** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1506746
Title: [i915_bpo] System often hangs at the login screen after update to 3.19.0-31.35+bpo1 Status in linux package in Ubuntu: Confirmed Bug description: After update to test kernel 3.19.0-31.35+bpo1, the system often hang at the login screen during system booting or reboot. Test configs: Intel broadwell UMA graphics Intel SKL-H graphics Intel SKL-U graphics Kernel version: 3.19.0-31.35+bpo1 Failure units: The above mentioned configs --- ApportVersion: 2.14.1-0ubuntu3.12 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: u 2220 F.... pulseaudio CurrentDesktop: Unity DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-kittyhawk2-trusty-amd64-20150907-1 DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=e81a6713-73c4-4380-a020-308203d60eb2 InstallationDate: Installed on 2015-10-13 (2 days ago) InstallationMedia: Ubuntu 14.04 "Trusty" - Failed to find casper uuid.conf in 'binary/casper/initrd.img-3.19.0-28-generic.old-dkms' LIVE Binary 20150907-22:18 IwConfig: eth0 no wireless extensions. lo no wireless extensions. MachineType: Dell Inc. Latitude E5470 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-31-generic root=UUID=bdf8893c-9b81-46e3-8943-21a4c75fddcd ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.19.0-31.35+bpo1-generic 3.19.8-ckt7 RelatedPackageVersions: linux-restricted-modules-3.19.0-31-generic N/A linux-backports-modules-3.19.0-31-generic N/A linux-firmware 1.127.15 Tags: trusty Uname: Linux 3.19.0-31-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/03/2015 dmi.bios.vendor: Dell Inc. dmi.bios.version: 99.3.34 dmi.board.vendor: Dell Inc. dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr99.3.34:bd09/03/2015:svnDellInc.:pnLatitudeE5470:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E5470 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1506746/+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