apport information ** Tags added: apport-collected petra
** Description changed: As the summary says. This is 100% repeatable and there's been a fair amount of traffic about it on various lists. The current concensus is that the root cause is down to to powersave mode tweaks in all GPU modules To repeat: install multiple nvidia GPUs in a desktop system (or a multi-gpu card such as nvidia Quadro CVS440) Boot up Trusty beta versions (or 2.13 kernel). try configuring displays using standard tools based on xrandr This worked fine in Saucy (crosscheck: boot off 13.10 64bit DVD) Apparently this is fixed in the 2.14 kernels. It can be worked around by manually configuring the devices in xorg.conf and enabling Xinerama, BUT - this results in massive slowdown and as this disables xrandr a number of important apps (such as vlc) will refuse to run. This is a major regression and needs to be treated as such. + --- + ApportVersion: 2.14.1-0ubuntu1 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: alan 3033 F.... pulseaudio + /dev/snd/controlC0: alan 3033 F.... pulseaudio + DistroRelease: Ubuntu 14.04 + HibernationDevice: RESUME=UUID=68be2b9c-e944-4f7e-996d-7360074299d3 + IwConfig: + irda0 no wireless extensions. + + eth0 no wireless extensions. + + lo no wireless extensions. + NonfreeKernelModules: zfs zunicode zavl zcommon znvpair spl + Package: linux (not installed) + ProcFB: 0 nouveaufb + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-23-generic ro boot=zfs root=ZFS=MAGENTA/ROOT/RARING-1 rpool=MAGENTA elevator=noop panic=30 reboot=w zswap.enabled=1 bootdegraded=true nomdmonddf nomdmonisw + ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8 + PulseList: + Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied + No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-3.13.0-23-generic N/A + linux-backports-modules-3.13.0-23-generic N/A + linux-firmware 1.127 + RfKill: + 0: hci0: Bluetooth + Soft blocked: no + Hard blocked: no + Tags: petra + Uname: Linux 3.13.0-23-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 08/07/2008 + dmi.bios.vendor: Intel Corp. + dmi.bios.version: JOQ3510J.86A.0942.2008.0807.1958 + dmi.board.asset.tag: Base Board Asset Tag + dmi.board.name: DQ35JO + dmi.board.vendor: Intel Corporation + dmi.board.version: AAD82085-803 + dmi.chassis.type: 3 + dmi.modalias: dmi:bvnIntelCorp.:bvrJOQ3510J.86A.0942.2008.0807.1958:bd08/07/2008:svntranstecAG:pn:pvr:rvnIntelCorporation:rnDQ35JO:rvrAAD82085-803:cvn:ct3:cvr: + dmi.sys.vendor: transtec AG ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1303150/+attachment/4069534/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1303150 Title: 2.13 kernels (ALL) : Multihead multi-gpu broken for at least Nvidia GPUs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1303150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
