Keenan Pepper, 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/552092 Title: Kernel mode switching causes screen flicker every few minutes on Intel Status in “linux” package in Ubuntu: Incomplete Bug description: I have this Intel chip in my laptop: VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07) and when I switched to Lucid beta I started seeing my screen flicker occasionally, about every few minutes on average (I haven't noticed anything that triggers flickering, it just seems random). I have used the laptop for many hours with KMS disabled (i915.modeset=0), and there was no sign of flickering. Bug 402982 seems like it might be closely related, but that describes almost continuous flickering, not every few minutes. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: keenan 1568 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf6afc000 irq 21' Mixer name : 'IDT 92HD71B7X' Components : 'HDA:111d76b2,102802aa,00100302' Controls : 25 Simple ctrls : 16 DistroRelease: Ubuntu 10.04 Frequency: Once a day. HibernationDevice: RESUME=UUID=120dc347-ae2a-43b6-9131-9312e08eb2c6 MachineType: Dell Inc. Inspiron 1545 NonfreeKernelModules: wl Package: linux (not installed) ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=e770002e-e3c0-4583-bf79-907a3f10d693 ro quiet splash ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2 Regression: Yes RelatedPackageVersions: linux-firmware 1.34 Reproducible: No RfKill: 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no Tags: lucid graphics regression-release needs-upstream-testing Uname: Linux 2.6.32-22-generic i686 UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare WpaSupplicantLog: dmi.bios.date: 05/13/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0G848F dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd05/13/2009:svnDellInc.:pnInspiron1545:pvr:rvnDellInc.:rn0G848F:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Inspiron 1545 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/552092/+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