I changed the bug description to state the difficulty of reproducing this bug.
** Description changed: - After a suspend/resume using the ondemand governor the system is very slow to answer some inputs. The text output pauses for several seconds while I am typing this text. Trying to scroll a firefox window takes several seconds. Switching tabs in firefox takes several seconds: + After several suspend/resume cycles and several days of uptime, using the ondemand governor the system is very slow to answer some inputs. The text output pauses for several seconds while I am typing this text. Trying to scroll a firefox window takes several seconds. Switching tabs in firefox takes several seconds: cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor ondemand ondemand ondemand ondemand WORKAROUND: Setting the governor to "performance" fixes this problem. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bonnaudl 2373 F.... pulseaudio Date: Thu Dec 26 18:17:23 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cf81afe7-8427-45fa-9149-c11d060a5a26 InstallationDate: Installed on 2013-04-27 (243 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-01 (86 days ago) dmi.bios.date: 02/28/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0NVF5K dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd02/28/2012:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0NVF5K:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1264346 Title: [Dell Latitude E6520] After suspend, machine very slow with ondemand governor Status in “linux” package in Ubuntu: Confirmed Bug description: After several suspend/resume cycles and several days of uptime, using the ondemand governor the system is very slow to answer some inputs. The text output pauses for several seconds while I am typing this text. Trying to scroll a firefox window takes several seconds. Switching tabs in firefox takes several seconds: cat /sys/devices/system/cpu/c*/cpufreq/scaling_governor ondemand ondemand ondemand ondemand WORKAROUND: Setting the governor to "performance" fixes this problem. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bonnaudl 2373 F.... pulseaudio Date: Thu Dec 26 18:17:23 2013 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=cf81afe7-8427-45fa-9149-c11d060a5a26 InstallationDate: Installed on 2013-04-27 (243 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Dell Inc. Latitude E6520 MarkForUpload: True ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=749a9901-bdd3-4b5f-b80e-69414667e058 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: Upgraded to saucy on 2013-10-01 (86 days ago) dmi.bios.date: 02/28/2012 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.name: 0NVF5K dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd02/28/2012:svnDellInc.:pnLatitudeE6520:pvr01:rvnDellInc.:rn0NVF5K:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E6520 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1264346/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
