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[Peleg <freepeleg@xxxxxxxxx>]

I am using Dell latitude e7440, Ubuntu trusty, having the same problem.
Every time I lock my screen using <Win-key>-L, after a few seconds my
vent goes crazy and the temperature rises to 80+ Celsius.

I could not run the `dstack` file properly. The output of `sh ./dstack compiz > compizstack.txt` was
====
Could not attach to process.  If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.
/home/peleg/2417: No such file or directory.
Thread ID 1 not known.
/tmp/dstackscript4955:4: Error in sourced command file:
No stack.
====

The output of `sudo sh ./dstack compiz > compizstack.txt` was
====
81      ../sysdeps/unix/syscall-template.S: No such file or directory.
185     ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: No such file or directory.
81      ../sysdeps/unix/syscall-template.S: No such file or directory.
====


My system info:

* Ubuntu 14.04.3 LTS (trusty)
* Architecture: 64 bit
* Kernel version: 3.16.0-40-generic
* Dell E7440
* Bios version: A14

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to fglrx-installer in Ubuntu.
https://bugs.launchpad.net/bugs/969860

Title:
  fglrx uses 100% CPU when screen turns off (spinning in
  glXWaitVideoSyncSGI or glXSwapBuffers)

Status in Compiz:
  Invalid
Status in Compiz 0.9.8 series:
  Invalid
Status in Compiz Core:
  Invalid
Status in fglrx:
  Confirmed
Status in The Ubuntu Power Consumption Project:
  Fix Released
Status in compiz package in Ubuntu:
  Invalid
Status in fglrx-installer package in Ubuntu:
  Fix Released
Status in fglrx-installer-updates package in Ubuntu:
  Fix Released
Status in gnome-shell package in Ubuntu:
  Invalid

Bug description:
  WORKAROUND (1):
  1. Open Catalyst Control Center.
  2. Go to 3D > More Settings.
  3. Set "Wait for vertical refresh" to "On, unless application specifies".
  And if that doesn't work, then also do:
  4. Run "ccsm"
  5. In Workarounds, enable "Force full screen redraw (buffer swap) on repaint".

  WORKAROUND (2):
  1. Run ccsm (from package compizconfig-settings-manager)
  2. In OpenGL > Sync To VBlank = OFF

  TEST CASE:
  1. Monitor compiz CPU usage (from /proc/<pid of compiz>/stat or top in batch mode)
  2. In "brightness and lock" settings set "Turn screen off when inactive" to 1 minute
  3. Wait until screen turns off
  4. Move mouse or press a key to turn screen back on
  5. Check the CPU usage from the monitor

  ACTUAL RESULT:
  When screen turns off compiz goes to 100%
  When the screen turns back on, cpu usage drops immediately to a normal value
  The graph attached shows %CPU of compiz with a sample per second. The graph has been captured on a system with  a Radeon HD5770 and fglrx if that matter

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: compiz 1:0.9.7.2-0ubuntu4
  ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
  Uname: Linux 3.2.0-21-generic x86_64
  NonfreeKernelModules: fglrx
  .tmp.unity.support.test.0:

  ApportVersion: 2.0-0ubuntu1
  Architecture: amd64
  CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  CompositorRunning: compiz
  Date: Sat Mar 31 10:17:48 2012
  DistUpgraded: 2012-02-01 00:15:24,616 DEBUG enabling apt cron job
  DistroCodename: precise
  DistroVariant: ubuntu
  MachineType: Gigabyte Technology Co., Ltd. GA-890GPA-UD3H
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-21-generic root=UUID=cf89ba34-108b-404d-9804-32d54a1df2ea ro quiet splash vt.handoff=7
  SourcePackage: compiz
  UpgradeStatus: Upgraded to precise on 2012-01-31 (59 days ago)
  dmi.bios.date: 07/23/2010
  dmi.bios.vendor: Award Software International, Inc.
  dmi.bios.version: FD
  dmi.board.name: GA-890GPA-UD3H
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrFD:bd07/23/2010:svnGigabyteTechnologyCo.,Ltd.:pnGA-890GPA-UD3H:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-890GPA-UD3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
  dmi.product.name: GA-890GPA-UD3H
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  version.compiz: compiz 1:0.9.7.2-0ubuntu4
  version.fglrx-installer: fglrx-installer N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.32-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu8
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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