed to a public bug:

Sometimes the following graphics glitch is triggered where the screen starts 
moving/rotating rapidly. See https://i.imgur.com/u6j5auo.gif (gedit on LXDE).
This is triggered semi-randomly while using specific apps like Kate, gEdit, 
gVim, leafpad, embedded console inside Dolphin, KDevelop and rarely with 
Konsole.
Also triggered for a few split-seconds when I move the mouse when in fullscreen 
mode in VLC but stabilises quickly. However, everything is stable when I just 
use Chrome or Firefox, LXTerminal, Clementine and Code::Blocks, even for hours.

Whenever this is triggered, it can sometimes be fixed when I switch to desktop 
or Chrome or a different app while closing the trigger-er app while other 
times, rebooting is the only way. Sometimes (rarely) the screen becomes 
completely black after a while, with key-presses and mouse movements revealing 
the screen for split-seconds which allows me to properly shutdown/restart the 
laptop.
I've tried to Google the problem with no results, I'm not even sure what to 
search for.

And I apologize if this isn't the correct place to report. I've already
tried a couple of places with no replies or help whatsoever.

Some system details:
OS: Lubuntu 16.04
Kernel (uname -r): 4.4.0-28-generic
Laptop: Lenovo G50-80 with Intel 5500 Integrated graphics chip (Broadwell-U 
Integrated Graphics, inside Core i3-5005U)

Relevant lspci block:

00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated 
Graphics (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Lenovo Broadwell-U Integrated Graphics
        Flags: bus master, fast devsel, latency 0, IRQ 48
        Memory at c0000000 (64-bit, non-prefetchable) [size=16M]
        Memory at b0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 4000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Capabilities: [a4] PCI Advanced Features
        Kernel driver in use: i915
        Kernel modules: i915
Resolution from xrandr --verbose:

1366x768 (0x47) 72.330MHz -HSync -VSync *current +preferred
        h: width  1366 start 1414 end 1446 total 1526 skew    0 clock  47.40KHz
        v: height  768 start  770 end  775 total  790           clock  60.00Hz

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xserver-xorg-video-intel (not installed)
ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
Uname: Linux 4.4.0-28-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: KDE
Date: Sun Jul 10 15:06:25 2016
InstallationDate: Installed on 2016-05-28 (43 days ago)
InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: xserver-xorg-video-intel
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: amd64 xenial
-- 
Screen rolling/rotating horizontally when using specific applications
https://bugs.launchpad.net/bugs/1600576
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is subscribed to xorg in Ubuntu.

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