Thanks for testing. We can perform a "Reverse" bisect to identify the commit that fixes this in 3.19. First, can you also test the latest 3.18 upstream kernel to see if it already has the fix? It can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18.2-vivid/ ** Tags added: needs-bisect -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1408593 Title: X server disables acceleartion or turns off output (makes screen black) after kernel upgrade to v3.18 (Ubuntu Vivid) Status in linux package in Ubuntu: Confirmed Status in xorg package in Ubuntu: Confirmed Bug description: after reboot into kernel 3.18 (3.18.0-8.9) with Intel driver version 2:2.99.916+git20141119-1~exp1ubuntu1 it disables output / blacks the screen and puts in the log : [ 37.179] (II) GLX: Initialized DRI2 GL provider for screen 0 [ 37.215] (WW) intel(0): Failed to submit rendering commands, trying again with outputs disabled. (then refuses to switch local VTs both by [Ctrl-]Alt-Fn and by chvt in remote logins) after reverting to 2:2.99.914-1~exp1ubuntu6 it puts : [ 41.679] (II) GLX: Initialized DRI2 GL provider for screen 0 [ 41.711] (EE) intel(0): Failed to submit rendering commands, disabling acceleration. (then allows to log in bu with desktop composition effects disabled) after reboot back into kernel 3.16.0-28.38 , both *.916 and *.914 drivers work well probably this bug should also be attached to kernel package v3.18 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xorg 1:7.7+7ubuntu2 ProcVersionSignature: Ubuntu 3.18.0-8.9-generic 3.18.1 Uname: Linux 3.18.0-8-generic x86_64 ApportVersion: 2.15.1-0ubuntu1 Architecture: amd64 Date: Thu Jan 8 11:23:52 2015 InstallationDate: Installed on 2009-11-01 (1893 days ago) InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=uk_UA.UTF-8 SHELL=/bin/bash SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.15.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mwg 1214 F.... pulseaudio CRDA: country UA: DFS-UNSET (2400 - 2483 @ 40), (N/A, 20), (N/A), NO-OUTDOOR (5150 - 5350 @ 40), (N/A, 20), (N/A), NO-OUTDOOR (57240 - 65880 @ 2160), (N/A, 40), (N/A), NO-OUTDOOR CurrentDesktop: KDE DistroRelease: Ubuntu 15.04 HibernationDevice: RESUME=UUID=6932e499-f0ad-4456-b93c-2b7f9bf763dc InstallationDate: Installed on 2009-11-01 (1893 days ago) InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) MachineType: Acer Aspire xxxx Package: xorg 1:7.7+7ubuntu2 PackageArchitecture: amd64 ProcEnviron: LANGUAGE= TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic root=UUID=9bc29087-2e9e-4bf9-bea1-2540902b5ae3 ro rootflags=commit=3600 transparent_hugepage=always init=/lib/systemd/systemd ProcVersionSignature: Ubuntu 3.16.0-28.38-generic 3.16.7-ckt1 RelatedPackageVersions: linux-restricted-modules-3.16.0-28-generic N/A linux-backports-modules-3.16.0-28-generic N/A linux-firmware 1.140 Tags: vivid vivid Uname: Linux 3.16.0-28-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm admin cdrom dialout disk kvm lpadmin netdev plugdev sambashare src _MarkForUpload: True dmi.bios.date: 05/06/2011 dmi.bios.vendor: INSYDE dmi.bios.version: V1.24 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: JV10_CS dmi.board.vendor: Intel Corp. dmi.board.version: Base Board Version dmi.chassis.type: 1 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDE:bvrV1.24:bd05/06/2011:svnAcer:pnAspirexxxx:pvrV1.24:rvnIntelCorp.:rnJV10_CS:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion: dmi.product.name: Aspire xxxx dmi.product.version: V1.24 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1408593/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
