I am now able to replicate my video freeze by lowering and raising windows at a fast pace. When doing this my screen will 'flicker' for an instant and at times will continue to flicker. The flicker consists actually of two areas on the screen. I've tried to capture a screen shot when the continuous flicker is happening but as soon as I raise the window for Gnome screen shot the flicker stops. Tonight when lowering and raising windows at a fast pace the freeze occurred. Running
cat /sys/kernel/debug/dri/0/i915_swizzle_info outputted: bit6 swizzle for X-tiling = none bit6 swizzle for Y-tiling = none DDC = 0x00200010 DDC2 = 0x00300030 C0DRB3 = 0x0030 C1DRB3 = 0x0010 Running cat /sys/class/drm/card0/error outputted: no error state collected The freeze occurred at 20:07:39 my syslog shows this for that time period Oct 14 20:07:32 localhost kernel: [171877.801126] [drm:drm_mode_addfb2] [FB:57] Oct 14 20:07:32 localhost kernel: [171877.838608] [drm:drm_mode_addfb2] [FB:60] Oct 14 20:07:32 localhost kernel: [171877.926645] [drm:drm_mode_addfb2] [FB:64] Oct 14 20:07:32 localhost kernel: [171877.944068] [drm:drm_mode_addfb2] [FB:65] Oct 14 20:07:32 localhost kernel: [171877.975866] [drm:drm_mode_addfb2] [FB:66] Oct 14 20:07:32 localhost kernel: [171877.993399] [drm:drm_mode_addfb2] [FB:67] Oct 14 20:07:33 localhost kernel: [171879.439826] [drm:drm_mode_addfb2] [FB:68] Oct 14 20:07:33 localhost kernel: [171879.462886] [drm:drm_mode_addfb2] [FB:69] Oct 14 20:07:33 localhost kernel: [171879.480867] [drm:drm_mode_addfb2] [FB:70] Oct 14 20:07:36 localhost kernel: [171881.525273] [drm:drm_mode_addfb2] [FB:57] Oct 14 20:07:36 localhost kernel: [171881.660074] [drm:drm_mode_addfb2] [FB:59] Oct 14 20:07:36 localhost kernel: [171881.676724] [drm:drm_mode_addfb2] [FB:64] Oct 14 20:07:36 localhost kernel: [171881.710189] [drm:drm_mode_addfb2] [FB:65] Oct 14 20:07:36 localhost kernel: [171881.726965] [drm:drm_mode_addfb2] [FB:66] Oct 14 20:07:36 localhost kernel: [171881.743498] [drm:drm_mode_addfb2] [FB:67] Oct 14 20:07:36 localhost kernel: [171881.786167] [drm:drm_mode_addfb2] [FB:68] The flicker also appears when switching between window applications such as from window 1 Evolution to window 2 Firefox or any other window. -- 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/1497627 Title: Periodically video will freeze for no reason at all and no specific time between freezes. Status in linux package in Ubuntu: Confirmed Bug description: What I expect to happen is the video to not freeze every so often. What happened is that the video froze. This has been going on for over a year. It doesn't matter if I have any applications open such as Evolution or Firefox. It could happen any time during the day when I'm working on the computer or during the night when it's the most idle. Once the video freezes the cursor can still be moved around the desktop however clicking on anything does not work. During this time all background process and cronjobs continue to run. --- ApportVersion: 2.14.1-0ubuntu3.13 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: chris 2095 F.... pulseaudio CurrentDesktop: GNOME DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=bb329dc0-0642-4b6a-876a-12c2f02fb7f6 InstallationDate: Installed on 2014-10-24 (332 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. OptiPlex 780 Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-63-generic root=UUID=4254a7e9-429b-4f53-a08c-ae7ff839b98f ro drm.debug=0xe plymouth:debug ProcVersionSignature: Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25 RelatedPackageVersions: linux-restricted-modules-3.13.0-63-generic N/A linux-backports-modules-3.13.0-63-generic N/A linux-firmware 1.127.15 RfKill: Tags: trusty Uname: Linux 3.13.0-63-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 08/06/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.name: 0C27VV dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.asset.tag: LE0006476 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd08/06/2013:svnDellInc.:pnOptiPlex780:pvr:rvnDellInc.:rn0C27VV:rvrA01:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 780 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1497627/+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
