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[madbiologist <1268848@xxxxxxxxxxxxxxxxxx>]

There are changes in the 3.13 kernel that make Radeon HD 7xxx hardware
faster and more stable.  Ubuntu 14.04 "Trusty Tahr" currently has the
3.13.0-12.32 kernel.  Are you able to test it?

Also, the upstream 3.14-rc4 kernel has this commit (which has also been
ccd to the stable kernel series) which eliminates the display corruption
some people have had with recent kernels:

author Alex Deucher
committer Alex Deucher
commit 6d8ea7de3f5035610f3bfacbe35e7b71ad1e4663
tree 215fe5cacbd723866e8515ae41734d56dc547bd6
parent 78b035101999d8d071781778c019c387dc8bebb2

drm/radeon: fix display tiling setup on SI

Apply the same logic as CI to SI for setting up the display tiling
parameters. The num banks may vary per tiling index just like CI.

Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=71488
https://bugs.freedesktop.org/show_bug.cgi?id=73946
https://bugs.freedesktop.org/show_bug.cgi?id=74927
Signed-off-by: Alex Deucher
Cc: stable

A PPA of the 3.14-rc4 kernel is available at http://kernel.ubuntu.com
/~kernel-ppa/mainline/ and instructions on how to install and uninstall
it are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds

** Bug watch added: freedesktop.org Bugzilla #71488
   https://bugs.freedesktop.org/show_bug.cgi?id=71488

** Bug watch added: freedesktop.org Bugzilla #73946
   https://bugs.freedesktop.org/show_bug.cgi?id=73946

** Bug watch added: freedesktop.org Bugzilla #74927
   https://bugs.freedesktop.org/show_bug.cgi?id=74927

** Changed in: unity (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1268848

Title:
  Unity in 13.10 unstable with Radeon 7950

Status in “unity” package in Ubuntu:
  Incomplete

Bug description:
  About a month ago I installed a fresh Ubuntu 13.10 64bit on a i5
  machine, 8GB RAM, with Radeon 7950 graphic card. Before this, I was
  running 12.04 64bit without any graphic driver related problems.

  I tried both Catalyst versions from official repository, latest 13.12
  drivers from AMD site and open source drivers (radeon), and I can't
  tell which one was more unstable. After a few hours of use, I could
  not play any videos with any of the drivers (tried mplayer and VLC,
  both crashed with various errors), OpenGL isn't working anymore (even
  glxgears was crashing) and I had various artifacts on screen (like
  parts of window rendered on the wrong place on screen). Putting
  machine to sleep and waking it up later produced even more errors. I
  also tried to turn off various things in CCSM, without any positive
  results. Steam client had terrible flickering almost all the time, it
  was practically unusable; also about 8 of 10 times it was crashing on
  startup.

  After about two weeks of trying to make it usable, I gave up and
  installed MATE desktop. Not a single graphic error since then. Steam
  works flawlessly, 3D games also, Wine games, playing videos,
  everything.

  I kind of like how Unity works, I was using it for the last two years
  as my main desktop (on the same machine), but this behaviour is
  unexpected and utterly undesireable.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: unity 7.1.2+13.10.20131014.1-0ubuntu1
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  NonfreeKernelModules: fglrx
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  Date: Tue Jan 14 07:26:14 2014
  DistUpgraded: Fresh install
  DistroCodename: saucy
  DistroVariant: ubuntu
  DkmsStatus:
   fglrx, 13.251, 3.11.0-14-generic, x86_64: installed
   fglrx, 13.251, 3.11.0-15-generic, x86_64: installed
   vboxhost, 4.3.6, 3.11.0-14-generic, x86_64: installed
   vboxhost, 4.3.6, 3.11.0-15-generic, x86_64: installed
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950] [1002:679a] (prog-if 00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. Device [1043:0424]
  InstallationDate: Installed on 2013-12-06 (38 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  JockeyStatus:
   kmod:fglrx - ATI Fire GL (Proprietary, Enabled, In use)
   kmod:fglrx_updates - Video driver for the AMD graphics accelerators (Proprietary, Disabled, Not in use)
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic root=UUID=eab5c9d7-0979-4fae-9ed5-a26a530694de ro quiet splash vt.handoff=7
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/08/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.00
  dmi.board.name: Z68 Extreme4 Gen3
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.00:bd07/08/2011:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ68Extreme4Gen3:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.
  version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
  version.fglrx-installer: fglrx-installer N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.46-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2~saucy1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
  xserver.bootTime: Fri Jan 10 14:53:12 2014
  xserver.configfile: /etc/X11/xorg.conf
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.14.5-1ubuntu2~saucy1
  xserver.video_driver: fglrx

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