Yeah, I can try another kernel, but I don't see how that helps to identify the problem. Shouldn't there be some register or log showing what part of the system is getting out of sorts?
PS: After a long shutdown and restart, the problem reappeared within 15 minutes of starting. I noticed this time that the cpu temperature does NOT go up when the system is lagging. When performance is normal, cpu temperature goes up quite a bit. ~$ gtkperf -a Total time: 108.74 (normal is around 10) ~$ sudo hdparm -tT /dev/sda Timing cached reads: 142 MB in 2.02 seconds = 70.45 MB/sec (normal is around 800) Timing buffered disk reads: 62 MB in 3.08 seconds = 20.14 MB/sec -- 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: 13.04, 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: Incomplete 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: Incomplete 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. Testing showed the issue is triggered by the TLP power management package. TLP was installed in an attempt to resolve issue of fan running constantly. 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
