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[Bug 1375194] Re: lightdm session constantly switches screen appearance

 

Simon Lambourn, just to clarify, when you switched graphics cards the
problem stopped?

** Tags removed: bios-outdated-1801
** Tags added: latest-bios-1801

** Changed in: xorg (Ubuntu)
   Importance: Low => Medium

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https://bugs.launchpad.net/bugs/1375194

Title:
  lightdm session constantly switches screen appearance

Status in xorg package in Ubuntu:
  Expired

Bug description:
  After installing regular software updates on 23 Sept, my screen
  session has become almost unusable.  The screen "appearance" (font,
  button style, window menu bar location) alternates about twice a
  second between my usual settings and what I guess are the default un-
  decorated settings.   This means that text, buttons, and input areas
  are often moving around on the screen as the font size changes or the
  window menu bar comes and goes.

  In addition, keyboard input characters take a variable time to appear (up to a few seconds?) and can appear in the wrong order.
  CPU utilisation is much higher when I am logged on.   See TOP output below.   I get the same problems with any one of Chromium, Firefox, Thunderbird, Ubuntu Software Centre, BASH terminal window.

  When I first sign on, I get a message "system software problem
  detected" in a panel by itself, before the desktop is displayed, and
  again after the desktop is displayed.  This is connected with the bug,
  but I can't find out the details of the error.   I have selected
  "report the problem" repeatedly.

  The software installed on 23 Sept included Dbus , libdbus-1-3,  and
  dbus-x11 versions 1.6.18-0ubuntu4.2.  I tried downgrading these 3 to
  -0ubuntu4 but the problem remained after a reboot.   There were about
  20-30 packages updated at the same time, including linux-image, but I
  can't spot which might be causing the problem.   I'm using a clean
  install of ubuntu 14.04 but with my /home directory from an older
  ubuntu installation.

  
  TOP output:
  24974 simon     20   0 2357692 181696  65696 R  27.6  4.5   2:34.62 software-c+ 
   2253 root      20   0  279028  58104  19416 S  26.6  1.4   3:19.18 Xorg        
  11096 simon     20   0 1391072 186192  81872 R  22.9  4.6   5:02.98 chromium-b+ 
   3899 simon     20   0  719408  32324  17924 R  19.9  0.8   2:55.82 hud-service 
  17259 simon     20   0 1036360 203656  48764 R  17.9  5.0   2:47.82 thunderbird 
   4291 simon     20   0 1591956 113836  41064 S  11.6  2.8   1:20.75 compiz      
   5857 simon     20   0  860872  76324  14440 S   5.3  1.9   1:09.93 gnome-term+ 
   3915 simon     20   0  590728  71048  10796 S   2.7  1.8   0:41.92 ibus-ui-gt+ 
   3918 simon     20   0  769636  73648  11544 S   2.7  1.8   0:42.82 unity-pane+ 
   4402 simon     20   0  511960  71072  12024 S   2.7  1.8   0:41.36 nm-applet   
   7212 simon     20   0  847244  67792  12680 S   2.7  1.7   0:37.13 update-not+ 
   3865 simon     20   0  666200  67632   7956 S   2.3  1.7   0:37.61 bamfdaemon  
   3911 simon     20   0  906492  68264   7816 S   2.3  1.7   0:38.02 gnome-sess+ 
   4130 simon     20   0  776980  67892   8080 S   2.3  1.7   0:36.34 indicator-+ 
   4146 simon     20   0  499124  66596   8156 S   2.3  1.6   0:35.04 indicator-+ 
   4410 simon     20   0  405976  73952   9800 S   2.3  1.8   0:34.70 smart-noti+ 
   4194 simon     20   0  391836  65148   7236 S   2.0  1.6   0:35.79 notify-osd

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu8
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.14.1-0ubuntu3.4
  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
  CurrentDesktop: Unity
  Date: Mon Sep 29 10:06:59 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Advanced Micro Devices, Inc. [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series] [1002:68f9] (prog-if 00 [VGA controller])
     Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:2127]
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 004 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-36-generic root=/dev/mapper/vg1-rootfs ro nodmraid nomdmonddf nomdmonisw
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/02/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0507
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M3N78-VM
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0507:bd07/02/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N78-VM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.52-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
  version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
  xserver.bootTime: Mon Sep 29 10:05:47 2014
  xserver.configfile: default
  xserver.devices:
   input        Power Button         KEYBOARD, id 6
   input        Power Button         KEYBOARD, id 7
   input        PIXART USB OPTICAL MOUSE MOUSE, id 8
   input        saa7134 IR (Leadtek Winfast DTV KEYBOARD, id 9
   input        AT Translated Set 2 keyboard KEYBOARD, id 10
  xserver.errors:
   
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.15.1-0ubuntu2.1
  xserver.video_driver: radeon

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