apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1303150/+attachment/4069538/+files/Lspci.txt
-- 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/1303150 Title: 2.13 kernels (ALL) : Multihead multi-gpu broken for at least Nvidia GPUs Status in “linux” package in Ubuntu: Confirmed Bug description: 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1303150/+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
