Public bug reported:

When I run sauerbraten in fullscreen mode in Ubuntu 18.10, there are
"skips" in the animation of the rotating cubes.  Upon further
"evaluation", I noticed the system mouse pointer "popping up" briefly at
the moment of the glitch(near the crosshair) about once a second.  When
not in fullscreen, the animation is smooth(no visible skips/glitches)
and I don't see the system mouse pointer "popping up" every second.  It
works fine in fullscreen mode in Ubuntu 18.04.

To recreate/observe the problem:
    0. Boot into Ubuntu 18.10
    1. Install sauerbraten
    2. Start sauerbraten
    3. Set sauerbraten to fullscreen 
mode(sauerbraten->options..->display->fullscreen)
    4. Start a game(I like sauerbraten->bot match->start match->ctf->europium)
    5. Move forward with the 'w' key(steer with the mouse) to some rotating 
cubes.  Here you should notice the glitch in rotation and the _system_ mouse 
pointer flickering in and out near the crosshair at a rate of about once a 
second.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: xorg 1:7.7+19ubuntu8
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperVersion: 1.399
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 30 21:46:28 2018
DistUpgraded: Fresh install
DistroCodename: cosmic
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 
09) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. 3rd Gen Core processor Graphics Controller 
[1043:2102]
LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
MachineType: ASUSTeK COMPUTER INC. K55A
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz boot=casper 
iso-scan/filename=/Downloads/username-18.10-desktop-amd64.iso ipv6.disable=1 
net.ifnames=0 quiet splash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/25/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K55A.407
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K55A
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrK55A.407:bd12/25/2012:svnASUSTeKCOMPUTERINC.:pnK55A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK55A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: K
dmi.product.name: K55A
dmi.product.sku: ASUS-NotebookSKU
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.95-1
version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3

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


** Tags: amd64 apport-bug cosmic ubuntu

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https://bugs.launchpad.net/bugs/1800749

Title:
  Ubuntu 18.10 doesn't like fullscreen mode for sauerbraten(game)

Status in xorg package in Ubuntu:
  New

Bug description:
  When I run sauerbraten in fullscreen mode in Ubuntu 18.10, there are
  "skips" in the animation of the rotating cubes.  Upon further
  "evaluation", I noticed the system mouse pointer "popping up" briefly
  at the moment of the glitch(near the crosshair) about once a second.
  When not in fullscreen, the animation is smooth(no visible
  skips/glitches) and I don't see the system mouse pointer "popping up"
  every second.  It works fine in fullscreen mode in Ubuntu 18.04.

  To recreate/observe the problem:
      0. Boot into Ubuntu 18.10
      1. Install sauerbraten
      2. Start sauerbraten
      3. Set sauerbraten to fullscreen 
mode(sauerbraten->options..->display->fullscreen)
      4. Start a game(I like sauerbraten->bot match->start match->ctf->europium)
      5. Move forward with the 'w' key(steer with the mouse) to some rotating 
cubes.  Here you should notice the glitch in rotation and the _system_ mouse 
pointer flickering in and out near the crosshair at a rate of about once a 
second.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: xorg 1:7.7+19ubuntu8
  ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
  Uname: Linux 4.18.0-10-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperVersion: 1.399
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct 30 21:46:28 2018
  DistUpgraded: Fresh install
  DistroCodename: cosmic
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] 
(rev 09) (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. 3rd Gen Core processor Graphics 
Controller [1043:2102]
  LiveMediaBuild: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
  MachineType: ASUSTeK COMPUTER INC. K55A
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz boot=casper 
iso-scan/filename=/Downloads/username-18.10-desktop-amd64.iso ipv6.disable=1 
net.ifnames=0 quiet splash
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/25/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: K55A.407
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: K55A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrK55A.407:bd12/25/2012:svnASUSTeKCOMPUTERINC.:pnK55A:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnK55A:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: K
  dmi.product.name: K55A
  dmi.product.sku: ASUS-NotebookSKU
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.95-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.1-3ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3

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