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[Zero <zerofossilfuel@xxxxxxxxx>]

I had this problem as well, starting with the welcome screens during the
install. I believe it is something wrong in the Xorg video driver. My
video card is a Maxwell based nVidia GTX 750 Ti. Despite the menus being
almost completely illegible, I was able to navigate to the Settings
Manager / Additional Drivers and install the nVidia proprietary driver
352.63.

Xorg driver is to blame.

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https://bugs.launchpad.net/bugs/1510660

Title:
  Screen icons and text corrupted after 15.10 upgrade

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Since upgrading to 15.10 I am having trouble with most of the desktop
  and other icons and some text. The problem seems to be that the screen
  painting lines are out of synch.

  This means that most of the icons on the desktop are almost unreadable
  and spread laterally. Also PDF documents are unreadable. The raster
  graphics that I have imported into Inkscape are unusable.

  I am using a Dell Vostro 220 and Dell screens. The affect is the same
  whether I use a wide screen or a more conventional profile.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic i686
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: i386
  CurrentDesktop: XFCE
  Date: Tue Oct 27 18:32:31 2015
  InstallationDate: Installed on 2015-06-29 (120 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release i386 (20150422.1)
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to wily on 2015-10-23 (4 days ago)
  --- 
  ApportVersion: 2.19.1-0ubuntu4
  Architecture: i386
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,move,snap,resize,place,mousepoll,session,regex,grid,wall,vpswitch,imgpng,unitymtgrabhandles,animation,expo,workarounds,ezoom,fade,scale,unityshell,dbus]
  CompositorRunning: None
  CurrentDesktop: XFCE
  DistUpgraded: 2015-10-23 10:06:39,765 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroRelease: Ubuntu 15.10
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e22] (rev 03) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:0283]
     Subsystem: Dell Device [1028:0283]
  InstallationDate: Installed on 2015-06-29 (125 days ago)
  InstallationMedia: Xubuntu 15.04 "Vivid Vervet" - Release i386 (20150422.1)
  LightdmGreeterLog:
   ** Message: Starting lightdm-gtk-greeter 2.0.1 (Aug  7 2015, 01:24:27)
   ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/01_ubuntu.conf
   ** Message: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf.d/30_xubuntu.conf
   upstart: indicator-application main process (1170) terminated with status 1
  MachineType: Dell Inc. Vostro 220 Series
  Package: xorg 1:7.7+7ubuntu4
  PackageArchitecture: i386
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-16-generic root=UUID=493a552a-0b2a-44bb-80f4-624b2a315113 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Tags:  wily ubuntu
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  Uname: Linux 4.2.0-16-generic i686
  UpgradeStatus: Upgraded to wily on 2015-10-23 (9 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/07/2009
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.2
  dmi.board.name: 0JJW8N
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A03
  dmi.chassis.type: 3
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.2.2:bd09/07/2009:svnDellInc.:pnVostro220Series:pvr:rvnDellInc.:rn0JJW8N:rvrA03:cvnDellInc.:ct3:cvr:
  dmi.product.name: Vostro 220 Series
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Sun Nov  1 17:00:36 2015
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        UVC Camera (046d:0824) KEYBOARD, id 8
   input        Dell Dell USB Optical Mouse MOUSE, id 9
   input        DELL Dell QuietKey Keyboard KEYBOARD, id 10
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                               28686 
   vendor                                     DEL
  xserver.version: 2:1.17.2-1ubuntu9

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