Having this problem as well with my Dell Latitude E7440 - switching to performance seemed to help as well (thanks Laurent!)
The slowdown doesn't always happen, but it does appear to happen after sometimes resuming from standby. I've not known whether to blame it on the DE I was using (Cinnamon) or some other component. -- 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: Incomplete 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
