I have exactly the same problem with Ubuntu 13.10 on a Dell latitude e7240 with Cinnamon and 3.11.0-15-generic.
-- 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/1102318 Title: Slow system after resume from suspend Status in “linux” package in Ubuntu: Expired Bug description: Hello, For quite some time I've been experiencing problems with Ubuntu after resume from suspend. I have an Asus M70SR notebook with ATI Radeon Mobility HD3470 and using the open-source driver for it (from Quantal official repository). Currently I have Ubuntu 12.10 installed, but the same was happening before with 12.04. It doesn't matter if I use Unity, Gnome-Shell or Gnome Classic - the slow down is always there. My /etc/X11/xorg-conf looks like this: Section "Device" Identifier "ATI Radeon 3470HD" Driver "ati" Option "AccelMethod" "EXA" Option "AccelDFS" "true" Option "EnablePageFlip" "true" Option "SwapbuffersWait" "off" Option "ColorTiling" "on" Option "ColorTiling2D" "on" EndSection To give you some picture about it: Glxgears BEFORE suspend: ATTENTION: default value of option vblank_mode overridden by environment. ATTENTION: default value of option vblank_mode overridden by environment. ATTENTION: option value of option vblank_mode ignored. 4007 frames in 5.0 seconds = 801.315 FPS 3867 frames in 5.0 seconds = 773.359 FPS 3918 frames in 5.0 seconds = 782.475 FPS 3879 frames in 5.0 seconds = 774.902 FPS 3859 frames in 5.0 seconds = 771.025 FPS Glxgears AFTER resume from suspend: ATTENTION: default value of option vblank_mode overridden by environment. ATTENTION: default value of option vblank_mode overridden by environment. ATTENTION: option value of option vblank_mode ignored. 519 frames in 5.0 seconds = 103.466 FPS 455 frames in 5.0 seconds = 90.993 FPS 449 frames in 5.0 seconds = 89.738 FPS 553 frames in 5.0 seconds = 110.366 FPS 530 frames in 5.0 seconds = 105.835 FPS As you can see the performance after resume from suspend is about 1/8th of the normal. The workaround is to kill the X server (Ctrl-Alt- Backspace) and login again, the problem is gone then. However, it's quite annoying to have to close all open apps and then reopen them again. As you can see, I use vblank_mode=0 option and in Compiz the Vsync is turned off. The measuring was done from Gnome Classic session, but I can experience the same slowdown in Unity and in Gnome Shell as well. Best regards, Roman Dinga --- ApportVersion: 2.6.1-0ubuntu10 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: diniadeedee 5475 F.... pulseaudio /dev/snd/controlC0: diniadeedee 5475 F.... pulseaudio /dev/snd/pcmC0D0p: diniadeedee 5475 F...m pulseaudio DistroRelease: Ubuntu 12.10 HibernationDevice: RESUME=UUID=/etc/initramfs-tools/conf.d/resume InstallationDate: Installed on 2012-04-29 (268 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423) MachineType: ASUSTeK Computer Inc. M70SR MarkForUpload: True Package: linux (not installed) ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.7.0-7-generic root=UUID=f66e8c9c-0fd3-46e3-8484-5306b2f24bcb ro quiet splash radeon.pcie_gen2=1 vt.handoff=7 ProcVersionSignature: Ubuntu 3.7.0-7.15-generic 3.7.0 RelatedPackageVersions: linux-restricted-modules-3.7.0-7-generic N/A linux-backports-modules-3.7.0-7-generic N/A linux-firmware 1.98 Tags: quantal Uname: Linux 3.7.0-7-generic i686 UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again. UpgradeStatus: Upgraded to quantal on 2012-11-05 (78 days ago) UserGroups: adm audio bluetooth cdrom dip kvm libvirtd lpadmin netdev plugdev sambashare sudo vboxusers video dmi.bios.date: 03/21/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 204 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: M70SR dmi.board.vendor: ASUSTeK Computer Inc. dmi.board.version: 1.0 dmi.chassis.asset.tag: ATN12345678901234567 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer Inc. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr204:bd03/21/2008:svnASUSTeKComputerInc.:pnM70SR:pvr1.0:rvnASUSTeKComputerInc.:rnM70SR:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0: dmi.product.name: M70SR dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK Computer Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1102318/+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
