Public bug reported:

The system was running ubuntu 12.04 without any problems, quite fast and
definitly worth keeping, I was able to play 3D games at decent quality
while using official nvidia drivers. Overall a pretty stable system
based on an Intel 965 Chipset and a Geforce 7600.

I did a clean install of 16.04 and added nvidia-graphics-
drivers-304-updates. At first the system was horribly unstable,
displayed garbage at the slighted GPU load, even starting frozen bubble
in full screen made lightdm restart.

After using "dconf write
/org/compiz/profiles/unity/plugins/opengl/enable-x11-sync false" the
system became stable but display is still often distorted, missing
picture elements, doesn't draw all elements in firefox, scrolling of
firefox and terminal output is missing parts. This happens around once
every minute so it is still workable but unprofessional. Happens a lot
more often in Firefox than any other application.

Also I have the feeling lots of stuff is working a lot slower than it
did in 12.04, e.g. starting frozen bubble in full screen takes a lot
longer than earlier.

I think this error is somewhere between nvidia drivers, compiz and
firefox.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: nvidia-304-updates 304.131-0ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic i686
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86 Kernel Module  304.131  Sun Nov  8 21:44:08 PST 
2015
 GCC version:  gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2)
.tmp.unity_support_test.0:
 
ApportVersion: 2.20.1-0ubuntu2
Architecture: i386
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: Sun May  8 12:36:09 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus: nvidia-304-updates, 304.131, 4.4.0-22-generic, i686: installed
GraphicsCard:
 NVIDIA Corporation G73 [GeForce 7600 GS] [10de:0392] (rev a1) (prog-if 00 [VGA 
controller])
   Subsystem: Point of View BV G73 [GeForce 7600 GS] [1acc:8132]
InstallationDate: Installed on 2016-05-05 (3 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
MachineType: Gigabyte Technology Co., Ltd. 965P-DS3
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic 
root=UUID=79fb27e9-d5d1-48c8-9210-7045256917c0 ro quiet splash nomodeset
SourcePackage: nvidia-graphics-drivers-304-updates
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/28/2007
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F12
dmi.board.name: 965P-DS3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: 
dmi:bvnAwardSoftwareInternational,Inc.:bvrF12:bd05/28/2007:svnGigabyteTechnologyCo.,Ltd.:pn965P-DS3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rn965P-DS3:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: 965P-DS3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
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: Sun May  8 12:27:11 2016
xserver.configfile: default
xserver.devices:
 input        Power Button         KEYBOARD, id 6
 input        Power Button         KEYBOARD, id 7
 input        Microsoft Microsoft IntelliMouse® Explorer MOUSE, id 8
 input        HID 046a:0001        KEYBOARD, id 9
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 
xserver.version: 2:1.18.3-1ubuntu2

** Affects: nvidia-graphics-drivers-304-updates (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug compiz-0.9 i386 ubuntu xenial

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You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers-304-updates in Ubuntu.
https://bugs.launchpad.net/bugs/1579501

Title:
  graphics distorted, lightdm restarting

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