So far I think we've established that it is not a rouge CPU hog that is blocking the system. Having to restart the system rather the session, also lends credence to that it is not a simple userspace or even gfx driver issue.
On the theory that the GPU goes nuts, download and build http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/ (maybe apt-get install intel-gpu-tools if you feel lucky), then run intel_gpu_top. Except for running gtkperf etc, the GPU should be lightly loaded. On the theory that the CPU goes nuts, apt-get install powertop latencytop, and run the pair of those looking for abnormalities. For powertop, the CPU should be waking up and hitting max frequency when busy and hitting C6+ when idle. latencytop should help identify what is taking time (not necessarily cpu cycles) to complete. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1189645 Title: General lag under desktop environments Status in X.org xf86-video-intel: New Status in “flashplugin-nonfree” package in Ubuntu: New Status in “linux” package in Ubuntu: Confirmed Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete Status in “flashplugin-nonfree” source package in Raring: New Status in “linux” source package in Raring: Confirmed Status in “xserver-xorg-video-intel” source package in Raring: New Status in “flashplugin-nonfree” source package in Saucy: New Status in “linux” source package in Saucy: Confirmed Status in “xserver-xorg-video-intel” source package in Saucy: Incomplete Bug description: A while after logging on, the system gets really slow. Menus and window movements take a while to respond, switching windows is slow, etc. This is a regression, it was not like this using Ubuntu 12.10, it just started on 13.04. Tried different desktops (Unity, GnomeFaillback, Lxde). They all have the same issue. See this kernel bug report for more info: https://patchwork.kernel.org/patch/2400621/ ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-23-generic 3.8.0-23.34 ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11 Uname: Linux 3.8.0-23-generic i686 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: alan 2357 F.... pulseaudio Date: Mon Jun 10 16:35:22 2013 HibernationDevice: RESUME=UUID=08003f81-dc4b-4697-adb9-c4f28291be17 InstallationDate: Installed on 2012-08-17 (297 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120724.2) MachineType: Dell Inc. Latitude D420 MarkForUpload: True PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-23-generic root=UUID=84ceb2d5-8fea-40c7-8d75-337c174735ce ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.8.0-23-generic N/A linux-backports-modules-3.8.0-23-generic N/A linux-firmware 1.106 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to raring on 2013-05-04 (37 days ago) dmi.bios.date: 12/18/2006 dmi.bios.vendor: Dell Inc. dmi.bios.version: A03 dmi.board.name: 0TJ984 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA03:bd12/18/2006:svnDellInc.:pnLatitudeD420:pvr:rvnDellInc.:rn0TJ984:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude D420 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1189645/+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
