Public bug reported:

I'm new to Ubuntu One so I don't really know what info to submit, but my
problem is as follows:

Everything seems to work just fine in 16.04 - except for one thing:
Dash. When I click the icon (or press the superkey) the screen goes sort
of crazy: coloured strips and odd stuff appear. Sometimes the computer
freezes and I have to start all over again; sometimes it is possible to
save the day by (fairly quickly)clicking the Dash icon once again - and
sometimes things work out by themselves. I have searched for a solution
on the internet, but in vain. Maybe it has something to do with memory
mapping?

Computer info: AMD Athlon 64 Processor 3500+ with 3 GB RAM (I think it
was originally 1 GB but I extended it some years ago) in HP Pavilion
3510no desktop (old stuff; probably at least 10 years old). Graphics
Gallium 0.4 on NV 46 (according to Settings - what do I know ...)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-97.120-generic 4.4.87
Uname: Linux 4.4.0-97-generic x86_64
.tmp.unity_support_test.0:
 
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Wed Oct 25 14:52:42 2017
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation G72 [GeForce 7300 LE] [10de:01d1] (rev a1) (prog-if 00 [VGA 
controller])
   Subsystem: ASUSTeK Computer Inc. G72 [GeForce 7300 LE] [1043:0346]
InstallationDate: Installed on 2017-06-27 (120 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
 Bus 001 Device 002: ID 0951:1666 Kingston Technology DataTraveler G4
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 002: ID 058f:9360 Alcor Micro Corp. 8-in-1 Media Card Reader
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: HP Pavilion 061 RA975AA-ABS t3510.se
ProcEnviron:
 LANGUAGE=sv
 PATH=(custom, no user)
 LANG=sv_SE.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-97-generic 
root=UUID=099bfe13-94a1-482f-b3aa-13341d87945d ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/16/2006
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 3.11
dmi.board.name: Nash
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.type: 3
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr3.11:bd06/16/2006:svnHPPavilion061:pnRA975AA-ABSt3510.se:pvr0nx0211RE101NASHM00:rvnMSI:rnNash:rvr1.0:cvn:ct3:cvr:
dmi.product.name: RA975AA-ABS t3510.se
dmi.product.version: 0nx0211RE101NASHM00
dmi.sys.vendor: HP Pavilion 061
version.compiz: compiz 1:0.9.12.2+16.04.20160823-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.7
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+git20160325-1ubuntu1.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Wed Oct 25 14:43:13 2017
xserver.configfile: default
xserver.devices:
 input        Power Button         KEYBOARD, id 6
 input        Power Button         KEYBOARD, id 7
 input        AT Translated Set 2 keyboard KEYBOARD, id 8
 input        ImPS/2 Generic Wheel Mouse MOUSE, id 9
xserver.errors:
 Failed to load module "nvidia" (module does not exist, 0)
 Failed to load module "nvidia" (module does not exist, 0)
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs: Output                                    TV-1           VGA-1
xserver.version: 2:1.18.4-0ubuntu0.7
xserver.video_driver: nouveau

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


** Tags: amd64 apport-bug compiz-0.9 ubuntu xenial

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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1727733

Title:
  Screen acts strangely when clicking Dash icon

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