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 To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/969860/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
