FrançoisB, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com /daily-live/current/ .
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report: apport-collect -p linux <replace-with-bug-number> Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily kernel folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags: kernel-fixed-upstream kernel-fixed-upstream-VERSION-NUMBER where VERSION-NUMBER is the version number of the kernel you tested. For example: kernel-fixed-upstream-v3.11.1 This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag: needs-upstream-testing If the mainline kernel does not fix this bug, please add the following tags: kernel-bug-exists-upstream kernel-bug-exists-upstream-VERSION-NUMBER As well, please remove the tag: needs-upstream-testing Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding. ** Changed in: linux (Ubuntu) Status: Triaged => Incomplete -- 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/556727 Title: Micro-freezes when playing sounds and videos Status in “linux” package in Ubuntu: Incomplete Bug description: There is lag on all my audio and video (Rythmbox, Totem...) every few seconds. The problem disappears when I add "noapic" in the kernel parameters. I didn't notice any error messages in the system log (syslog...) It is a regression because this issue does not exist in previous versions of Ubuntu on this computer : Ubuntu 9.04 : ok Kubuntu 9.10 : ok lsb_release -rd Description: Ubuntu lucid (development branch) Release: 10.04 uname -a 2.6.32-19-generic #28-Ubuntu SMP Thu Apr 1 10:39:41 UTC 2010 x86_64 GNU/Linux lspci: :1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3) 00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03) 00:1f.2 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03) 01:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 8800M GTX] (rev a2) 06:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100 08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) 0c:07.0 FLASH memory: ENE Technology Inc ENE PCI Memory Stick Card Reader Controller 0c:07.1 SD Host controller: ENE Technology Inc ENE PCI SmartMedia / xD Card Reader Controller 0c:07.3 FLASH memory: ENE Technology Inc ENE PCI Secure Digital / MMC Card Reader Controller 0c:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller (rev c0) lsusb: Bus 007 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 002: ID 046d:c019 Logitech, Inc. Optical Tilt Wheel Mouse Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 174f:6d51 Syntek 2.0Mpixel Web Cam - Eurocom D900C Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Thanks for your support ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-2.6.32-19-generic 2.6.32-19.28 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1 Uname: Linux 2.6.32-19-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: fbardouil 1476 F.... pulseaudio CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf0f00000 irq 22' Mixer name : 'Realtek ALC883' Components : 'HDA:10ec0883,15580573,00100002 HDA:10573055,10573055,00100700' Controls : 34 Simple ctrls : 21 CheckboxSubmission: e36ef7921d5e5a075c6a4cdaf2faaa5d CheckboxSystem: bff4e5d5671c70dae3fb6d0a9862e8e0 Date: Tue Apr 6 20:12:25 2010 HibernationDevice: RESUME=UUID=9ead34b7-d0bc-4657-ba2b-3d318ec8a49d InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta amd64 (20100318) MachineType: Clevo Co. M570RU ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=cfdbc3ff-32bc-4afa-ae0b-0dd3f3d62497 ro quiet splash ProcEnviron: LANG=fr_FR.utf8 SHELL=/bin/bash RelatedPackageVersions: linux-firmware 1.33 SourcePackage: linux dmi.bios.date: 12/12/2007 dmi.bios.vendor: Phoenix dmi.bios.version: SROSA001.86C. dmi.board.name: SANTA ROSA dmi.board.vendor: CLEVO dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 1 dmi.chassis.vendor: CLEVO dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenix:bvrSROSA001.86C.:bd12/12/2007:svnClevoCo.:pnM570RU:pvrNotApplicable:rvnCLEVO:rnSANTAROSA:rvrNotApplicable:cvnCLEVO:ct1:cvrN/A: dmi.product.name: M570RU dmi.product.version: Not Applicable dmi.sys.vendor: Clevo Co. 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