Hey Christopher,
Always a pleasure to contribute.

I have switched over to nouveau, but since the issue occurs INconsistently
I cannot immediately reproduce the bug condition. I'll most likely have to
wait and watch for suspend-resume cycles to check if the bug gets
reproduced .

Meanwhile there seems to be bug:  title bar appearing transparent with
nouveau as I have posted on bug tracker

On Mon, Jun 13, 2016, 10:05 AM Christopher M. Penalver <
<email address hidden>> wrote:

> John Smith, thank you for reporting this and helping make Ubuntu better.
>
> To clarify, if you remove the nvidia drivers is this still reproducible?
>
> ** Tags added: latest-bios-a08
>
> ** Changed in: xorg (Ubuntu)
>    Importance: Undecided => Medium
>
> ** Changed in: xorg (Ubuntu)
>        Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1576228
>
> Title:
>   Black borders around all windows
>
> Status in xorg package in Ubuntu:
>   Incomplete
>
> Bug description:
>   There seems to be a bug somewhere  in [ kernel OR xorg OR nvidia
> proprietary driver ] in the display stack.
>   After the laptop ( dell XPS L501X ) resumes from suspend there are wide
> black borders around all windows with close/minimize/maximize buttons
> blacked out.
>
>   [ image attached: black border on all windows ]
>
>   It occurs inconsistently, as it doesn't happen every time the computer
> resumes.
>   ( Slight possibility that it usually occurs after long suspend, i.e.
> resuming after long time ).
>
> =================================================================================
>
>   Also there seems to be certain amount of performance degradation as if
>   the graphics driver was running at half-strength ( and I don't  mean
>   software-only rendering, neither do I mean switch over to nouveau open
>   source driver )
>
>   The "nVidia X Server Settings" app suggests its in maximum performance
>   mode.
>
>
> ==================================================================================
>
>   Adhoc Workaround: switch display layout ( I have an external
>   monitor/TV attached to HDMI port ) changing anything such as
>   arrangement or resolution of the displays, etcetera... corrects the
>   black border issue ( and also possibly performance issue )
>
>   This bug has been present in Ubuntu 14.04, 15.04, 15.10 and now in
>   16.04 as well. ( It was probably present before that as well )
>
>
> ==================================================================================
>
>   p.s. this is only partial duplicate of black border issue as the black
>   borders appear on every window, not just windows with new header bars
>   or client side decoration...
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: xorg 1:7.7+13ubuntu3
>   ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
>   Uname: Linux 4.4.0-21-generic x86_64
>   NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
>   .proc.driver.nvidia.gpus.0000.02.00.0: Error: [Errno 21] Is a directory:
> '/proc/driver/nvidia/gpus/0000:02:00.0'
>   .proc.driver.nvidia.registry: Binary: ""
>   .proc.driver.nvidia.version:
>    NVRM version: NVIDIA UNIX x86_64 Kernel Module  361.42  Tue Mar 22
> 18:10:58 PDT 2016
>    GCC version:  gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2)
>   .proc.driver.nvidia.warnings.fbdev:
>    Your system is not currently configured to drive a VGA console
>    on the primary VGA device. The NVIDIA Linux graphics driver
>    requires the use of a text-mode VGA console. Use of other console
>    drivers including, but not limited to, vesafb, may result in
>    corruption and stability problems, and is not supported.
>   .tmp.unity_support_test.0:
>
>   ApportVersion: 2.20.1-0ubuntu2
>   Architecture: amd64
>   BootLog: [ [0;32m  OK   [0m] Started LSB: Speech Dispatcher.
>   CompizPlugins: No value set for
> `/apps/compiz-1/general/screen0/options/active_plugins'
>   CompositorRunning: compiz
>   CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
>   CompositorUnredirectFSW: true
>   CurrentDesktop: Unity
>   Date: Thu Apr 28 18:43:37 2016
>   DistUpgraded: Fresh install
>   DistroCodename: xenial
>   DistroVariant: ubuntu
>   DkmsStatus:
>    bbswitch, 0.8, 4.4.0-21-generic, x86_64: installed
>    nvidia-361, 361.42, 4.4.0-21-generic, x86_64: installed
>   ExtraDebuggingInterest: Yes, if not too technical
>   GraphicsCard:
>    NVIDIA Corporation GF108M [GeForce GT 435M] [10de:0df2] (rev a1)
> (prog-if 00 [VGA controller])
>      Subsystem: Dell GF108M [GeForce GT 435M] [1028:046e]
>   InstallationDate: Installed on 2016-04-23 (4 days ago)
>   InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
> (20160420.1)
>   MachineType: Dell Inc. XPS L501X
>   ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-21-generic
> root=UUID=f657e606-ac2a-49cd-9f3e-fca6a315338d ro rootflags=subvol=@ quiet
> splash vt.handoff=7
>   SourcePackage: xorg
>   Symptom: display
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 07/26/2011
>   dmi.bios.vendor: Dell Inc.
>   dmi.bios.version: A08
>   dmi.board.name: 0J1VR3
>   dmi.board.vendor: Dell Inc.
>   dmi.board.version: A08
>   dmi.chassis.type: 8
>   dmi.chassis.vendor: Dell Inc.
>   dmi.chassis.version: A08
>   dmi.modalias:
> dmi:bvnDellInc.:bvrA08:bd07/26/2011:svnDellInc.:pnXPSL501X:pvrA08:rvnDellInc.:rn0J1VR3:rvrA08:cvnDellInc.:ct8:cvrA08:
>   dmi.product.name: XPS L501X
>   dmi.product.version: A08
>   dmi.sys.vendor: Dell Inc.
>   version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
>   version.ia32-libs: ia32-libs N/A
>   version.libdrm2: libdrm2 2.4.67-1
>   version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
>   version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
>   version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
>   version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
>   version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
>   version.xserver-xorg-input-evdev: xserver-xorg-input-evdev
> 1:2.10.1-1ubuntu2
>   version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
>   version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.99.917+git20160325-1ubuntu1
>   version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
> 1:1.0.12-1build2
>   xserver.bootTime: Thu Apr 28 17:09:49 2016
>   xserver.configfile: default
>   xserver.errors:
>
>   xserver.logfile: /var/log/Xorg.0.log
>   xserver.outputs:
>
>   xserver.version: 2:1.18.3-1ubuntu2
>
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>