** Tags added: apport-collected ** Description changed:
I'm trying triple monitor configuration on HD4000: - 1650x1050 on VGA1 - 1920x1080 on DP2 - 1920x1080 on DP3 Kernel hangs on boot if there is a monitor attached to DP2. If I attach monitor after boot, changing resolution on DP2 one CPU core becomes 100% busy with continuous errors: [drm:intel_dp_start_link_train], training pattern 1 signal levels 00000000 [drm:intel_dp_start_link_train], training pattern 1 signal levels 02000000 [drm:intel_dp_start_link_train], training pattern 1 signal levels 04000000 BTW, Same triple monitor configuration works fine in Windows 7 so I assume that hardware is ok. Please advise what can be done next? ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.5.0-25-generic 3.5.0-25.39~precise1 ProcVersionSignature: Ubuntu 3.5.0-25.39~precise1-generic 3.5.7.4 Uname: Linux 3.5.0-25-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.0.1-0ubuntu17.1 Architecture: i386 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: [Errno 2] No such file or directory CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory Date: Mon Feb 6 15:34:43 2012 IwConfig: Error: [Errno 2] No such file or directory Lspci: Error: [Errno 2] No such file or directory MachineType: ICP/iEi B207 MarkForUpload: True PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=0cccb37a-5761-45a8-b9db-1e5f6eebbb80 ro drm.debug=0x06 RelatedPackageVersions: linux-restricted-modules-3.5.0-25-generic N/A linux-backports-modules-3.5.0-25-generic N/A linux-firmware 1.79.2 RfKill: Error: [Errno 2] No such file or directory SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/10/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: B207 dmi.board.vendor: ICP/iEi dmi.board.version: V1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd12/10/2012:svnICP/iEi:pnB207:pvrV1.0:rvnICP/iEi:rnB207:rvrV1.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: B207 dmi.product.version: V1.0 dmi.sys.vendor: ICP/iEi + --- + ApportVersion: 2.0.1-0ubuntu17.1 + Architecture: i386 + DistroRelease: Ubuntu 12.04 + MarkForUpload: True + Package: linux (not installed) + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + SHELL=/bin/bash + Tags: precise + Uname: Linux 3.9.0-030900rc2-generic i686 + UnreportableReason: The running kernel is not an Ubuntu kernel + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lp plugdev sudo video -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1153627 Title: Kernel hangs while booting if there is a monitor connected to DP2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1153627/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
